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HomeMy WebLinkAboutPermit L96-0044 - KING COUNTY / SURFACE WATER MANAGEMENT - TUKWILA 205 LEVEE SHORELINE EXEMPTIONL96 -0044 SEGALE LEVEE MAINTENANCE V4,:r't�:'Sei ir: aiia` iiva4' 7'; �? i> i' Li:: isi�irets G�. C�cfi., ey.... a: i': �, �:. �. e: ti` . d..: 1: a1�:: i.: i;: Y'. SC 'eYr`;.i�•_"'�'.:a "'�:..«`�i... July 26, 1996 City of Tukwila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director Dave Clark River Management Section King County Surface Water Management • 700 Fifth Avenue, Suite 2200 Seattle, WA 98104 RE: NOTICE OF EXEMPTION for Proposed 1996 Segale Levee Repairs (File No. L96 -0044) Dear Mr. Clark: We have reviewed the proposed riverbank repairs for the Segale Levee repair project and we concur the project meets the criteria for shoreline permit exemption based on normal repair and maintenance (WAC1 i73- 14- 040(b)), and complies with the Shoreline Management Act and local shoreline master program policies.(WAC 173 -14- 040(1)(3)). These conclusions are based on the following: Project Name: Tukwila 205 Levee Repair Project. Applicant: King. County Surface Water Management Division Project Location: Green River - Between S. 180th Street and Southern City Boundary. This is a continuation of the repairs to Segale levee repairs that began last year in response to the Shannon & Wilson Report (February 1995) which documented the deterioration of the levee and the potential for $150 million flood damage in the CBD. In 1995 an exemption was granted for the repairs to the river side of the levee which included regrading the slumping bank to a 1.5:1 slope with a filter blanket on the bank and installing a toe buttress with large woody debris for fish habitat. The embankment was reconstructed with live geogrid layers containing willow and dogwood cuttings. The proposal to complete the levee repairs for this year includes installing drainage facilities including perforated relief wells, catch basins, pump station and a force main to prevent future deterioration of the levee. 6300 Southcenter Boulevard Suite #100 74 1l0l. as 1 X81., _ 14401 3136,.7ootf.F,,axt(zo),4313a tm,i z W: CC 2. U O' co W =. W• es. W ?; zv .z �. moo. z W U� co W • W, H V: W z: is O1-7 z Removal of trees within the shoreline zone is subject to a tree permit from the City of Tukwila. If the restoration is going to result in the removal of any trees, you must first obtain the permit through the Department of Community Development. If you have any questions, please call John Jimerson at 431-3663. Sincerely, Steve Lancaster DCD Director cc: File Phil Fraser, Public Works Alice Kelly, DOE • •., .Fi r•• • ; • 1.-•Z • .0 Oi •!(/) ILLJi . AU Xi ••• ..• •. 11)•11.'; fkij 0!..• • .•- • Dt • •112 . .17! uk- :z 1-7•• ALI uy • • la • • ...;.•;0 to! '••• • .104:-•;. • •;I . • :LLI-L •• 01'.' • . • • • • *.;LIJ'us'i" . . • .• 20000- team - options: R 242Send -to: JACK Date: 10 -Jul- 9619:41:20 From: ANN (ANN SIEGENTHALER) To: ALEXA, DIANA -P, JACK, JOHN -J, MICHAEL- J,MOIRA ,NORA,VERNON,STEVE,GARY - SCHULZ Subject: Levee "repair &maintenance" Message -id: 6107E43101000000 Application -name: MHS 20MCB- options: NNYNA PLANNERS: I notice that KCSWM has applied for exemptions to SEPA and Shoreline permits for the maintenance of the Segale levee. I just completed permit exemption documents for a similar request along 42nd Avenue. It became evident during that process that we don't have a consistent approach to these projects. For example, KCSWM was surprised at my requests for additional info (e.g. how many I.f. of the river are you going to tear up, why are there no drawings of the proposed work, etc.). It seems in the past they just submitted a letter requesting exemptions and we just sent an "OK" letter back. You might want to agree on a process /documentation at a planners meeting. (OK, the truth is, I'm worried Andy Levesque might think I'm an anomaly). Ideally, all of these piecemeal levee projects should be evaluated by DCD as a whole, relative to new Comp plan & shore policies. Also, please note that reconstruction or maintenance of levees is NOT exempt from SEPA (WAC 19 -11- 800(3)). However, if there is a documented imminent threat, we can exempt as an emergency. So, if purpose of Segale levee "maintenance" is to raise or extend the dike, it's not exempt. For a shoreline exemption, the project must not cause "substantial adverse effects" and must be consistent w /shoreline master program policies. That should probably be documented in F &C that's sent to DOE. (Remember, DOE - -now Alice Kelly -- needs to review all exemptions that requireses Corps_permit.) - - -Ann z • Z ; CC 2 JU O 0 W. I J F. w O ga• - u. a. ▪ w Z� I-- o. zI U co CU = V `. Li: o w U - O Z t') King County Surface Water Management Division Department ofNatural Resources 700 Sth Avenue Suite 2200 Seattle, WA 98104 (206) 296 -6519 (206) 296 -0192 FAX July 9, 1996 Steve Lancaster, Director Department of Community Development City of Tukwila 6300 Southcenter Boulevard, Suite #100 Tukwila, WA 98188 1_4 (°-°(I'L pt ta RE: Maintenance Exemption for Segale Landward Work Dear Mr. Lancaster: •a •, The purpose of this letter is to request confirmation that landward repairs to the Segale Levee scheduled for construction this summer are exempt from formal issuance of a City of Tukwila Shoreline Substantial Development permit and SEPA determination. Ross Earnst, Public Works Director, and Phil Fraser, Senior Engineer, have indicated this project is likely to qualify for exemptions at several meetings on this project, beginning in December, 1995 and most recently at a meeting of the Green River Basin Technical Committee on June 27, 1996. The Segale landward project involves installation of a perforated underdrain pipe, catch basins, pump station, force main, excavation and grading, asphalt repair, relocating chainlink fence and gates, erosion control, and other work. A copy of the proposed contract document and set of plans are attached for your reference. We already have an approved Nationwide 3 permit from the U.S. Army Corps of Engineers and an Hydraulic Project Approval (HPA) from the State Department of Fisheries (see enclosed). My interpretation is that the proposed landward repairs are exempt from shorelines substantial development permit requirements pursuant to WAC 173- 14- 040(b). Repair activities at the Segale site will be carried out by King County acting on behalf of the Green River Flood Control Zone District (GRFCZD). This work will be constructed under a valid SEPA declaration in accordance with WAC 197 -11 -926. The GRFCZD, administered by King It 141;W D Steve Lancaster July 9, 1996 Page 2 County, is the local sponsor for the Segale project and is required to demonstrate compliance with all local permitting requirements. This project is funded by a Hazard Mitigation Grant from FEMA and Washington State which expires at the end of this year. As a result, your quick approval of this maintenance exemption is requested. We would like to go to bid within the next few weeks on this project. Please call Ross Earnst, Phil Fraser or myself at 296 -8388 if you have any questions about this important project. Thank you in advance for your assistance. Dave Clark Manager, River Management Section DC:SL:acJ9 Enclosures: Copy of proposed contract document for project Approved Nationwide 3 permit from the Corps Approved HPA Project plans cc: Ross Earnst, Public Works Director, City of Tukwila Phil Fraser, Senior Engineer, City of Tukwila Larry Gibbons, Manager, Project Management and Design Unit ATTN: Ken Gresset, Senior Engineer Andy Levesque, Senior Engineer, Green River Basin Program Stephanie Lucash, Program Coordinator, Green River Basin Program N LLl • wo... • LLQ.: H:w ▪ X;, • H- o .z w w. mo▪ o:. if31-Fit Z; • • • of-y RIMY TO ATT[NTION or Regulatory Branch DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P.O. BOX .3755 SEATTLE, WASHINGTON 98124 -2255 (-7117.7. r --:\ i rrr. r,t1 _ 1 9 1005 Dave Clark, Manager River Management Section ".King County Surface Water Management Division Department of Public Works 700 Fifth Avenue, Suite 2200 Seattle, Washington 98104 Dear Mr. Clark: !JUL 2 1 1r: ; SilR UE. "r.'A E Wdi:1;igZff.cgi • • Reference: 95 -4 -01165 • King County Public Works We have received the information you submitted pertaining to repair and stabilization work for the Segale Levee Stabilization Project located on the left bank of the Green River, at approximately River Mile 16, in Section 35,. Township 23N, Range 4E, city of Tukwila, King County, Washington.. We have determined that Nationwide Permit 3 authorizes the proposed stabilization project for the subject levee, This determination is based on the information and drawings submitted with your letter and application dated June 30, 1995. The regulations which govern our permit program contain a series of nationwide permits. Each nationwide permit authorizes a specific category of work, provided the conditions are met. Nationwide Permit 3 (33 CFR 330 Appendix A) allows the following work: The repair, rehabilitation, or replacement of any previously authorized, currently serviceable, structure or fill, or of any currently serviceable structure or fill . . . . The entire text of Nationwide Permit 3 and the general conditions are enclosed. •• This verification of Nationwide Permit 3 will be valid for 2 years from the date of this letter or until the nationwide permits are modified, reissued,' or revoked. This nationwide permit is scheduled to expire January 21, 1997, but is expected to be reissued. The verification will remain valid for the 2 years if reissuance of this nationwide permit is not modified or your proposed work complies with any subsequent modification. While you need no further authorization from us, you must still comply with other Federal, State and local requirements which may pertain to the work. If you have any questions, please contact Ms. Gail Terzi at the above address or by telephone at (206) 764 -6903. Enclosures cf: Noel Gilbrough, COE Sincerely, 4_ p„4, o}Sert H. Martin C R ief, Processing Section NATIONWIDE PERMIT CONDITIONS General Reaional Condition for the State of Washington applicable to all nationwide permits (NWP): Any activity or work.authorized under these NWP shall not.adversely impact onsite mitigation or restoration efforts. 33 CFR Part 330, Appendix A, Section C. GENERAL CONDITIONS: The following general conditions must be followed in order for any authorization by a NWP to be valid: 1. Navigation. No activity may cause more than a minimal adverse effect on navigation. • 2. Proper maintenance. Any structure or fill authorized shall he properly maintained, including maintenance to ensure public safety. 3. Erosion and siltation controls. Appropriate erosion and siltation controls must be used and maintained in effective operating condition during construction, and all exposed soil and other. fills must be permanently stabilized at the earliest . practicable date., 4. Aquatic life movements. No activity may substantially disrupt the movement of those species of aquatic life indigenous to the waterbody, including those species which normally migrate through the area, unless the activity's primary purpose is to impound water. 5. Equipment. Heavy equipment working in wetlands must be placed on mats or other measures must be taken to minimize soil disturbance. 6. Regional and case -by -case conditions. The activity must comply with any regional conditions which may have been added by the Division Engineer (see :.33.CFR 330.4(e)) and.any case specific.conditions. added by the Corps.of. Engineers (Corps). 7. Wild and-scenic rivers. • No activity may occur in a component of the National Wild and Scenic River System; or in a river officially designated by Congress as a "study river" for possible inclusion -in the system, while the river is in an official study status. Information on Wild and Scenic Rivers may be obtained from the National Park Service and the U.S. Forest Service. 8. Tribal rights. No activity or its operation may impair reserved tribal rights, including, but not limited to, reserved water rights and treaty fishing and hunting rights. 9. Water quality certification. In certain States, an individual State water quality certification must be obtained or waived '(ee'33 CFR 330.4(c)). 1 ti (b) The notification must be in writing and include the following information and any required fees: (1) Name, aooress, ano telephone numuer ui one prospuutivu puilri Lut; (2) Location of the proposed project; (3) • Brief description of the proposed project; the project's purpose; direct and indirect adverse environmental effects the project would cause;.any other NWP(s), regional general permit(s), or individual permit(s) used or • intended to be used to authorize any part of the proposed project or any related activity; • .. . (4) Where required by the terms of the NWP, a delineation of affected special aquatic sites, including wetlands; and (5) A statement that the prospective permittee has contacted: • (1)• The USFWS /NMFS regarding the presence of any .federally listed* (or proposed for listing) endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project; and any available information provided by those agencies. (The prospective permittee may contact Corps District Offices for USFWS /NMFS agency contacts and lists of critical habitat.) (ii) The SHPO regarding the presence of any historic properties in the permit area that may be affected by the proposed project; and the available information, if any, provided by that agency. (c) The standard individual permit•application form (Form ENG 4345) may by used as the notification but must clearly indicate that it is ,a predischarge notification (PDN) and must include all of the information required in (b)(1) -(5) of General Condition 13. (d) In reviewing an activity under the notification procedure, the District Engineer will first determine whether the activity will result in more than minimal individual or cumulative adverse environmental effects or will be contrary to the public interest.. .The prospective permittee..may, at his option, submit a proposed mitigation plan with the predischarge notification . to expedite the process and the District Engineer will consider any optional mitigation the applicant has included in the proposal in determining whether the net adverse environmental effects of the proposed work are minimal. The District Engineer will consider any comments from Federal and State agencies concerning the proposed activity's compliance with the terms and conditions of the NWP and the need for mitigation toreduce the project's adverse environ- mental effects to a minimal level. The District Engineer will upon receipt of a notification provide immediately (e.g., facsimile transmission, overnight mail, or other expeditious manner) a copy to the appropriate offices of the USFWS, State natural resource or water quality agency, EPA, and, if appropri- ate, the NMFS. With the exception of NWP 37, these agencies will then have 5 calendar days from the date the material is transmitted to telephone the 3 mr as - ...„,,,, ., MIVArAf$4. UHw ae,sur..c+.+r�rq*e&a+ b?VATI p' �' ..� it used to offset the acreage of wetland losses that would occur in order to meet the acreage limits of some of the NWP's (e.g., 5 acres of wetlands cannot be created to chanoe a 6 -acre loss of wetlands to a 1 -acre loss; however, the 5 created acres can oe useo to reouce tree impacts or the 6 -acre ioss). SECTION 404 ONLY CONDITIONS: In addition to the general conditions, the following conditions apply only to activities that involve the discharge.of dredged or fill material and must be followed in order for authorization by the NWP's to be valid: 1. Water supply intakes. No discharge of dredged or fill material may occur in the proximity of a public water supply intake except where the discharge is for repair of the public water supply intake structures or adjacent bank stabilization. 2. Shellfish production. No discharge. of dredged or fill material may occur in areas of concentrated shellfish production, unless the discharge is directly related to a shellfish harvesting activity authorized by NWP 4. 3. Suitable material. No discharge of dredged or fill material may consist of unsuitable material (e.q., trash, debris, car bodies, etc.) and material discharged must be free from toxic pollutants in toxic amounts (see Section 307 of the Clean Water Act). 4. Mitigation. Discharges of dredged or fill material into waters of the United States must be minimized or avoided to the maximum extent practicable at the project site (i.e., onsite), unless the District Engineer has approved • a compensation mitigation • plan for the specific regulated activity. •5: Spawning areas. Discharges in spawning areas during spawning seasons must be avoided to the maximum extent practicable. 6. Obstruction of high flows. To the maximum extent practicable, discharges must not permanently restrict or impede the passage of normal or expected high flows or cause the relocation of the water (unless the primary purpose of the fill is to impound waters). 7. Adverse impacts from impoundments. If the discharge creates an impoundment of water, adverse impacts on the aquatic system caused by the accelerated passage of water and /or the restriction of its flow shall be minimized to'the maximum extent practicable. 8. Waterfowl breeding areas. Discharges into breeding areas for migratory waterfowl must be avoided to the maximum extent practicable. 9. Removal of temporary fills. Any temporary fills must be removed in their entirety and the affected areas returned to their pre - existing elevation. BM -7; NPDCOM) 5 HYDRAULIC PROJECT APPROVAL R.C.W. 75.20.100 R.C.W. 75.:20.103 n June 8, 1996 (Jppticant snuuLa refer to tills uatu In att Currubp,, Jun.:i) PAGE 1 OF 3 PAGES DEPART T FISHERIES General Admi stration Bldg. Olympia, W h gton 98504 (2 ) 7 -6650 !' Z w. 6� �U 0 0. too. w= _1 CO Lt.', w O' u =w ct Z�. I— O Z la U� 0— ww F- -, O: w Z' • z HYDRAULIC PROJECT APPROVAL R.C.W. 75.20.100 DEPARTM OF ISHERIES R.C.W. 75.20.103 General Admi ration Bldg. Was June 8, 1996 Olympia (20 753 t.6508504 PPiicant snoula Teter to Uiis crate in ail corrusNunawice) PAGE. OF 3 PAGES 10 LAST NAME King County Public Works 18 CONTACT PHONE(S) (206) 296 -6519 'CONTROL NUMBER 00- A3183 -02 WATE careen River 9 WRIA 09.0001 5. The stream bank at the point .of discharge shall be armored to prevent scouring. 6. Excavation for placement of the structure or armoring materials shall be isolated from the wetted perimeter or done during a low flow period. • 7. Alteration or disturbance of the bank and bank vegetation shall be limited to that necessary to construct the project. Within seven calendar days of project completion, all disturbed areas shall be protected from erosion using vegetation or other means. Within one year of project completion, the banks, including riprap areas, shall be revegetated with native or other approved woody species as shown on the bioengineered rvegetation plan and maintained as necessary for years to ensure 80 percent survival. 8. Placement of bank protection material waterward of the OHWL shall be restricted to the minimum amount necessary to protect the toe of the bank or for installation of mitigation features approved by WDFW 9. The toe shall have been designed and shall be installed to protect the integrity of bank protection material. 10. Bank sloping shall be accomplished in a manner that avoids release of overburden material into the water. Overburden material resulting from the project shall be deposited so it will not reenter the water. 11. Bank protection material shall be clean, angular rock and shall be installed to withstand 100 -year peak flows. River gravels or other round cobbles shall not be used as exterior armor. 12. Bank protection and filter blanket material shall be placed from the bank. Dumping onto the bank face shall be permitted only if the toe is established and the material can be confined to the bank face. 13. Erosion control methods shall be used to prevent siltation from entering the stream. These may include, but are not limited to, straw bales, filter fabric, temporary sediment ponds, check dams of pea gravel - filled burlap bags or other material, and /or immediate mulching of exposed areas. 14. All waste material such as construction debris silt, excess dirt or overburden resulting from this project shall be deposited above the limits of flood water in an approved upland disposal site. REV 10/16/88 z ~ w. JU O 0 NO, W =` J I- M u. W o g J • d. W z� F- 0 z uj Uo O N • H: W z' U� O � z DEPARTMENT OF FISHERTES HYDRAULIC PROJECT APPROVAL R.C.W. 75.20.100 R.C.W. 75 .20.103 June 8, 1996 PAGE 3 OF 3 PAGES DEPARTM T OF ISHERIES General Admi i ration Bldg. Olympia, Was gton 98504 (20 7 -6650 1.0 LAST NAME - King County Public Works ONTACT PHONES) (206) 296 -6519 CONTROL NUMBER 00- A3183 -02 ES WATER reen River 9 WRIA 09.0001 15..Extreme care shall be taken to ensure that no petroleum.products, hydraulic fluid, fresh cement, sediments( sediment -laden water, chemicals, or any other toxic or deleterious materials are allowed to enter or leach into the stream. LOCATION: South of 180th St. SW in Tukwila.. MM REV 10/16/88 Z• w: 2 Dl. ;U O Wo W =, • N LL w.o • 1—La • 1—o w; • U = w; H V • . ;tii Zi `.Z City of TUk14'ila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director ::Apri1:...27, 1995 Dave Clark King County Public Works Surface Water Management 700 Fifth Avenue, Suite 2200 Seattle, WA 98104 RE: Segale Levee Dear Mr. Clark: The City of Tukwila has reviewed the proposed levee maintenance project and concur that the riverward phase constitutes normal maintenance pursuant to WAC 173- 14- 040(b). Therefore, the project does not require a substantial development permit. The Tukwila Department of Community Development requests however, that we be provided with a copy of the final riverbank design work when it becomes available. If you have any questions, don't hesitate to call me at 431 -3670. Sincerely, Steve. Lancaster Director, DCD cc: P. Fraser . •z • • a • • = .'- f- z. 6 JD- C.); • .0 o. .00 Ur • W N LL,. wo J LL cn ?. d •�W • • moo. • • z • ;w W; U �1. i0 N, 'w 1- U • LL p • • z. z 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431 -3670 • Fax (206) 431-3665 • King County Surface Water Management Division Department of Public Works 700 Fifth Avenue Suite 2200 Seattle, WA 98104 (206) 296-6519 (206) 296-0192 FAX March 23, 1995 Steve Lancaster, Director Department of Community Development City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila, WA 98188 RE: Permit Requirements for 1995 Segale Levee Maintenance Repairs Dear Mr. Lancaster: RECEIVED 231995 cy OEVEL-QPMENT The purpose of this letter is to request an exemption from City of Tukwila permit requirements for 1995 maintenance repairs to the Segale Levee on the left bank of the Green River in the City of Tukwila. The levee is currently being referred to as the Central Business District Levee by City of Tukwila Public Works Department star The Green River Flood Control Zone District (District) and City of Tukwila are cooperative partners in completion of the $815,095 Segale Levee Stabilization Project through the federal Hazard Mitigation Grant Program (HMGP). A 1994 interlocal agreement (enclosed) explains local cost sharing arrangements for this project. The District is administered by King County. Repairs to the Segale Levee have been the highest priority project on the District's annual maintenance list for the past four years. High costs delayed prior completion of the work. Federal and state grant funds available through the HMGP will now allow levee maintenance repairs to proceed. Recently- completed geotechnical studies at the Segale Levee as part of the grant project also confirm the urgent need for these repairs. The overall grant project has been divided into two phases: 1) riverward maintenance work to be completed by King County Roads Division crews this summer, and 2) landward work to address seepage problems, scheduled for installation in 1996. In order to schedule riverward levee work, which must be completed this summer during the construction window authorized by the State Department of Fish and Wildlife, :it`is'necessary to 'confirm with': you that these'repaiisFare categorically exempt from a formal issuance ofa a City of Aukwila`shorelines ".permit:',`. This understanding is based on Section 173- 14- 040(b) of the Washington Administrative Code related to normal maintenance or repair of existing river facilities. All maintenance activities performed by King County on behalf of the District are carried out under a valid SEPA declaration in accordance with WAC 197 -11 -926. A preliminary cross - section drawing and a vicinity map for the project have been attached for your reference. z. Q • F=-z'. w re JO: O 0 : = J • LL` w o J lL Q v F- _' z� '- O. z t- w uj U Q.. o -' CI I- W w - :- LL I- -O LLiz: 0 0 I---, z ; Mr. Steve Lancaster March 23, 1995 Page 2 Please confirm in writing that a maintenance exemption is applicable to proposed repairs at the Segale Levee. If further City of Tukwila permitting applications or review are necessary, please contact me as soon as possible. Public Works Director Ross Earnst and Senior Engineer Phil Fraser may address specific questions related to the completion and high priority of this work. Please contact me at 296 -8388 if you have any questions. I look forward to receiving your response to this important request. Sincerely, 61a,Lic Dave Clark, Manager River Management Section DC:SL:rsj6 Enclosures cc: Ross Earnst, Director, Department of Public Works, City of Tukwila ATTN: Phil Fraser, Senior Engineer Andy Levesque, Senior Engineer Stephanie Lucash, Program Coordinator Z w w w =! J I—; w g 7j1 a; 1— w: ;Z�t • +Z 1—i W:Ws .';C) • ZL O:� 'Z } • A.T. Levesque (03/20/95);. SEGALE LEVEE REPAIR typical cross section 3 0 12' min ,1 '•a-- 8' min± hi \ fill select levee 0 5' avg `. . existing levee fill . 1 L \ \ : 1 'Wish �i � select 1.75H :1 0.4' min hydrose and st• • pe @ 2H:1 V topsoil cover - d w /native -hrub ke w /coir co . • mix er n o TT-3 _. '1 =, • sI • clean sand and gravel ...' .:';:; ; . fill 1:fi, ��;-=� �'� 64 :, ';;.•.::- ''� •2H:1 V ove . i • II slope ang -xisting • rive , bank imbed 25 logs into (final placement determined habitat. toe buttress to in field) 2 0 clean fill sand and n geogrid layers gravel (typical) wrap geogri,• layers in coir • 0.8 t•psoillayers bet bet fill a �' °'�'• ' � ••. fill t;:;" fabric '. , ,;;. ;,.:. � een geogrid d coir wraps • � . ;;.., ..: '::' ;'�� :, ;.;.:: •,,, �� ' =:�: : ' "` '� , " ='% live native cuttings in • 1. � willow and dogwood topsoil layers i' . approx. . (typical) OHW: �• 1 0 . ; ;,' '3.1.'''% %,io` �, , SCALE: horiz: 1 inch vent: 1 inch = 10 feet 5 feet • F - s: fir excavate to lest angular large bowl • here �����(+ i. bedding �'V; ttl, 1 r toe � t'�V•�14�� ,_1.•.�OF_ k 0 0 10 2C 30 40 50 •0 4'-6' toe buttress 70 �i���fw� I via.: 15' :ii"I min =n . 90 100 • 80 z ~ W c4 2 0 0. W = j 0: ga I I. ~ s' F-0. z F-: ;W W 'U W W' LLico z onga re: Race irac 166 ST fro,. ST VICINITY MAP 1" = 2560' PI -IASE I SUMMAR.Y OF QUANTITIES NOM • DESCRIPTION (IW(TITY LINIT I. Z. 3, 4. 5. Mc e' IL I ZAT IO N SITE PR E. PA RI-IT ION DUPONT TYPHR" 3601 FILTRFARRJe. 4 "-TO 8" DJJJ \R(LY SPILLS CLEAN SAND IN PLACE LIMP SI4 LUMPSIM 975 465 65 L S. L.S. SQ•YD. CU.YDS. el.YUS. Pf(ASEa S(.t /AMARY DF QILANTITIES ITLN1 ND. DE�CI'.IPTIDN 3/AN-TIP/ UNIT 2. 3. 4, 5, NIOL3ILIZI1TI0N S!TL PREPf3RAT101Y DU PUNT T' /PP R 3601 FILTER f=MIBR/C 4" TO 8" LIUMUD' SP/ILLS 2LE(1N SAM) IN PLACE WM,511M LUMP SUN 930 3 gy L.S, L. S .50..7D CO, `D` cll r0 z H w O 0 J = CO U. w O. =a - w z� F= o z1-- w • w U� O (-2 : O I—. w• w F-- --- U— O w Z • U) O H Z P i City of Tukwila John W. Rants, Mayor Department of Community Development Steve Lancaster, Director May.. 8, 1995 Dave Clark King County Public Works Surface Water Management 700 Fifth Avenue, Suite 2200 Seattle, WA 98104 RE: Segale Levee Stabilization Project Dear Mr. Clark: This letter is to replace and supersede my letter to you dated April 27, 1995 regarding the Segale Levee Stabilization Project. I have reviewed the proposed Segale Levee Stabilization Project and find that the riverward phase of work is exempt from a shoreline substantial development permit pursuant to WAC 173- 14- 040(b). The Tukwila Department of Community Development requests that we be provided with a copy of the final riverbank design work when it becomes available. If you have any questions, don't hesitate to call me at 431 -3670. Sincerely, Steve Lancaster Director, DCD. A 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665 z ;�z.. mow. Vo 0),C1;• COw. .w m "CO • IL; wo • Q • Xw z �.. • z 1--; w; U Di 'o • = Uj ;1 0,. Wz 0 ~ • z el- ebruary 19 NON 6WILSON, INC OEOTECHNICAL ANO, ENVIRONMENTAL' CONSULTANTS .. • 400 N.. 34th 'St: �' Suiite 100 Box 300303: • 206%632.8020 klit n• • •'��.i:l'• ' -, _ .:.�, .. _ . C�. .- :.rT`.••._."'SnTa.�,- ,%'��1:' 3rt. f,., �i..,u ^yt�t 'n►'r�"»: r»— ...r.. . � .. ! �= erurcea�r..trmuor�r..+.�,•a... z; n �! r�{:. x". ��,' ,,.,,,._.,.,..••...,...,.,.,:.. • • 1: . r 1 1 1 1 . 1.. 1 1 1 1 1 1 .111 SHANNONE &WILSON s INC. February 13, 1995 • King County Surface Water Management Division 700 Fifth Avenue, Suite 2200 Seattle, Washington 98104 Attn: Mt Ken Gresset . RE: DRAFT GEOTECHNICAL REPORT, SEGALE LEVEE SEEPAGE AND STABILITY STUDIES, TUKWILA, WASHINGTON SEATTLE HANFORD FAIRBANKS ANCHORAGE SAINT LOUIS BOSTON Enclosed are four copies of our draft geotechnical report regarding the Segale Levee in Tukwila, Washington. The report includes results of our explorations and testing, summarizes our geotechnical recommendations for design, • and discusses construction considerations pertinent to the design recommendations In this report. After review and approval by King County Surface Water Management (SWM), we will issue our final geotechnical report. We appreciate the opportunity to work with you on this project and look forward to our continued association with SWM. Sincerely, SHANNON & WILSON, INC. Gregory Yischer, P.E. Principal Engineer GRF:LBJ /grf Enclosures: Draft Geotechnical Report, Segale Levee Seepage and Stability Studies, Tukwila, Washington (four copies) W6873 -01.RPT/W6873- Ikd/lkd 400 NORTH 34TH STREET SUITE 100. P.O. BOX 300303 SEATTLE, WASHINGTON 98103 206.632.8020 FAX 206.633.6777 TDD: 1.800.833.6388 W- 6873 -01 SHANNON 6WILSON, INC. TABLE OF CONTENTS Page 1.0 INTRODUCTION 1 2.0 SITE AND PROJECT DESCRIPTION 2 3.0 SITE HISTORY 3 4.0 FIELD EXPLORATIONS, TESTING AND RECONNAISSANCE 5 5.0 EXPLORATIONS AND TESTING BY OTHERS 6 6.0 LABORATORY TESTING • 6 7.0 SUBSURFACE CONDITIONS, RIVER MORPHOLOGY, AND RECONNAISSANCE 6 7.1 Subsurface Conditions 6 7.2 River Morphology 7 7.3 Reconnaissance 8 8.0 ANALYSES OF EXISTING CONDITIONS 9 8.1 Seepage Analyses - Existing Conditions 10 Q Stability Analyses Existing Conditions 11 9.0 DESIGN RECOMMENDATIONS 13 9.1 General 13 • 9.2 Landward Slope 14 9.3 Riverward Slope 16 • t 10.0 CONSTRUCTION CONSIDERATIONS 18 11.0 LIMITATIONS 19 REFERENCES 22 'Fable No. TABLE 1 Summary of Stability Analyses for Existing Conditions 11 W-6873-01 TABLE OF CONTENTS (cont.) Figure No. SHANNON jWILSON, INC. LIST OF FIGURES 1 Vicinity Map 2 Exploration Plan and Generalized Subsurface Profile 3 Typical Cross Sections of 1990 Corps Repair 4 Equipotential Lines for Flow Under Existing Conditions at Borings B -2 and B -5 5 Equipotential Lines for Flow Under Existing Conditions at Borings B -3 and B -6 . 6 Cross Section of Existing Conditions for Stability Analyses 7 Equipotential Lines for Flow After Relief Well Installation at Borings B -2 and B -5 8 Typical Detail for Relief Well 9 Proposed Remediation for Riverward Slope APPENDIX A APPENDIX B APPENDIX C APPENDIX D LIST OF APPENDICES FIELD EXPLORATION AND TESTING PROGRAM PREVIOUS EXPLORATIONS AND TESTING BY OTHERS LABORATORY TESTING PROGRAM IMPORTANT INFORMATION ABOUT YOUR GEC/TECHNICAL REPORT ii W- 6873 -01 ll.gri4e1/7" 11.7, r.R z z f- • mow. 00 CO o!.. wI w 0; g •= d; .F- o • z IH • moo.. ;off'} W' W' H - o: w Z 0 • SHANNON FiWILSON, INC. DRAFT GEOTECHNICAL REPORT SEGALE LEVEE SEEPAGE AND STABILITY STUDIES TUKWILA, WASHINGTON 1.0 INTRODUCTION This report presents the results of our subsurface explorations and geotechnical engineering studies completed for the Segale Levee near Southcenter Shopping Center, in Tukwila, Washington. The purpose of our work was to determine the rate of seepage through and beneath the levee to allow King County Surface Water Management (SWM) Division to design a collection and pumping system. In addition, our work included an evaluation of the stability of the levee to assist SWM in designing remedial measures for the levee. Our work included the following tasks: • Reviewing historical documents and interviewing U.S. Army Corps of Engineers ( Corps) personnel regarding the performance of the levee in this reach of the river. • Conducting a field reconnaissance along the levee to note areas of distress. b. ► Drilling six borings along the levee to evaluate the levee fill and underlying native soil conditions. ► Installing three observation wells and conducting in -situ field permeability testing. ► Conducting laboratory tests for classification purposes and to determine pertinent engineering properties of the samples. ► Preparing a log of each boring. • Completing engineering analyses to estimate the rate of seepage during the design storm event. • Performing analyses to determine the static and seismic stability of the levee slopes. ► Evaluating the adequacy of protection offered by the existing revetment, and providing recommendations for new riverward slope protection. ► Preparing this.report. ► Attending meetings with SWM personnel. 1 W- 6873 -01 1 1 1 1 1 1 1 SHANNON &WILSON, INC. The above services were conducted in general accordance with the scope of work outlined in Exhibit A of Contract No. P02832P between Shannon & Wilson, Inc. and King County, dated October 27, 1994. After SWM completes the design and prepares plans for the structural improvements recommended in this report, our scope of work.also includes a review of these documents. 2.0 SITE AND PROJECT DESCRIPTION The Segale Levee is located on the left (west) bank of the Green River along the Segale Business Park at the south end of Southcenter Shopping Center in Tukwila, 'Washington. The project involves the evaluation of approximately 2,000 lineal feet of the left bank and levee, extending from Segale Park Drive C to South 180th Street (Figure 1). Along this reach of the river, the levee height (from its crest to the landward toe) is approximately 10 feet. The height from the crest of the levee to the riverward toe is approximately 30 feet. The land immediately behind the levee is generally flat and occupied by industrial businesscs along the upstream one -half of the project reach and by parking lots along the downstream one -half of the project reach (Figure 2). Failure of the levee could lead to the release of water and threaten flooding to a number of industrial and commercial facilities in the Southcenter area with a total property improvement value of about $500 million. The Corps has estimated damages resulting from flooding at $150 million. Additionally, the Corps estimates that floodwaters could surge up to 5 feet deep through this area, also putting occupants or motorists at risk. The Green River is regulated by the Corps at Howard Hanson Dam. Because of this regulated discharge, flows of up to 12,000 cubic feet per second (cfs).can be seen for all flood frequencies, whether a 2 -year or 100 -year storm event. According to a stage - discharge rating curve provided by SWM, this discharge would result in a maximum river elevation of 30.7 feet (King County Aerial Survey datum - project datum). Based on survey data provided by the Corps and SWM, this would result in about 1.5 feet of freeboard. We understand that this flow could exist for up to a nine -day period, followed by a rapid lowering of the river level by up to 1 foot per hour. Our analyses and recommendations are based on the above hydrologic conditions. 2 W- 6873 -01 z z 1. Q�w 2 JU o O' U)0, U) w= J 1.-. wO u-a za w H =, z 1._. o z uj U o -, o ww Z uF-..o' ui z SHANNON FIWILSON, INC. If there are changes in project design criteria or location, the conclusions and recommendations presented in this report may not be applicable. If changes are made, we request that we be retained to review our conclusions and recommendations and to provide a written modification or verification. 3.0 SITE HISTORY • From our review of historical documents, we understand that the Segale Levee was originally constructed in 1966 as a 5- foot -high dike on native floodplain soils. Construction documents indicate that the levee was built with 1.75H:1V (horizontal to vertical) side slopes on both the landward and riverward sides. In 1973, it is our understanding that the adjacent landowner made a 5- foot -deep areal excavation along the landward toe of the levee, increasing the height of the levee to about 10 feet. Because this excavation was made on the floodplain, where the original levee was constructed, the lower 5 feet of the levee consists of horizontally bedded alluvial deposits. Since that time, a number of problems have been encountered along the levee. The following is a chronological history of the performance and repair of the Segale Levee, since the 1973 excavation. 1981 -82 King County patrols noted seepage and piping along two southerly areas of this reach of the river (not identified specifically) during high river flows and sandbagged these areas. 4/20/82 A geotechnical report was prepared by the Corps for a significant reach of the Green River. The Corps concluded that underseepage and piping problems existed in the study reach of the river and recommended a stabilization berm at the landward .toe. 1982 -83 King County patrols noted seepage and piping along two northerly areas of this reach of the river (not identified specifically) during high river flows and sandbagged these areas. More sandbags also were added to the two southerly areas identified in 1981 -82. In addition, the following observations were made: (1) the moisture line on the landward side of the levee was nearly the same elevation as that of the river, (2) water could be "pumped" out of the landward slope by pushing on the soil, and (3) water was coming up through the ground surface beyond the landward levee toe. 8/15/83 Subsurface explorations and a soils report were completed by King County for a 600 -foot long area along the levee. The results of this investigation led to the following conclusions: (1) seepage was occurring through loose, permeable fine sand layers ( floodplain deposits) that were now part of the levee because. of 3 W- 6873 -01 SHANNON &WILSON, INC. the above - referenced excavation, (2) laboratory tests indicated that the fines were mainly nonplastic silt (39 percent silt, 7 percent clay), (3) a Typar 3601 geotextile covered with 4- to 8- inch - diameter quarry spalls of one foot thickness was recommended along the landward side of the levee to act as a filter and reduce the potential for further piping. The logs of these 1983 borings are included as Appendix B. The borings are not located on Figure 2 because the stationing used in 1983 is not available. . However, we understand that all the borings were conducted within the current project limits. 1984 Construction of the above recommendations was completed. 1/10/90 High river event. Other high river events occurred in November 1986, 1988 and 1989, and December 1989, but it is reported that the levee adequately weathered these events. ti. 1/29/90 In an internal memorandum, SWM staff performed cursory estimates of seepage and resulting hydraulic gradients, concluding that flow in the river should be limited to 9,600 cfs along this reach to 'reduce levee piping and landward boiling and uplift. 1/31/90 In an internal memorandum, SWM staff noted the following observations from the January 10, 1990 high river event: (1) piping was more pronounced than in earlier floods and most pronounced in the area north of the 1984 rock blanket remedial work, although there was one piping area south of this rock blanket, (2) the area previously stabilized with a rock blanket performed well, allowing • seeping water to pass while retaining soil fines, (3) the ground behind the levee was "thoroughly softened" during the January 10, 1990 event such that walking produced undulations on the ground surface, (4) sand boils and seepage were ' observed at the foundation level behind the levee, and (5) riverward slope • slumping had occurred at least along a 150 -foot stretch of the river. The memorandum states that the Corps proposes two alternatives to remedy the problems: (1) place a rock blanket, filter and buttress behind the levee, or (2) overexcavate about 3 feet of material at the landward toe of the levee, place a geotextile and a perforated pipe in the bottom of the excavation followed by , free - draining rock. The latter was ultimately constructed in 1990. 2/6/90 In an internal memorandum, SWM staff note that an additional field investigation has shown that the integrity of the Segale Levee is worse than . previously thought, with piping outlets visible in the native silty sands exposed by the 1973 excavation. Additionally, it is noted at this time that the Corps strongly objects to a cut -off solution. 4 W- 6873 -01 z 1z • w- 6 O 0 w =. CO u_ w0 2 u_ cn ?. I- w: zI- I- 0 zE-- w uj Do 0—' 0 H w uj, Z L.1 U z 1 SHANNON &WILSON. INC. 2/9 -13/90 High river event. Water on the landward side of the levee was noted to be 10 inches below the ground surface. There was no piping and only . minor softening noted behind the levee, probably because the Corps held the flow to 9,600 cfs. 5/11/90 The Corps agrees to build a 700 - foot-long rock toe buttress on the riverward slope up to the ordinary high water line, and excavate and construct a rock toe on the landward side of the levee (see Figure 2 for location and Figure 3 for construction details). 2/20 -25/91 The Corps recorded observations during a high river event (10,200 cfs flow). For this flow, water in the river was about three foot higher than the landward toe. Muddy water conditions were noted in manholes beyond the landward toe, as well as soft and wet areas. The Corps concluded that the most susceptible area to levee failure was in the vicinity of the recently completed borings B -3 and B -6 (see Figure 2). 4.0 FIELD EXPLORATIONS, TESTING AND RECONNAISSANCE The site was explored by means of six borings drilled at the approximate locations shown on the Site and Exploration Plan, Figure 2. Three borings (B -1, B -2, and B -3) were drilled from the crest of the levee; the remaining borings (B -4, B -5, and B -6) were drilled at the west (landward) toe of the levee. The .borings were drilled on November 16 and 17, 1994, to depths ranging from 16.5 to 51.5 feet below the existing ground surface. Logs of the explorations are presented in Appendix A, along with details of the drilling program. Observation wells were installed in three boreholes upon completion of drilling for future measurement of groundwater levels and to conduct field permeability testing. The three wells were developed on November 16 and 17, 1994, and the field permeability testing was completed on November 18, 1994. Details showing the construction of the wells are presented on the boring logs in Appendix A. In addition, Appendix A presents a discussion of field permeability testing techniques and test results. Representatives of our firm conducted site reconnaissance on November 9, 1994 and January 12, 1995. The reconnaissance included walking the crest, slope, and toe of the levee, and noting features of the levee and any signs of distress or instability. 5 W- 6873 -01 • 1 1 1 1 1 1 1 1 ��iraroj • r SHANNON &WILSON, INC. 5.0 EXPLORATIONS AND TESTING BY OTHERS As part of our study, we reviewed the results of reconnaissance, explorations, testing, and studies by others. A description of these documents is presented in Section 2.0, in describing the chronological history of the project. The most noteworthy information from the previous studies were borings completed by King County in July 1983 and borings and laboratory testing completed by the Corps from February to July 1982. The results of explorations from the former study are included in Appendix B. Select borings and laboratory test results (grain size analyses and consolidated, undrained, triaxial tests) from the latter study are also included in Appendix B. Two of these latter borings (81 RD 131 and 81 RD 104) are located within the project limits, as shown on Figure 2. The remaining borings are located along the Green River but beyond the project limits. These latter borings are included because of the laboratory test results which were performed on samples from these borings. Based on the similarity between descriptions and grain sizes of samples from these borings with descriptions and grain sizes of samples from the current borings, the strength properties obtained by the Corps are assumed } o be similar to the strength properties of the soils along the project reach. 6.0 LABORATORY TESTING Soil samples obtained in the field were tested in our laboratory to aid in classifying the soils and to determine pertinent engineering properties for design. The laboratory testing program consisted of visual classification, moisture content determinations, Atterberg limits determinations, and grain size analyses. Details and results of the laboratory testing program are included as Appendix C to this report. 7.0 SUBSURFACE CONDITIONS, RIVER MORPHOLOGY, AND RECONNAISSANCE 7.1 Subsurface Conditions This section provides a summary of soil and groundwater conditions at the site. The approximate locations of current and previous borings are shown on Figure 2. In addition, Figure 2 presents a generalized profile of subsurface conditions at the site. 6 W- 6873 -01 .raw..- - v-+nFx.AFT•e!^`!+Y�Tn�!YMan n+!!'A�' !MISS :1f !1 ?' tM'1ki 10 ,k.mmarg fie+ .s.«rn,.+!:we�W.ulwiMMb — n. vrvct+ n< a�ssA5c �n9. 1TA' CL' A! �D:'! D .R!'SS7iTJ4t�R!T�f^-'>3+1".r°i. '^ z ' zw: 6_ 0 0' o- w0 J LL Q co Cluj z� 0. z I: LLJ U0 0 N;. w w° �LL ' U =: 0 z ti SHANNON &WILSON, INC. Subsurface conditions at the site can be characterized by two geologic materials: fill and alluvium. Fill was encountered in all the explorations. In the three explorations advanced at the crest of the levee, the fill consisted of medium dense to dense, moist, silty, gravelly SAND and sandy GRAVEL (levee fill). In the borings advanced at the landward toe of the levee, the fill consisted of moist, silty, sandy GRAVEL and COBBLES (berm fill). Underlying the fill, the borings encountered alluvium. In the upper about .20 to 30 feet, the alluvium generally consisted of very loose to loose (loose to medium dense in boring B -5), moist to wet below the groundwater table, clean to silty, fine SAND and fine sandy SILT. The percentage of silt varied with location and depth. For instance, at the same elevation, the percentage of silt was typically less in samples from the borings at the toe of the levee compared to the borings advanced at the crest of the levee. Also, the SAND layer in boring B-5 appeared to be cleaner and thicker than in the landward toe borings conducted to the north and south (borings B-4 and B -6, respectively). In addition, the silt content in the alluvium appeared to decrease with depth in most borings. The exceptions to the above generalization were in borings B-4 and B -6 where at least 10 feet of soft to medium stiff, wet, sandy, clayey SILT with scattered wood and organics was encountered in the bottom of the borings. In boring B -5, dense to very dense, wet, clean, fine to medium SAND was encountered below a depth of 33 feet, possibly underlain by a clayey SILT layer at 51 feet. The previous borings conducted by others'; (Appendix B) were generally consistent with subsurface conditions encountered in the current borings. 7.2 River Morphology A review of a 1906 survey (U.S. Army Corps of Engineers, 1907) indicates that the river was in its current channel at that time. However, we understand from SWM staff and from a review of documents provided by SWM'that the Green R.iver`has a history of migration within this reach. For example, several old•channels (pre-1898) are indicated by Dunne and Dietrich (1978) within the floodplain. Although no pre-1898 channels are identified within the project limits, the river has migrated across all of the floodplain so it is probable that the conditions encountered in boring B -5 resulted from an older channel in this area. 7 W- 6873 -01 z iI f- w UO. Nom, W= wo u- _ =d w zI z o. :o -. o1-• w ur H U; IL. o. • Z. U LH 0 r- C 1 iI• 1 1 7.3 Reconnaissance SHANNON 6WILSON, INC. The results of our reconnaissance along the riverside left bank and Levee indicate that two general conditions exist. Along the majority of the alignment we observed the riverside left bank and levee to consist of a heavily vegetated slope from the crest of the levee to the toe. However, from just above the mid -point elevation of the levee to the toe, we observed a series of slumps and setdowns with scarps typically ranging from 2 to 4 feet in height, but with maximum heights up to 6 feet. The slumps were generally obscured by the heavy vegetation along the slope, such as during our first reconnaissance on November 9, 1994. However, on our second reconnaissance of January 12, 1995, the vegetation had withered and been knocked down by recent high river flows, better exposing the magnitude and severity of slumping. This condition is caused by the lower strength floodplain sands and silts, described previously, and seriously threatens the levee stability. The sloughing results in an overall oversteepened slope along the alignment, except in the 700 -foot -long 1990 Corps repair area, where no sloughing was observed. In this latter area, however, large holes were observed in the slope. We understand, the 1990 Corps rehabilitation of this area consisted of a filter blanket overlain by riprap overlain by topsoil (Figure 3). It is possible that the holes observed in the slope are related to subsidence of the topsoil into the large voids of the riprap, as postulated by SWM staff. In fact, this was obvious in several of the holes observed. Other holes, however, may indicate the presence of burrowing . animals, as evidenced by horizontal, smoothly packed sides and animal droppings. We . could not determine their total length, but probing in some of these holes indicated a depth to more than 3 feet. Smaller burrow holes were observed on the riverward side to the north of the Corps repair area, just below the levee fill. These holes were less frequent than the holes observed in the 1990 Corps repair area, but may have been obscured by erosion from recent heavy rains. Even fewer burrow holes were observed to the south of the 1990. Corps repair area. The landward slope was covered with cobble -sized rock (quarry spalls) from the toe to either the mid - height of the levee or to the crest. Where not covered with rock, the slope was vegetated with grasses. Our reconnaissance did not indicate any signs of distress or slope instability on the landward slope; however, the smaller burrows also were observed along the landslide slope, generally within a few feet of the top of the rock toe. Animal burrows are often present in this type of material, and have led to rapid and serious levee failures. My.� �4' ��^' �f":^ ry�% i11 X.mrsTR %!e'�vv ✓.1^u'.'X•.•�' =m 8 z �z re w 00 N0, III I w • 0 <: co d. = I- Lux z o z� U 0. O - O I -' ww LL O .. z w U =. 0 z SHANNON &WILSON. INC. 8.0 ANALYSES OF EXISTING CONDITIONS Based on our understanding of project conditions, there are three areas of concern with the left bank and levee along this reach: (1) piping through the levee, (2) failure of the landward slope and toe by high uplift pressures, and (3) failure of the riverward levee slope by toe scour and during rapid drawdown. It is our understanding that the 1984 and 1990 repairs have resulted in a satisfactory remediation of the first potential failure mode, i.e., piping through the levee, by the placement of' a landward filter and rock blanket (Figure 3). • :)1 However, the presence of animal burrow is an uncorrected potential cause of piping. Although the 1990 plans do not indicate the presence of a filter on the levee slope, which .would be needed to control future piping, we understand from discussions with the Corps and SWM that a filter was placed. However, because we did not observe or encounter this filter, we recommend that the placement of this filter and its condition be verified as it is critical in controlling future piping. • Regarding the second concern, piping and boiling as observed by Corps and SWM personnel, the results of the explorations and laboratory testing suggest that piping and boiling may have occurred in the past;, at the toe. This conclusion is based on previous observations by SWM personnel (see Section 3.0) and may be supported by the significantly • cleaner SAND found at the toe as compared to under the crest of the levee, at the same elevation. It is our understanding that the rock toe placed at the landward toe of the levee was designed to alleviate the high uplift pressures and associated piping and bailing. However,, the borings suggest that the rock toe is probably embedded in the finer and less permeable fioodplain deposits and not deep enough to significantly reduce high uplift • pressures. Regarding the third potential failure mode, riverward slope slumping, we understand that past failures have occurred along this reach of the river. Most notably, a 700 -foot long area was repaired by the Corps in 1990 following a high flow event. Thus, there is a precedent for riverward slope instability to occur. • • jk The following sections discuss analyses related to seepage through and beneath the levee and its affect on levee stability. 9 W- 6873 -01 ii li f 1 1 1 1 1 i 1 1 F 1 1 1 1 1 1 1 SHANNON 6WILSON, INC. 8.1 Seepage Analyses - Existing Conditions Analyses for seepage through and beneath the levee were based on principles of two - dimensional flow. Because a graphical flow net would not be reliable for the complex geologic conditions noted at the site, an in -house finite element method (FEM) computer program was developed to simulate flow through the general subsurface conditions found at the site. This program estimates the equipotential lines (head) at various points within the subsurface soils and computes the total flow through the levee during the design river flow event. The program provides similar results to that obtained by drawing a flow net. The FEM program developed for this study uses triangular elements and requires the development of a mesh, in which different permeabilities can be assigned to different elements and boundary conditions can be assigned to nodal points. Permeabilities assigned to the 'elements were based on the field and laboratory testing as described in Appendices A and C, respectively. Two different sections were analyzed; one simulating, subsurface conditions encountered in borings B -2 and B -5, and the second simulating subsurface conditions encountered in borings B -3 and B -6. The results of the analyses are shown graphically on Figures 4 and 5, respectively. For. conditions similar to those encountered in borings B -2 and B -5, the results indicate a seepage rate of about 15 gallons per hour per foot of levee (Figure 4). For this case, the depth of the impermeable boundary was estimated based on conditions encountered in boring B -5. Because the thin layer of slightly clayey SILT encountered at the tip of the boring may not be continuous, a second trial was made by lowering the depth of the impermeable layer by an additional 10 feet. For this case, the seepage rate increases by about 50 percent. For the conditions encountered in borings B -3 and B -6, the results of our analyses indicate a seepage rate of about 3 gallons per hour per foot of levee (Figure 5). Although the above seepage rates are considered only low to moderate, of more importance is the high total head under the landward toe of the levee, especially under the conditions encountered in borings B -2 and B -5 (Figure 4). As shown on Figure 4, there is a total head of about 6.5 feet at the bottom of the sandy SILT layer under the landward toe of the levee. This high head is a direct result of the relatively low permeability of the sandy SILT . overlying the permeable SAND unit. As a result of this high head, it can be shown that the effective stresses in the sandy SILT are very low and the unit virtually becomes "quick." 10. z z1 z ce w. Q =. 0 N0, w= J H CO u- w 0 u. N d _. Z �. F- O' Z �- w Dc off'' 0 I— w uj u'O. ui z =, ol; w'. SHANNON FiWILSON. INC. The results of this analysis are consistent with previous observations of soft and pumping ground conditions in this area during high river flow events. Figure 4 also indicates that the shallow rock toe is ineffective for preventing boils along the levee toe at this location. 8.2 Stability Analyses - Existing Conditions Stability analyses were completed using the computer program PCSTABL5M. Table 1 summarizes the results for the various conditions analyzed under existing conditions. As indicated in the table below, some conditions are more critical for the riverward slope than for the landward slope, and vice versa. As such, not all conditions were analyzed for each slope, The analyses used a riverward slope of about 1.9H:1V and a landward slope of 2H:1V. _ These slopes are not the steepest noted in the cross - sections completed by SWM, and do not represent the undercut and failed riverward conditions, so stability is likely even lower in these critical sections. Subsurface conditions analyzed are composites of conditions encountered in the borings. Soil strengths assumed for our analyses are summarized on a cross - section through the levee, Figure 6. Soil strengths were based on the results of the SPT field testing, laboratory index tests, our experience, and the laboratory tests results of similar soil types conducted by the Corps on samples' from borings in the Green River area (Appendix B). For all steady state seepage cases for the riverward slope, a horizontal water table was assumed because of the possible nine -day maximum flow event. The seismic event is based on a pseudo - static . evaluation using a seismic coefficient of 0.10, in accordance with the Corps Engineering and Design Manual, EM 1110 -2 -1902. The rapid drawdown event is based on the assumption that there is no pore water pressure dissipation during drawdown from the maximum river stage (elevation 30.7 feet) to a flow of 2,000 cfs (elevation 16 feet), the parameters provided by SWM. This rapid drawdown condition is a conservative assumption for past events because the flow has not reduced this rapidly in the past, but it is the criteria under which the Corps is allowed to operate Howard Hanson Dam. Additionally, the analysis is somewhat conservative as it is based on an instantaneous drawdown of the river, whereas the actual drawdown is time- dependent and would allow for some dissipation of the porewater pressure. Because the analyses are somewhat conservative, a FS of 1.0 could be used for design. W- 6873 -01 11 •xrGrne:x o13rrva rvattattny..ro- •.• ,7;r.:e ms^mr^,w!•n rtrxrx rv!wYv.!nw+.r fir^' n„ �*••�- ,r- <•••e•er�++w..,+ -...,. f 1 1 1 1 1 1 TABLE 1 SUMMARY OF STABILITY ANALYSES FOR EXISTING CONDITIONS :,:;;y:a :.': >} : %:i•:': �} :i:Ci:: i' {iii::::!' {;:: ::FSo:: ver: arc1:��S : .: } }::i : 1vLnun. _ Static - River Level 5 Feet Below Ordinary High Water2 1.1 1.7 1.4 Static - .River Level at Ordinary High Water , . 1.7 • 1.4 Static - River Level 5 Feet Above Ordinary High Water 1.0 1.7 1.4 Static - River Level 10 Feet Above Ordinary High Water 1.1 1.6 1.4 Steady State Seepage for Maximum River Stage N/C 1.04 • 1.4 Pseudo -static (Seismic)3 0.7 f 1.4 1.0 Rapid Drawdown 0.7 N/C .1.0. N/C = Not critical 1 Per Corps EM 1110 -2 -1902. • 2 Ordinary High Water Level assumed at 10 feet above the toe of the riverward slope. 3 Pseudo -static stability analyzed for ordinary high water level river stage. 4 The equipotential lines from Figure 4 were used in the stability analysis. For all steady state seepage cases for the riverward slope, a horizontal water table was assumed because of the possible nine -day maximum flow event. The results of the analyses indicate marginal stability of the riverward slope under mid -level river flows, and instability during a seismic event and under rapid drawdown conditions. In all cases, the FS values are below minimum recommended values. For the landward slope, stability is adequate under all cases, except under steady' state seepage conditions for the maximum river stage. As indicated in Figure 4, the high heads in the upper 10 feet below the landward toe are the cause of this low safety factor. 12 z z U0' w =. J 1 w 0 u- z �. 0. w~ n o o N, • i•- tu u. .. z• U N. z z 0 —, m j . 9.1 General z.. 0 _ t; Based on the results of subsurface explorations and engineering analyses, we present the 11 o following conclusions: — 0' o c (1) The landward slope is potentially unstable under current conditions and rnm --iz ;� maximum river flows because of the high uplift pressures under the landward ff toe. A remedial solution that addresses relief of these high uplift pressures is rn - recommended. AN �'. f &' ±' (2) 0m co m cn ':v 00 c ITI :-I •...+•.... nxak: ikii�6i5F' SFSiiii'.( i. istiab�- VnS:L.Y•"•yN.au,:u..'w.vY.r:ti :�•'+w »:: SHANNON &WILSON, INC. In addition to the stability analyses completed above, an evaluation was made for the potential for liquefaction of the foundation soils during a large earthquake event. Consistent with our experience on similar projects in the area, we analyzed the potential for liquefaction of the foundation soils using a maximum ground acceleration of 0.3g (percent of gravity). Based on the low SPT blow counts recorded in the alluvium in the current borings, our analyses indicate that liquefaction would be likely in a number of samples if saturated (i.e., below the groundwater table). As such, the possibility of liquefaction would be somewhat dependent on the river stage when the earthquake occurs. However, even under low river stages, it is our opinion that there is a high probability of liquefaction of deeper sand and sandy soils. Liquefaction can be expected to result in lateral spreading and /or complete levee breach. 9.0 DESIGN RECOMMENDATIONS Under current conditions, much of the riverward slope may be potentially unstable during a rapid drawdown event or design earthquake. Additionally, the riverward slope has a static FS value under intermediate river stages that is considered to be marginal and below that accepted under most guidelines (for instance, Corps EM 1110 -2 -1902, Table 1). This conclusion is supported by the widespread existing instability observed along this reach during our reconnaissance. A remedial solution that increases riverward slope stability is recommended. This solution . would include the entire project reach except for the 700 -foot -long .1990 Corps repair area. We understand that at this latter location stability is probably adequate because construction of the measures shown in Figure 3 essentially involved reconstructing the entire riverward slope with compacted pit run sand and gravel. However, the Corps should confirm the adequacy of stability in this reach. 13 W- 6873 -01 Micro Com Systems Washington Ltd. 12608 -B INTERURBAN AVENUE SOUTH TUKWILA, WA 98168 TEL (206) 248 -3191 FAX (206) 248 -3313 ATTENTION The next image may be a duplicate of the previous image. Other: DrOY-c (-eSfi • �. , �.e .w.,., 9 www.microcomsys.com SHANNON EWILSON. INC. In addition to the stability analyses completed above, an evaluation was made for the potential for liquefaction of the foundation soils during a large earthquake event. Consistent with our experience on similar projects in the area, we analyzed the potential for liquefaction of the foundation soils using a maximum ground acceleration of 0.3g (percent of gravity). Based on the low SPT blow counts recorded in the alluvium in the current borings, our analyses indicate that liquefaction would be likely in a number of samples if saturated (i.e., below the groundwater table). As such, the possibility of liquefaction would be somewhat dependent on the river stage when the earthquake occurs. However, even under low river stages, it is our opinion that there is a high probability of liquefaction of deeper sand and sandy soils. Liquefaction can be expected to result in lateral spreading and /or complete levee breach. 9.1 General 9.0 DESIGN RECOMMENNDATIONS Based on the results of subsurface explorations and engineering analyses, we present the following conclusions: (1) The landward slope is potentially unstable under current conditions and maximum river flows because of the high uplift pressures under the landward toe. A remedial solution that addresses relief of these high uplift pressures is recommended. (2) Under current conditions, much of the riverward slope may be potentially unstable during a rapid drawdown event or design earthquake. Additionally, the riverward slope has a static FS value under intermediate river stages that is considered to be marginal and below that accepted under most guidelines (for instance, Corps EM 1110 -2 -1902, Table 1). This conclusion is supported by the widespread existing instability observed along this reach during our reconnaissance. A remedial solution that increases riverward slope stability is recommended. This solution . would include the entire project reach except for the 700 -foot -long .1990 Corps repair area. We understand that at this latter location stability is probably adequate because construction of the measures shown in Figure 3 essentially involved reconstructing the entire riverward slope with compacted pit run sand and gravel. However, the Corps should confirm the adequacy of stability in this reach. 13 W- 6873 -01 z z r4 2 oo (/) o, w= J H N W O ga =• d 1_ i z 1- o z1- w U O -, O H W W: 1- 0 r- e- - wz Uu H z: • • z 1 SHANNON•&WILSON, INC. A discussion of engineering solutions to address each of the above conclusions is provided below. Methods of mitigating liquefaction potential are generally accomplished using soil improvement techniques, such as deep dynamic compaction, drainage with stone columns, grouting, and/or soil mixing. However, the cost of these measures would be substantial. Considering that the probability of an earthquake occurring during a high river event is low and the levee is only 10 feet•high, it is probably not economical to mitigate for liquefaction potential. Additionally, because the river is regulated by the upstream dam, it may be possible to hold flows down to acceptable levels in the event of levee failure. Also, there likely are weak links elsewhere in the levee system that may, not justify mitigating such•a small reach of the river. Consequently, mitigation of potentially liquefiable soils is not discussed in this report. Hence, there is a risk of failure associated with liquefaction, which is not included in our design recommendations. If SWM considers liquefaction mitigation to be important for this reach, additional solutions can be recommended. 9.2 Landward Slope Considering land constraints, costs and engineering effectiveness, it is our opinion that the stability of the landward slope could be increased to an acceptable level by berms and drainage. In our opinion, the most cost- effective solution for increasing stability is by adding a stabilizing drainage berm. In this way, the total unit weight of the berm material can be counted on to resist uplift pressures. Thus, from the downstream end of the project to the end of the elevated parking lot, we recommend that the ditch behind the levee be filled with a free - draining granular material. Based on the elevation of the elevated parking lot, this would allow about 5 feet of fill to be placed. Because an adequate filter is reported to have been placed against the face of the levee during previous remedial work, the gradation of material used to fill the ditch is not critical and a cost- effective source, such as pit-run sand and gravel, can be utilized provided it has a high permeability. Sand and gravel with a small percentage of fines (less than 5 percent) would meet this criterion. Prior to placing the fill, a perforated drainage pipe should be laid on or just below existing grade and surrounded by a higher permeability material (such as pea gravel or washed gravel) to provide drainage. Along this reach, we recommend designing the pipe for 30 gallons per hour per foot of levee, which includes a 100 percent overdesign and assumes the most permeable soil conditions (borings B -2 and B -5) along the entire reach. 14 z w 2 Uo N0, CO W. -JI- CO IL w0 gZi =d �w z= I-- o z� U0 o- 0 I- i 0: — LZ iui 0- = o� z SHANNON &WILSON, INC. Upstream of the elevated parking lot (behind the buildings) we understand that it is not possible to construct a stabilizing berm because the adjacent landowner needs to keep the land elevation low in order to permit possible future rail access behind the buildings. Therefore, along this reach, we recommend a drainage system which can relieve the high uplift pressures in the permeable SAND unit such that an adequate FS against slope instability can be obtained. There are two types of drainage systems that could be employed. The first is a trench with a collector pipe 5 feet below the ground surface that would be excavated near the toe of the landward slope and would run continuous. upstream • of the elevated parking lot. The second is a system of closely spaced relief wells, also installed-at the landward toe of the levee. The advantage to a trench drain is that it is continuous and cost- effective for shallow to moderate depths.' The disadvantage to a trench drain, however, is that it can become expensive at greater depths because of the need for shoring, and it is more difficult to vary. the depth during installation. At boring B -5, the relatively permeable SAND unit was located 11.5 feet below the ground surface. In order to provide adequate depth for relief, at least a 15- foot -deep trench would have to be constructed. However, because of the variability of conditions .encountered in the borings, a 15 -foot depth may not reliably intercept the permeable unit along the entire reach and a 20- to 25- foot -deep trench may be required. As an alternative, we recommend the use of a relief well system, which has the advantage of • being able to easily adjust the depth of the well during installation rand is considered to be a more reliable uplift control system. The relief well depths can vary to fit subsurface conditions and can penetrate deeper into the permeable unit to provide more positive uplift pressure dissipation. We understand from •a preliminary cost estimate completed by SWM that a relief well system is also more economical. Several analyses were completed with various well spacing, diameter, and penetration. The results of our analyses suggest that to increase the FS to at least 1.4 under maximum river stage steady state seepage conditions, 18- inch - diameter drains installed on 20 -foot centers and extending to a depth of about 25 feet below the landward toe should be installed. Additionally, our analyses assumed that the wells would be drained at a depth of about 5 feet, in order to provide more positive resistance against the uplift pressures. The resulting equipotential lines are shown in Figure 7 for the most critical location (borings B -2 and B -5). The relief well system should be designed to handle at least 1,300 gallons per hour 15 W- 6873 -01 z ~ w JU Uo co W = J H: CO LL, w0 J u-<. a I- Ili Z i-. t- o Z I- M 0 2'`. o f-. w w` U: wp —o ..z w z per well. This includes a 100 percent overdesign on the calculated seepage rate and assumes the most permeable soil conditions (borings B -2 and B -5) along the entire reach. A typical detail of a relief well is presented on Figure 8. A well installation includes a boring to facilitate installation, a perforated pipe to allow entrance of groundwater, a filter to prevent loss of foundation material, a riser pipe to conduct water to near the ground surface; impermeable backfill to prevent recharge of the formation by surface water, and a cover to prevent damage and vandalism. As shown on Figure 8, the wellhead should be located above the ground surface to prevent backflooding from muddy surface water. Additionally, the wells should be protected against vandalism and damage by a secure cover or gate. Each well should have a lateral drain to connect to a header pipe where the entire drainage system would be routed to a convenient pumping location. In our opinion, the activity' of rodents may be the most insidious condition that exists in the levee because there is no way to determine to what extent the rodents have damaged the levee. We observed burrows on both sides of this 'levee. These burrows reduce the lengths of the seepage paths, concentrate the seepage, and.,encourage piping. Often there is no advance warning of danger, and piping because of rodent burrows has caused many levee and dam failures. Rodents can be discouraged from burrowing by incorporating gravel fill slope protection. Generally, about 2 feet of sandy gravel placed on the slope is adequate for control provided it has a coarse gradation. We recommend a well - compacted 2 -foot minimum thick gravel section on the landward slope from the top of the rock toe to the levee crest. The gravel should have maximum sizes no smaller than 3 inches and contain between 25 and 35 percent sand, primarily medium and coarse- grained. No more than 3 percent should pass the No. 200 sieve (wet sieve). 9.3 Riverward Slope The typical and most economical technique for increasing the stability of a riverward slope is flattening the slope. Flattening the riverward slope could be accomplished by: (1) reducing the crest width, (2) setting back the top of the levee, (3) placing fill into the river, or (4) a combination of the above. Based on our reconnaissance of the site, it is our opinion that the survey cross - sections provided for our review are not representative of actual topographic conditions as they presently exist and additional surveying should be 16 z �w 6 UO CO CU J= w0 1a = d. I- _ z� I- o. w~ uj 2 0 0, cf- wLu �U LI a wz UN 0 z SHANNON &WILSON, INC. completed. As such, it is difficult to determine the extent of slope flattening that is possible. From discussions with SWM personnel, we understand that the 12 -foot -wide levee crest is desired from a maintenance standpoint. Along the riverward side, it may be possible to set the levee back and rebuild the landward face. However, along the landward side of the levee, developed property would restrain any setback. Regarding the placement of fill into the river, we understand that environmental and fisheries agencies resist such placement. However, along this reach of the river, the toe of the original slope has been undermined, and was previously located riverward of its present position. Thus, the final slope that can be achieved will depend on how the toe of the river is defined, and if allowance is made for filling a previously eroded toe. Based on the available data, we assume that it will be possible to reconstruct the riverward slope at 2H: IV. • For this slope, our stability analyses indicate that the minimum recommended FS values in Table 1 would not be achieved. To increase the strength of materials and FS, we recommend inclusion of a compacted, clean sand and gravel shell to . buttress the finer - grained alluvial soils, as shown in Figure 9. Placement of this sand and gravel fill will need .to extend the full length of the project, except for the 700 -foot -long 1990 Corps repair area. The sand and gravel will provide the added benefit of deterring future burrowing by rodents (althoug , the exteneof damage done by previous burrowing will not decrease). We conclude that in the :course of rebuilding the existing sloughed riverward slope, 15 feet of horizontal excavation will be required at the toe of. the slope (as measured from the future toe location), as shown by the configuration indicated on Figure 9. Our analyses indicate that this reconstructing will provide an FS of 1.3 for static conditions and 1.0 for seismic and rapid drawdown conditions. Although the 1.3 value is below the recommended value of 1.4, it may be acceptable considering that the increase in the existing stability is 30 percent (i.e., from an FS of 1.0 to 1.3). If additional slope flattening can be achieved, the FS would increase even higher. The riverward slope should be protected by a riprap toe to the ordinary high water level and by a blanket of topsoil and vegetation above this elevation (unless analyses indicate that more positive protection from river velocities is required above the ordinary high water line). Because of the gravel fill, no filter will be necessary, but gravel fill will need to extend to the full depth of the toe to a thickness of not less than 2 feet. The proposed riprap toe protection is necessary because lesser methods would be subject to erosion and would not protect the integrity of the bank protection material. 17 W- 6873 -01 i1• 11 11 11 11 11 I1 11 I1 I1 I1 I1 I1 II I1 I1 II 1 1 SHANNON &WILSON. INt The additional surveys recommended above are needed for final design of the levee section and slope protection. The toe design is dependent on the riverbed surveys; the cross C sections are necessary for stream velocity and scour computations, as well as to verify riprap size requirements. 10.0 CONSTRUCTION CONSIDERATIONS The preceding sections of the report include comments regarding excavation, earthwork, an related geotechnical aspects of the proposed project. The preliminary recommendations contained herein are not intended to dictate construction methods or sequences. Instead they are furnished to help designers identify potential construction difficulties and problems related to earthwork plans and specifications. Prospective contractors for the project must evaluate potential construction difficulties and problems on the basis of their own knowledge and experience in the local area, and on the basis of similar projects in other localities, taking into account their own proposed construction methods and procedures. The quality and future performance of relief wells is directly related to the installation procedure. Contractors should have a minimum of three year's experience in installing large - diameter (greater than 12 inches) wells. Experience with drilled shaft installation should not be considered as equivalent experience as the function and installation are different. Relief wells can be installed using a variety of drilling methods, including reverse circulatory rotary, bailing and casing, augering, and standard rotary. The method chosen :t for this project largely can be Contractor chosen. A limitation, however, is that a bentonite based drilling fluid should not be allowed. Instead, a self - destructing drilling fluid (such as Revert) should be used to reduce the possibility of sidewall caking.. Care should be taken during drilling to reduce sidewall caving. In installing the relief wells, the Contractor . should consider potential difficulties associated with drilling through the gravel- and cobble - size rock toe placed by the Corps in 1990. After the well hole is completed, the pipe and filter material should be placed to provide the, minimum annulus indicated in Figure 8. Placement of the filter material should be done in a 18 W- 6873 -01 a s z. ~uJ c4 00 N0. J � (f) u_ uJ O -. co I- _. z�. Z o, w w: co F-- = w` -o Z w co �_. 0 z.... SHANNON &WILSON, INC. manner to reduce segregation. After the installation is completed, each well should be developed by pumping tests. Permanent records should be kept of the drilling procedure, soils encountered, installation, and development. Because the soils along the proposed installation area vary considerably, the actual depth will need to be determined in the field. Additional details regarding relief well installation and development are available in Corps EM 110 -2 -1913, Appendix D. It should be noted that the pervious water - bearing sands are capped with silt deposits and silt zones. The filter for the sandy zones will be too coarse for a proper silt filter; therefore, silt zones should be protected with a bentonite seal and blank Pipe. 11.0 LIMITATIONS This report was prepared for the exclusive use of King County SWM Division and their assigned agents for specific application to the design of the project at this site as related to the geotechnical aspects discussed herein. The data and report should be provided to prospective contractors for their information, but our report, conclusions, and interpretations should not be construed as a warrantr,of subsurface conditions included in this report. Within'the limitations of scope, schedule and budget, the analyses, conclusions and recommendations presented in this report were prepared in accordance with generally accepted professional geotechnical engineering principles and practice in this area at the time this report was prepared. We make no other warranty, either express or implied. The conclusions and recommendations were based on our understanding of the project as described in this report and the site conditions as observed at the time of our explorations. If there is a substantial lapse of time between the submittal of our report and the start of work at the site, or if conditions have changed due to natural causes or construction operations at or near the site, it is recommended that this report be reviewed to determine the applicability of the conclusions and recommendations considering the changed conditions and time lapse. Erosion, aggradation, and deposition are a dynamic and continual process along rivers ' and the final design should consider the possible changes that have occurred since the completion of this report. W- 6873 -01 z mow; 00 w= • LL w o, J lL Q co W .z 0: z�- ▪ D .0 oi w w .1-- U c!2` 0 •z II iI I1 I1 11 11 I1 jl 1 11 11 1 11 11 I I I1 1 1 The analyses, conclusions, and recommendations presented in this report are based on site conditions as they presently exist and assume that the explorations, both current and previous, are representative of the subsurface conditions in the vicinity of the site, i.e., the subsurface conditions are not significantly different from those encountered in the explorations. Unanticipated conditions are commonly encountered and cannot be fully determined by merely taking soil samples or making explorations. Such unexpected conditions frequently require that additional expenditures be made to achieve a properly constructed project. Therefore, some contingency fund is recommended to accommodate such potential extra costs. If during construction, subsurface conditions different from those encountered in the explorations are observed or appear to be present, we should be advised at once so that we can review those conditions and reconsider our recommendations where necessary. The scope of our services did not include any environmental assessment or evaluation • regarding the presence or absence of wetlands or hazardous or toxic materials in the soil, surface water, groundwater or air, on or below die site or for the evaluation or disposal' of contaminated soils or groundwater, should any b6 encountered. We recommend that Shannon & Wilson, Inc. be retained to assist in the final design as well as to review the geotechnical aspects of plans and specifications that pertain to earthwork construction to determine that they are in accordance with our recommendations. Because geotechnical design recommendations used as a basis of design are based on limited numbers:,;, of explorations and tests, SWM should recognize the potential need for adjustment in the field. It would be in the best interest of SWM to retain Shannon & Wilson, Inc. to monitor the geotechnical aspects of construction, particularly excavations, drainage and earthwork. This monitoring would allow us to evaluate the subsurface conditions as they are exposed during construction and to determine that the work is accomplished in accordance with good. construction practice and in accordance with our recommendations. 20 • SHANNON &WILSON, INC. Shannon & Wilson has prepared Appendix D, "Important Information About Your Geotechnical Report," to assist you and others in understanding the use and limitations of our report. SHANNON & WILSON, .INC. Sandeep Puri, P.E. Senior Engineer DRAFT SUBJECT TO REVISION DATE: Z— /3 -FS/./ Gregory R. Fischer, P.E. Leland B. Jones, P.E. Principal Engineer Vice President SP:GRF :LBJ /lkd 2- 13- 95/W6873 -01.12PT/W6873- 1kd/dgw .1.15'. .. 21 W-6873-01 1 •, z • U o` .W w; • •w•oi • LL Q • • a =t w • • ;z�:. moo: .z • w wt • • U 0i := : F-. V. • • Oi faZ 177{. King County Segale Levee Repair Drainage Improvement PART 1 - 6ENl:i:AL 1.01 Reference Sections 1.02 Project Drawings SECTION 00950 - DRAWING INDEX Sheet I - Cover Sheet Sheet 2 - Plan and Profile Sheet 3 - Plan and Profile Sheet 4 - rump Station Sheet 5 - Force Main and Details Sheet 6 - Details Sheet 7 - Electrical Plans and Elevations Sheet 8 - Electrical Details END OF SECTION Section 00950 Drawing index z re al' 2 King County Section 00901 Segale Levee Repair Drainage Improvement King County Addendum Sample Form SECTION 00901 - KING COUNTY ADDENDUM SAMPLE FORM INVITATION TO BID Purchasing Letterhead Bid Number DATE ISSUED: TITLE: Bid Opening Date ALL BIDS MUST BE SUBMITTED NO LATER THAN 2:00 P.M. EXACTLY Buyer /Contract Specialist Requisition Number Addendum No. This Addendum is issued to revise the original Invitation to Bid Number (ITB #) , dated , as follows: 1. Bid opening date shall remain the same; (day)' , (date). at 2:00 p.m. exactly. OR 1 Change the bid opening date from (date) to (day) , (date) , no later than 2:00 p.m. exactly. 2. (Insert itemized Addendum items as applicable.) TO BE ELIGIBLE FOR BID AWARD THIS ADDENDUM MUST BE ACKNOWLEDGED ON PAGE NUMBER) , SECTION (NUMBER) , OF THE FORM OF BID. END OF SECTION • 00901 -1 re w 0 00 co o, W w: w0 a` mow;. z� 1— 0: Z I- ww U.�. U N; 0 z • King County Section 00900 Segale Levee Repair Drainage Improvement Addenda and Modifications SECTION 00900 - ADDENDA AND MODIFICATIONS PART ? - GENERAL 1.01 Related Documents A. Section 00300 Form of Bid 1.02 Addenda Addenda will be considered a part of this Project Manual and the Contract Documents. PART . 2 - ADDENDA FORMAT Addenda will be issued in the following format: (See Attached Invitation to Bid Sample Addendum) END OF SECTION 00900 -1 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.08 Contractor's Liability Insurance (Continued) 1'. V111G1 L.Ullllii�.:l 1 "lU� 1J1U11J 3. Verification of Coverage The Contractor shall furnish the County with certificates of insurance and bind coverage on its behalf. The certificates and endorsements for each insurance policy are to be on forms approved by the County and are to be received and approved by the County prior to the commencement of activities associated with this Contract. The County reserves the right to require complete, certified copies of all required insurance policies at any time. Subcontractors The Contractor shall include all subcontractors as insureds under its policies, and/or shall furnish separate certificates of insurance and policy endorsements for each subcontractor as evidence of compliance with all insurance requirements of this Contract. 5. Work Site Safety The Contractor shall have the "right to control" and bear the sole responsibility for the job site conditions, and job site safety. The Contractor shall comply with all applicable Federal, State, and Local safety regulations governing the job site, employees, and subcontractors. The Contractor shall be responsible for the subcontractor's compliance with these provisions. 6. Property Insurance - County Provided Builders' Risk Coverage The Contractor will be added as an additional insured to the County's property policy for the purposes of Builders' Risk coverage; however, the Contractor will be responsible for the County's property policy deductible (currently $25,000). 1.09 Article 40, Compliance with Public Works Wage Rates, Fringe Benefits, Etc. Required- Contractor to File Affidavit of Wage Rates and Contingent Fees Add as Paragraph E., the following language after the last paragraph of Article 40: E. In compliance with the requirements of RCW 39.12, a list of the hourly prevailing wage rates is incorporated in and made part of these contract specifications. END OF SECTION 00800 -9 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.08 Contractor's Liability Insurance E. • Other Insurance Provisions (Continued) z 2. To the extent of the Contractor's negligence, the Contractor's insurance coverage shall be primary insurance as respects the County, its officers, f- z et 2 officials, employees, and agents. Any insurance and/or self-insurance maintained by the County, its officers, officials, employees, or agents shall not J v contribute with the insurance of the Contractor who is the Named Insured or U O benefit the Contractor as the Named Insured in any way. r co °:' w =. 3. The Contractor's insurance shall apply separately to each insured against co LL whom a claim is made and/or lawsuit is brought, except with respect to the w O` limits of the insurer's liability. g> u. J 4. Coverage shall not be suspended, voided, canceled, reduced in coverage or in = a limits except for the reduction of the aggregate by paid claims until after forty- E— _, five (45) days prior written notice, return receipt requested, has been given to ? the County. z �- U • � ;O U; 0I- I IL O. .ill Z' U -. _. 0 H: z F. Other Contract Provisions 1. Deductibles and Self - Insured Retentions Any deductibles or self - insured retentions must be declared to, and approved by, the County. The deductible and/or self - insured retention of the policies shall not limit or apply to the Contractor's liability to the County and shall be the sole responsibility of the Contractor. Acceptability of Insurers a. Insurance is to be placed with insurers with a Best's rating of no less than A:VIII, or, if not rated with Best's, with minimum surpluses the equivalent of Best's surplus size VIII. b. If at any time of the foregoing policies shall be or become unsatisfactory to the County, as to form or substance, or if a company issuing any such policy shall be or become unsatisfactory to the County, the Contractor shall, upon notice to that effect from the County, promptly obtain a new policy, and shall submit the same to the County, with the appropriate certificates and endorsements, for approval. 00800 -8 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.08 Contractor's Liability Insurance (Continued) L. lvllutmnu111 Scope ui insuLuee 5. Umbrella or Excess Liability zz When Umbrella and/or Excess Liability policies are used in connection with re W primary underlying General Liability policies to meet the required limits of 6 D liability, the Umbrella and/or Excess Liability policies shall be in force 0 with the primary insurance policy, have the•same expiration date, co ❑ . and provide coverage as broad as the primary policy, with a "drop down" ' W = provision. -J f-; co LL: W 0, 6. Products and Completed Operations Coverage 2 The life of this Contract, "Products'and Completed Operations" coverage for co , the protection against bodily injury and property damage claims arising from z a this hazard, at a limit acceptable to the County. ~ _' z F.. D. Minimum Limits of Insurance (Project specific - Verify with Risk Management) z0 The Contractor shall maintain limits no less than, for: v ,. Dr::: 1. General Liability: $ combined single limit per occurrence for .ilu w bodily injury, personal injury, and property damage, and for those policies , - 9; with aggregate limits, a $ aggregate limit. p ui Z' 2. Automobile Liability: $ combined single limit per accident for v =! bodily injury and property damage. 0 /—; z 3. Workers' Compensation: Statutory requirements of the State of residency. 4. Employers Liability or "Stop gap" coverage: $ 5. Umbrella or Excess Liability Coverage: $ 6. Products and Completed Operations: $ Other Insurance Provisions The insurance policies required in this Contract are to contain, or be endorsed to contain, the following provisions: 1. The County, its officers, officials, employees, and agents are to be covered as additional insureds as respects: liability arising out of activities performed by or on behalf of the Contractor in connection with this Contract. 00800 -7 cui'c�•. • ,w.... King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.08 Contractor's Liability Insurance (Continued) L. 1�'11111i11U1i1 3 U1. �. L. 111:JUi ULJ..L Coverage shall be at least as broad as: 1. General Liability Insurance Services Office form number (CG 00 01 Ed. 11 -88) covering Commercial General Liability. 2. Automobile Liability Insurance Services Office form number (CA 00 01 Ed. 12 -90) covering Business Auto Coverage, symbol 1 "any auto "; or the combination of symbols 2,8, &9. 3. Workers' Compensation Workers' Compensation coverage, as required by the Industrial Insurance Act of the State of Washington. The Contractor is advised that work on or adjacent to water may require insurance coverage in compliance with: a. Longshore and Harbor Workers Compensation Act (administered by the U.S. Department of Labor), -or- State Industrial Insurance (administered by the Washington State Department of Labor), -or- e. Both. 4. Employers Liability or "Stop -Gap" The protection provided by the Workers' Compensation policy Part 2 (Employers Liability) or, in states with monopolistic state funds, the protection provided by the "Stop Gap" endorsement to the General Liability policy. 00800 -6 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.07 Article 26, Hold Harmless Clause (Continued) 1 \�pIitee lllc c:�i�llllb pillaglap11 ii.ig r.1ueie. D. The Contractor.shall protect, defend, indemnify, and hold the County, its agents, employees, officials, and officers harmless from, and shall process and defend at its own expense any and all claims, demands, suits, penalties, losses, damages, or costs of any kind whatsoever (hereinafter "claims ") brought against the County arising out of or incident to the execution of, performance of, or failure to perform this Contract; PROVIDED, however, that if such claims are caused by or result from the concurrent negligence of the Contractor, its agents, employees, and/or officers and the County, it agents, employees, and/or officers, this Article shall be valid and enforceable only to the extent of the negligence of the Contractor, its agents, employees, and/or officers; and, PROVIDED FURTHER, that nothing in this Article shall require the Contractor to indemnify, hold harmless, or defend the County, its agents, employees, and/or officers from any claims caused by or resulting from the sole negligence of the County, its agents, employees, and/or officers. The Contractor's obligation under this section shall include indemnification for claims made by the Contractors own employees or agents. For this purpose, the Contractor, by mutual negotiation, hereby waives, with respect to the County only, any immunity that would otherwise be available against such claims under the Industrial Insurance provisions of Title 51 RCW.' In the event the County incurs any judgment, award, and/or cost arising therefrom including attorneys' fees to enforce the provisions of this Article, and such fees, expenses, and costs shall be recoverable from the Contractor. 1.08 Contractor's Liability Insurance Add the following insurance requirements: No Contractor shall commence work under this Contract until he has obtained all the insurance required under this Article, and such insurance has been approved by the County; nor shall the Contractor allow any subcontractor to commence work on a subcontract until such subcontractor has obtained insurance similar to that required for the Contractor under this Article. A. Insurance Requirements: By the date of execution of this Contract, the Contractor shall procure and maintain for the duration of this Contract insurance against claims for injuries to persons or damages to property which may arise from, or in connection with the performance of work hereunder by the Contractor, its agents, representative, employees, and/or subcontractors. The cost of such insurance shall be paid by the Contractor. B. For All Coverages Each insurance policy shall be written on an "Occurrence" form only. 00800 -5 •yin': s,Pxm {tii +ic, Tom. tNry!tta5n Q �w 2 UO CO w w= J I- CI) O Lu ga- LL < a 1 z z o. w 2o Lu U 0 I--' wW IE O • Z: -' O z King County Segale Levee Repair Drainage Improvement Supplementary Conditions Section 00800 1.05 Article 17, Delays and Extension of Time (Continued) Insert the following paragraphs after the first paragraph of Article 17: D. The Contractor shall not be entitled to any claim for extra compensation or damages because of unavoidable delays, but may be entitled to an extension of time by such number of working days or parts thereof had the work been diligently prosecuted. In making any request for extension of the contract time, the Contractor must demonstrate that the delayed activity was on the critical path on the contract schedule and that the delayed activity did, in fact, result in the delay of subsequent activities on the critical path. No time extension will be allc:•wed if it is found that other activities under the Contractor's control caused an earlier or concurrent delay. 1.06 Article 19, Warranty and Guarantee of Work Add the following sentence to the end of the first paragraph in Article 19: The Contractor shall maintain the insurance required in Article 27 and paragraph 1.08 during the period required to make corrections on the premises. 1.07 Article 26, Hold Harmless Clause Replace the existing paragraph with the following Article: A. In providing services under this Contract, the Contractor is an independent contractor, and neither the Contractor nor its officers, agents, or employees are employees of the . County for any purpose. The Contractor shall be responsible for all federal and /or state tax, industrial insurance, and Social Security liability that may result from the performance of and compensation for these services and shall make no claim of career service or civil service rights which may accrue to a County employee under state or local law. B. The County assumes no responsibility for the payment of any compensation, wages, benefits, or taxes to or on behalf of the Contractor, its employees and/or others by reason of this Contract. The Contractor shall protect, indemnify, and save harmless the County, its officers, agents, and employees, from and against any and all claims, costs, and/or losses whatsoever occurring or resulting from (1) the Contractor's failure to pay any such compensation, wages, benefits or taxes; and/or (2) the supplying to the Contractor of work, services, materials, and /or supplies by the Contractors employees or other suppliers in connection with or in support of the performance of this Contract. C. The Contractor further agrees that it is financially responsible for and will repay the County all indicated amounts following an audit exception which occurs due to the negligence, intentional acts ancl!or failure for any reason to comply with the terms of this Contract by the Contractor, its officers, employees, agents, and/or representatives. This duty to repay shall not be diminished or extinguished by the prior termination of the contract pursuant to the duration of Contract, or the termination Section.1.07Article 26, Hold Harmless Clause. 00800 -4 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.04 Article 14, Changes in the Work ... ��.,.. . . .. . L.... . VL 1.s .. U.�. ice: ♦ \, 1 J 1... 111 lJ. 's 1v LL L.VJ l L):.1J1J 7. Subcontractors: (Continued) z b. The Contractor's total markup for Overhead and Profit on w subcontractor work shall not exceed ten percent (10 %) of the first 6 D $10,000 and five percent (5 %) of such costs in excess of $10,000 of i 0 the subcontractor's cost covered by paragraphs 1 through 5 above, per co o;. change proposal. W w z J H; u. c. Where a change in the work involves work by subcontractors who are w o on secondary subcontractor tiers and below, the provisions for and 2 limitations on the Contractor's total markup, 7.b. above, shall apply to ga j each tier level above the subcontractor who performs the work, except u_ D: the total cumulative markup for all Overhead and Profit of the 1 d. Contractor and all such tiers shall not exceed forty percent (40 %) of i_ _; the allowable costs covered by paragraphs 1 through 3 above. ? i- E- O' z 1- 1.05 Article 17, Delays and Extension of Time 2 D. Do Insert the following paragraphs after the first paragraph of Article 17: :o A. If adverse weather conditions are the basis for a claim for additional time, such claim i v shall be documented by data substantiating that weather conditions were abnormal for u.1 the period of time and could not have been reasonably anticipated, and that weather z ui conditions had an adverse effect on the scheduled construction. 0 EL)' • ~ B. Delays due to strikes; lockouts, unavoidable casualties, fire, unusually severe weather O z or extensions of time on account of these events and others noted in the Contract Documents do not entitle the Contractor to payment for any extra compensation or damages. In no event shall any delays due to the Contractor's acts or omissions which requires the Owner to act under Article 20 or due to the Contractor's negligence or due to the "nature of the work" entitle the Contractor to a time extension or extra compensation or damages. "Nature of work" for the purposes of this document means the construction means, methods, techniques, sequences, or procedures necessary to produce the construction required by the Contract documents. C. In general, the number of working days allowed for completion of the project was determined to be sufficient to provide for the procurement of all materials necessary for construction and, unless otherwise noted, failure to procure the materials involved for any reason other than noted previously herein will not be considered as an adequate reason for an extension of time. 00800 -3 King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions 1.04 Article 14, Changes in the Work (Continued) A. COMPUTATIONS OF CHANGE IN CONTRACT SUM ON FULL COST BASIS z 4. On Site Overhead: 1 z'` w On site overhead costs shall be paid including, but not limited to, project 6 n supervision and clerical salaries. payroll taxes, office and utility expenses, v O; compliance expenses, small tools, and bond and insurance payments, but shall w 0 , be limited to those expenses, incremental to and directly resulting from the CO W. change. The Owner may insist that all such expenditures be supported by -I E- vendor invoices, or by evidence of cost accounting and payment, or may N LL permit these costs to be determined by an agreed upon percentage of the costs 2 covered by paragraphs 1 through 3. If agreement cannot be reached, the maximum On Site Overhead rate shall be ten percent (10 %) of those costs. u- < 5. Off Site Overhead: Z =`. I-- o Off site overhead costs shall be paid including, but not limited to, officer and z g office salaries, payroll taxes (excluding bonus and profit sharing), utility and al w occupancy expenses, business taxes and licenses (excluding taxes on income), D o insurance, professional fees (excluding litigation and litigation support), and • `p co' office supplies and expense payments, but shall be limited to those expenses 0 I; incremental to, and directly resulting from the change. The Owner may insist = W that all such expenditures be supported by vendor invoices, or by evidence of 1 �v—,. cost accounting and payment or may permit these costs to be determined by LI 0 an agreed upon percentage of the costs covered by paragraphs 1 through 4. If ui �;. agreement cannot be reached, the maximum Off Site Overhead rate shall be iz _ ten percent (10 %) of these costs. z 0 I"'± 6. Profit: On any cost covered by Paragraph 1 through 5, a profit markup not to exceed ten percent (10 %) will be allowed except that the combined total of Off Site Overhead and Profit shall not exceed fifteen percent (15 %) of all allowable costs under Paragraphs 1 through 4 above. 7. Subcontractors: Unless otherwise agreed, when work on a change is performed by an approved subcontractor, payment for the subcontractor's work shall be determined according to paragraphs 1 through•5 above, except that: a. The subcontractor who performs the work Profit Markup shall not exceed ten percent (10 %) of his costs covered by paragraphs 1 through 5 above, except that the combined total of the markup for Off Site Overhead and Profit shall not exceed fifteen percent (15 %) of all allowable costs under paragraphs 1 through 4 above. 00800 -2 • we`fy?SxtJ',.C!N �mM VC4....a.nnxamue . u.:R.,rr + ho+ King County Section 00800 Segale Levee Repair Drainage Improvement Supplementary Conditions SECTION 00800 - SUPPLEMENTARY CONDITIONS PART 1 - .sUPPLL' IYiL` 1\ 1r11t1 1.V1\L111VJ 1.01 Article 1, Definitions Add the following sentences to the end of Article 1, B: w u6n: The term "Owner" means the municipal corporation, King County, and the terms "County" V 0 0. and "Owner" may be used interchangeably throughout the Contract. co O. W= 1.02 Article 10, Permits, Laws, and Regulations N u~. Article 10 is hereby modified by the following condition: 2 i u__ King County will pay for the building permit. The Contractor shall be responsible for cn a. all other permits and licenses necessary for the execution of the work in accordance w' with Article 10 of the General Conditions. z i; F- O 1.03 Article' 12, Tests, Inspections and Access to Work w w: D o' Add the following paragraph to the end of Article 12: 0 n' oF- If the Contractor works overtime to meet the contract schedule and the Owner has not = v' caused delays, then the Contractor shall be responsible for any overtime costs :� E incurred for testing and inspection services normally considered the Owner's w Z responsibility. U N' O 1.04 Article 14, Changes in the Work Z In the second sentence of the first paragraph change the word "owned" to "owed". Paragraph A.2.b. In the first sentence delete the words for the" before the word "valid ". Paragraph A. 2. c. In the first sentence delete the comma after the word "excessive" and insert the word "in." Delete existing paragraphs A.4, A.5, A.6 & A.7 and REPLACE WITH THE FOLLOWING: 00800 -1 King County Segale Levee Repair Drainage Improvement General Conditions Section 00700 PART 1- GENERAL 1.01 Reference Sections SECTION 00700 - GENERAL CONDITIONS A: Section 00400 Supplement to Bid Forms B. Section 00510 Construction Contract, Bonds and Certificates C. Section 00800 Supplementary Conditions 1.02 Incorporation A. King County General Conditions of the contract, bound herein, are incorporated as a part of the Contract Documents. END OF SECTION 00700 -1 z., re LLI 2 QQ � jU U0 U w; w =; J H' N w u. D. =a i..w. I- 0': z i0 w uj IZa IL. H; 0 wi .Z; King County Segale Levee Repair Drainage Improvement SAMPLE (COMPANY LETTERHEAD) Section 00603 Release of Liens Certificate (Subcontractor /Materialmen) KING COUNTY RELEASE OF LIENS CERTIFICATE BY SUBCONTRACTOR/MATERIALMEN Project Title Address Date King County Facilities Management Division 320 King County Administration Building 500 Fourth Avenue Seattle, WA 98104 Project Manager: We, the undersigned hereby acknowledge payment in full for all bills in conjunction with the above- referenced project. Upon receipt of final payment and in consideration of such payment, we hereby waive all claims, rights, and liens of the property. Attached are "Affidavit of Wages," Form No. LI- 700 -7, which have been approved by Washington State Labor and Industries. Subcontractor/Materialmen Name Title END OF SECTION 00603 -1 z z:. J U; ,o O; tn UJ J I- CO LL w 0` u. ,c D. = a I_, zI. Z ww; D 10 52i ww U` LL Z. tii z King County Segale Levee Repair Drainage Improvement 5.AMPLE Section 00602 Release of Liens Certificate (General Contractor) (GENERAL CONTRACTOR - COMPANY LET .FERHEAD) KING COUNTY RELEASE OF LIENS CERTIFICATE BY GENERAL CONTRACTOR Project Title Address Date King County Facilities Management Division 320 King County Administration Building 500 Fourth Avenue Seattle, WA 98104 Project Manager: I, the undersigned contractor, do hereby certify that I have completed all the work on the above - mentioned project, contract dated , and that those listed below are all materialmen and subcontractors concerned in the completion of the contract work. I further certify that all materialmen, subcontractors, and other parties involved will be paid in full and that there will be no bills outstanding against the above - mentioned project after receipt of final payment. I do hereby agree to indemnify the Owner against any liens remaining unsatisfied as a result of omission of payment. I further agree to refund to the Owner any monies the Owner may be compelled to pay in discharging any liens made against this project. Attached is "Affidavit of Wages" Form No. LI- 700 -7, which has been approved by the Washington State Department of Labor and Industries. SUBCONTRACTOR(S) (Name, Address) - (as many lines as needed) By Title Attached: SUBCONTRACTOR RELEASE OF LIEN CERTIFICATES Number of END OF SECTION 00602 -1 I¢=— Z` et w; U0 .co W = .w 0. • g, w ¢. = a. w• _.. z 1- 0• U • tt: w W; u ui z; UN King County Segale Levee Repair Drainage Improvement Section 00600 Release of Liens, Certificate of Compliance SECTION 00600 - RELEASE OF LIENS, CERTIFICATE OF COMPLIANCE rAR1 1 - 1iL1 \E.KAL 1.01 Reference Sections A. Section 00400 B. Section 00510 C. Section 00700 D. Section 00800 Supplement to Bid Forms, M/WB Participation Construction Contract, Bonds and Certificates General Conditions Supplementary Conditions PART 2 - FINAL PAYMENT 2.01 Certificate of Compliance A. Final payment to the Contractor shall be contingent upon the filing of a Certificate of Compliance with the King County Facilities Management Division. 1. An example of the King County Certificate of Compliance is bound herein for exhibition. 2.02 Release of Liens Certificate (General Contractor) A. At the end of the Construction Phase, the Contractor shall issue a Release of Liens Certificate to the King County Facilities Management Division. 1. An example of the King County Release of Liens Certificate for General Contractors is bound herein for exhibition. 2.03 Release of Liens Certificate (Subcontractor / Materialmen) A. At the end of the Construction Phase, Subcontractors and Materialmen shall submit a Release of Liens Certificate to the King County Facilities Management Division. An example of the King County Release of Liens Certificate for Subcontractors/Materialmen is bound herein, for exhibition. END OF SECTION 00600 -1 z i ~. mow.. 6 U: U0. 1:1 • ul CO u.;. W 0. g -JJ. u.a D. =d z �. I-o z 1-. 2 ju o co 0 I--` j W u. • O. ▪ z. UW 0 1- O King County Section 00600 Segale Levee Repair Drainage Improvement Release of Liens, Certificate of Compliance SECTION 00600 - RELEASE OF LIENS, CERTIFICATE OF COMPLIANCE PART 1- GENERAL 1.01 Reference Sections A. Section 00400 B. Section 00510 C. Section 00700 D. Section 00800 Supplement to Bid Forms Construction Contract, Bonds and Certificates General Conditions Supplementary Conditions PART 2 - FINAL PAYMENT 2.01 Certificate of Compliance A. Final payment to the Contractor shall be contingent upon the filing of a Certificate of Compliance with the King County Facilities Management Division. 1. An example of the King County Certificate of Compliance is bound herein for exhibition. 2.02 Release of Liens Certificate (General Contractor) A. At the end of the Construction Phase, the Contractor shall issue a Release of Liens Certificate to the King County Facilities Management Division. 1. An example of the King County Release of Liens Certificate for General Contractors is bound herein for exhibition. 2.03 Release of Liens Certificate (Subcontractor / Materialmen) A. At the end of the Construction Phase, Subcontractors and Materialmen shall submit a Release of Liens Certificate to the King County Facilities Management Division. 1. An example of the King County Release of Liens Certificate for Subcontractors/Materialmen is bound herein, for exhibition. END OF SECTION 1b GeeY^iW.i'L]SUwS'viWe!411 Ylar314.. 00600 -1 .z z �. •mow , � D .0 O; CO o:- wi • -.1.1-• C0w .1co a. 1w z I! O • Z • 431 • _z. w /ft` .O Z • King County Section 00510 Segale Levee Repair Drainage Improvement Construction Contract, Bonds, and Certificates SECTION 00510 - CONSTRUCTION CONTRACT, BONDS, AND CERTIFICATES £'AAA 1 - 1.01 Reference Sections A: Section 00700 General Conditions B. Section 00800 Supplementary Conditions 1.02 Incorporation of Documents A. The Contractor agrees to the provisions of the documents named under this Section, and agrees to consider such named documents a part of the Project Manual and Contract Documents. PART 2 - CONTRACT 2.01 Standard Agreement A. King County Standard'Agreement between Owner and Contractor is the Form of Contract and is incorporated as part of Contract Documents as if bound herein. (Example attached for exhibition.) PART 3 - BONDS 3.01 Performance Bond A. King County Performance Bond is incorporated as part of the Contract Documents as if bound herein. (Example attached for exhibition.) PART 4 - CERTIFICATES 4.01 END OF SECTION 00510 -1 .i;,.i�iy. �' �+:0'ff.'iC.i: -'� - % �. '...; "5��:rS`:.rn- +e�+.�..y'^' u�s�:a`.._i��a.strJt:e �:tcri�itnu�BEZUir.3&'i• r.•��'.�i:•• z•• ice. w u6D;• •0 0 .cnw Wr. J F-, w0:. u_Q Z a. w zF. • f- 0- . z i--. • ww. :D Cr. • Vim; ;OQ F-; •w ; z ,U D. 'f z , King County Segale Levee Repair Drainage Improvement SECTION 00500 - NOTICE OF SELECTION PART 1 - NOTICE OF SELECTION 1.01 Notification A. By way of a Notice of Selection, the County will inform the appare bidder that they have been selected for award of the Contract: 1.02 Conditions of Selection A. This award is conditioned upon your compliance with applicable Si laws. B. This award is conditioned upon the formal execution of a written cc County and may be revoked prior to that time. C. Bidders are notified that all bids are likely to be rejected if the Lowe.': received exceeds the Engineer's estimate by an unreasonable amour, bids are rejected for this reason, this project may be deferred for rea until a more competitive situation exists. D. Until the Contract is fully executed, any work done on the Project a, or commitment of funds is at your own risk. If you wish to have the retained funds deposited in an escrow accou. Purchasing Agency in writing so that the appropriate forms can be f 1.03 Notice of Selection A. King County Notice of Selection is incorporated as part of the Conn if bound herein. Example attached for exhibition. END OF SECTION 00500 -1 King County S Segale Levee Repair Drainage Improvement Supplement to Bid : T Sl II. Fair Employment Practices (Continued) Li. Li6L:ltt.) t..4.1 ..+�.1iiiJl utt.) ji i:.iUit ti. for employment or assignment to a particular job classifica E. Employer, employment agency or labor organization to ret. because this person has opposed any practice forbidden by person has made a charge, testified or assisted in any manr proceeding or hearing initiated under.the provisions of Kin 12.18; F. Publisher, firm, corporation, organization or association pr. circulating any newspaper, magazine or other written publi be printed or circulated any advertisement with knowledge violation of K.C.C. 12.18.030 C., or to segregate and separ advertisements as applying only to men or women unless s reasonably necessary to the . normal operation of the particu employment, unless based upon a bona fide occupational q G. Employer to prohibit any person from speaking in a langua the workplace unless: 1. The employer can show that requiring that employe certain times is justified by business necessity, and 2. The employer informs employees of the requiremei violating the rule. If the Contractor fails to comply with King County Code, Chapter be subject to the procedures and penalties set forth therein. III. Minority and Woman -Owned Businesses (Subcontractors and Requirements, instructions and submittals for King County G A. Set Aside Requirements King County Code Chapter 4.18.060 requires that for construction Ten Thousand dollars ($10,000) contractors must meet the applica percentage set aside requirements: 1. Minority Business Obtain from OCRC participation - % Project Specific 2. Women's Business participation - % 3. Combined M/WB participation - % 00400 -2 z w 6 J U; O 0 W =' w 0 g-J °; �w 2. z �. E= o: z • CY O Di W, LL. zi Ili co", 0h. z.... King Count. Section 00400 Segale Levee Repair Drainage Improvement Supplement to Bid Forms, M /WB Participation SECTION 00400 - SUPPLEMENT TO BID FORMS M/WB PARTICIPATION MINORITY AND WOMEN'S BUSINESS PARTICIPATION AND AFFIRMATIVE ACTION FOR EMPLOYMENT z (Set Aside - -- Construction) .= t`! f- W. It is the policy of King County to provide equal employment opportunities for minorities, 6 j: women and handicapped persons and equal opportunities for minority and woman owned -1 U businesses to participate in providing goods and services to King County. Following is a : y o', summary of the County's affirmative action and minority and women's business participation ' w W. requirements. More detailed information and forms follow this summary. J H- CO w 0' ; 2 . L General Requirements g 5 w¢ King County has both an affirmative action program relating to employment and a z w minority /women's business participation policy relating to contractors, subcontractors and z = suppliers. By submitting this bid, the Contractor agrees to comply with the requirements of F- 0 King County Code Chapter 12.16 (relating to discrimination and affirmative action in • z E-' LLF employment) and Chapter 4.18 (relating to the procurement of goods and services from . 2 minority and women's businesses). These Chapters are incorporated into this Contract by D 0 reference. Summarization of the requirements of the above chapters in these specifications 'o �; does not relieve the Contractor of the obligation to meet all of the requirements of these King ° i= County Code Chapters.. Failure to comply with any of the provisions or requirements of i v, these chapters may be considered a breach of contract. i }_-: . —a z II. Fair Employment Practices During the performance of this contract, neither the Contractor nor any party subcontracting under the authority of this Contract shall engage in unfair employment practices as defined by King County Code, Chapter 12.18. It is an unfair employment practice for any: A. Employer or labor organization to discriminate against any person with respect to referral, hiring, tenure, promotion, terms, conditions, wages or other privileges of employment; B. Employment agency or labor organization to discriminate against any person with respect to membership rights and privileges, admission to or participation in any guidance program, apprenticeship training program, or other occupational training program; C. Employer. employment agency, or labor organization to print, circulate, or cause to be printed, published or circulated, any statement, advertisement; or publication relating to employment or membership, or to use any form of application therefor, which indicates any discrimination unless based upon a bona fide occupational qualification; 00400 -1 King County Section 00350 Segale Levee Repair Drainage Improvement Guarantee and Warranty SECTION 00350 - GUARANTEE AND WARRANTY 1.01 Reference Sections z A. Section 00300 Form of Bid re W B. Section 00700 General Conditions Q: C. Section 01700 Project Closeout u_, J U: 0 O; coo, 1.02 Contractor Requirements Ill = ILI J H. N W` A. Other warranty requirements contained in the Contract Documents not withstanding, w 0 the Contractor shall supply at least the following information and service on each 2 item: gj u_ Q co 0 1. A warranty of at least one year from date of acceptance of the particular item. _ W'. 2. Any special extended warranty offered by a supplier, or common to the trade. z 3. Name and address of local or closest warranty service. 0 4. Name and address of local or closest parts supplier. z f-` 5. Availability of direct factory service and parts. 2 D 6. Any special hours emergency service offered. v 0`. 7. A general statement of warranty policy. O CO—, CI 1: ILI B. .Deliver-to the King County Professional and Construction Services Procurement i 0 Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, ~O Seattle, Washington 98104, a bound set of all warranty documents upon completion z' of the Project. v N' OH 1.03 Approvals Submit the bound set of warranties to the Project Manager for approval, prior to delivery to the Owner. 1.04 Correction or Work During Guarantee Period Corrections: Where items found to be deficient have not been corrected prior to expiration of the specified guarantee period, it shall nevertheless be the responsibility of the Contractor to permanently correct said items after the specified guarantee period, and the contract shall not be full performed until such permanent corrections are made. Guarantee Period: All corrective work performed by the Contractor in remedying defective work during the guarantee period of the project shall be subject to the same guarantee requirements as specified for the original work, from the date of completion of the corrective work. END OF SECTION 00350 -1 z King County Section 00300 Segale Levee Repair Drainage Improvement Form of Bid N. Addenda (Continued) State of Washington Worker's Compensation Account Number END OF SECTION 00300 -6 -SA King County Section 00300 Segale Levee Repair Drainage Improvement Form of Bid K. Contracts and Bonds (Continued) ..i Lu.: Ui u1e pe1Le1ii (J'iu) Ul lilt: Di1S 1�1U accompanying this bid shall be retained by the Owner, and that if Bidder fails to deliver said documents within ten (10) days after written Notice of Selection of Contract to Bidder, deposit shall be forfeited. The bid deposit shall be returned after the Contract Documents have been accepted by the Owner. L. Bid Withdrawal This Bid may be withdrawn at any time prior to the scheduled time for the opening of bids, or any authorized postponement thereof.. M. Owner's Right to Reject Bids Bidder acknowledges the right of the Owner to reject any or all bids and to waive any informalities in the bidding. Addenda Receipt of addenda numbered through is hereby acknowledged. Legal name of person, firm or corporation submitting bid Street Address City, State, ZIP Phone:. By: Signature Title State of Washington Contractor's Registration Number Federal Tax ID# 00300 -5 -SA :°.',`.:5ui'�ti1Ji:4X:':., Y:lik.:','.WS:: :`i�'� Y. ..+... .: •a+� n t +.'A;_° :::tlbi edyef.'�'t t y .arxtoiai ..z+:•:�;jy�tetyF •w:+Wi.iSgst�• "s" :"exv aa..c ....... e..,�,. King County Section 00300 Segale Levee Repair Drainage Improvement Form of Bid I. Sales Tax Bidder agrees the foregoing Base Bid and applicable alternates do not include the County's obligation for Washington State or local sales taxes. The County will pay the Washington z State sales tax only on the total contract price. 1 z a_ w I. Sales Tax (Continued) 6 D J U: 00 Under WAC 458 -20 -171 ("Rule 171") retail sales tax does not apply to any portion of the N W:' contract price charged for building, repairing, or improving a publicly owned street, road, _I I path, bridge, etc. (see WAC 458 -20 -171 for detailed explanation). In submitting a bid amount N u-: w0 for Rule 171 work, the undersigned warrants that at least the submitted amount will qualify 2 for this sales tax exemption and that the undersigned will assume the tax liability for any 1 Q:. amounts disallowed by the State of Washington. The amount submitted for Rule 171 will be U) D used in calculating the total cost to the County of the bid submitted. I" w z1-. J. Time of Completion and Liquidated Damages z O 11.1 ui Bidder agrees, if awarded the Contract, to complete 100% of the work within a specified n o number of consecutive calendar days as specified in Section 01030, Contract Time and p (12 ' Sequence, after receiving official Notice to Proceed. Bidder further agrees that for each 0 i•-: calendar day that the work remains uncompleted after the above fixed period, Bidder shall 1 c.)' pay Owner a sum as specified in Section 01030 Contract Time and Sequence, as fixed and „f=. agreed, liquidated damages, but not as a penalty. z'. Iii C K. Contracts and Bonds F o z If written Notice of Selection of this Bid is mailed or delivered to the Bidder within sixty (60) days after the date of opening the bids, or at any time thereafter prior to the Bid being withdrawn by the offerer, the Bidder agrees to sign and deliver within ten (10) days after the Notice of Selection, exclusive of the date of notice, a contract in the form required by the Contract Documents in accordance with the Bid as accepted. Additionally, the apparent successful Bidder will be required to furnish performance and other required bonds satisfactory to King County within ten (10) days after the Notice of Selection, exclusive of the date of notice. The sixty (60) day period for formal execution of the Contract by the County may be extended by mutual written agreement of the Bidder and the Owner. On contracts of Twenty -Five Thousand dollars or less, including Washington State sales tax, at the option of the Contractor, the County will, in lieu of the bond, retain fifty percent (50 %) of the Contract amount for a period of thirty (30) days after the date of final acceptance, or until receipt of all necessary releases from the Washington State Department of Revenue and the Department of Labor and Industries and settlement of any liens filed under Chapter 60.28 RCW, whichever is later. 00300 -4 -SA King County Section 00 300 Segale Levee Repair Drainage Improvement Form of Bid E. Subcontractor List 1�lUueI �llilu l Ull]�71011 Sulu uullill villll lily; 1.01111 vl 1-)1s1 �11� �i11.1� 1i. 041■)■.■11151.t402i ••• Per Title 39 RCW Revisions of the 1993 Legislative Session, any general contractor bidding Z on projects with a base bid price in excess of $100,000 must submit at the time of bid :1-z, opening a listing of all subcontractors whose participation amount is equal to or greater than rt 2; 10% of the total bid. Subcontractors whose participation totals do not amount to 10% of the 6 v base bid do not have to be listed. The prime contractor shall also submit the total dollar value 0 o and the percentage of the base bid in which he /she will participate. ' w = J I- N ll..: Any bid in excess of $100,000 that does not include this completed form shall be considered w O non- responsive. gQ Affirmative Action for Employment cn a _. As an administrative convenience in applying affirmative action provisions in King County Z �' Code Chapter 12.16, King County requests that bidders submit along with the Form of Bid z O: ui the following executed (and notarized where required) documents: . 2 U �; O -: 1. Affidavit and Certificate of Compliance with King County Code Chapter 12.16 0 i--; (Union and/or Employee Referral Agency) = w. 2. Personnel Inventory Report Form 1- -' 3. -Sworn Statement of Compliance with King County Code Chapter 12.16 w z. 4. ADA/504 Disability Assurance of Compliance and Corrective Action Plan c) SQ , 5. Declaration of M/WBE Status p �_- 6.. Subcontractor List Z Bidder understands that the documents listed above are required to be submitted prior to formal execution of the written Contract by King County. G. Fair Employment Practices During the performance of this Contract, neither the Contractor nor any party subcontracting under the authority of this Contract shall engage in unfair employment practices as defined by King County Code Chapter 12.18. The Bidder agrees, if awarded the Contract, that failure to comply with this chapter shall result in the Bidder being subject to the procedures and penalties set forth therein. H. Reinstatement of Alternatives Bidder agrees that the Owner has the right to reinstate, at the bid price, any Alternate Bid not incorporated into the Contract if the Owner so notifies Bidder within sixty (60) days after initial official Notice to Proceed with the work. 00300 -3 -SA King County Section 00 300 Segale Levee Repair Drainage Improvement Form of Bid C. Alternate Bid Items �rir:■tiw' end frdnetive Alternates INSTRUCTIONS: Write or type in the amount to be added to or deducted from the Base Bid z for each of the following alternates. Indicate with an X before the appropriate word, whether .11-: 1-z the stated amount is to be added or deducted. If neither is indicated by an X, the amount will rt w, 2i be assumed to be DEDUCTIVE. If inclusion of the alternate would result in neither an 6 = JU. addition to nor a reduction from the Base Bid, write or type 0 (zero) for the amount. If .tl O co o, nothing is indicated for the amount, it will be assumed that the amount 0 (zero) was intended. i w =, Descriptions of the alternates are in Section 01100: The Base and Alternate Bid prices do not -J E- include Washington State sales tax. CO w p List Alternates - Project Specific u.:3: Alternate #1 (Project Specific) 'cn d.. Add 11] $ ? _i- 1-- O. z i--: Li w. Deduct❑ $ . n: D DI Amount in words Amount in Numbers 8 co;, D. Subcontracting With M/WB Firms = w' V; t�., f'- Bidder shall complete and submit with the Form of Bid the attached Contractor's Declaration w Z fic of Minority /Women's Business Participation. o ,F Bidder agrees that, based on the total dollar amount of the bid submittal, the following ?., minimum set aside percentages for minority and women's business participation will be met: 1. Minority Business Participation - (Obtain From OCRC) 2. Women's Business Participation - 3. Combined M/WB Participation - (Project Specific) In absence of a waiver, any bid which fails to meet the above set aside requirements for the base bid shall be deemed non - responsive. 00300 -2 -SA King County Section 00300 Segale Levee Repair Drainage Improvement Form of Bid LUMP SUM BID Place: 12th Floor - Contracts Division, King Z County _ ~ Exchange Building ~ w MC W Date: V 0 Bid of (hereinafter called w = J "Bidder, ") a corporation, organized and existing under the laws of the State of w O. , a partnership, or an individual doing business as u Q Via: H= Z H0. To: King County Bid Board w w King County, Washington p 0 -.: Having carefully examined the Specifications, Drawings, and Contract Documents for the Project entitled: :o i— w Segale Levee Repair Drainage Improvement �`. as prepared by the King County Facilities Management Division, as well as the site of the proposed work, v c_n. and being familiar with all of the conditions surrounding the construction of the proposed Project including i= /_.. the availability of materials and labor, the undersigned hereby agrees to furnish all labor, materials, and Z supplies, and to construct the Project in accordance with the Contract Documents, within the time set forth therein, and at the price stated below. This price is to cover all expenses incurred in performing the Work required under the Contract Documents of which this Form of Bid is a part. A. Base Bid Complete all work required for Segale Levee Repair Drainage Improvement, as described in the Contract Documents for the sum, but not including Washington State Sales Tax: Bid Amount in Words Bid Amount in Numbers B. Rule 171 Amount Items in the Base Bid which qualify under Rule 171 (See Part H below). $ Bid Amount in Words Bid Amount in Numbers 00300 -1 -SA King County Section 00102 Segale Levee Repair Drainage Improvement General Project Information 2.01 Documents Available (Continued) B. Copies of the above information are available at the office of the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104. C. These documents(s) are incorporated as part of this Section as if herein bound. It is the responsibility of the Contractor to inspect these documents. END OF SECTION 00102 -2 V LI,.S_:ii.?.- .;iij: i�i(�.i..i:Gu'i*5:��•t;�'.': tCi} 7iiS11AY ^rl:+`.ii..i.`..i�Ea!ie: naEU:45n ✓i.Y swuF.1L %•: __ "J' _ "�a.�r.%''` lid; S^/.YLtE':h'.�'ntiV+ta'Jnf. ".'st -r_�k:.r. "'i:`i.tii .4:v�:''v bi�n.:YE2.t�iAl3L�l.ib'A:O� ' King County Section 00102 Segale Levee Repair Drainage Improvement General Project Information SECTION 00102 - GENERAL PROJECT INFORMATION 1'Ah.1 1 - 1111: 1.1' JJL' L 1 1.01 Reference Sections Z ;1-z` A. Section 00100 Instructions to Bidders B. Section 00300 Form of Bid 6 m.` 0 o` 1.02 Project Name u) 0 - J co w IL I. J H. Segale Levee Repair Drainage Improvement co w w0 1.03 Project Location u.Q East of Andover Park West along west bank of Green River. Bounded by S 180th —co a Street and Segale Park Drive in Tukwila, Washington. F _ z�;. 1.04 Description of Work z O w w This work involves installation of perforated underdrain pipe, catch basins, pump m p.. station, force main, excavation and grading, asphalt repair, relocating chain link fence p N and gates, erosion control and other work. ;o ;2 V;. :z King County Surface Water Management Division v Q Department of Natural Resources '17- O 1 700 Fifth Avenue, ;Z Key Tower, Suite 2200 Seattle, Washington 98104 1.05 Owner 1.06 Contracting Agency King County Professional and Construction Services Procurement. Division 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division Seattle, Washington 98104 ' PART 2 - INFORMATION AVAILABLE 2.01 Documents Available A. List materials 00102 -1 Ss.ti.i,tEst, +'J. +t�hiFft�a"&�IK.Liria3�44i` +,,.. "3Lwra`.'��t`'< -r :'. � .: � . cl:d:.�• 'TT"' .<, v.`.rt.id' • King County Section 00101 Segale Levee Repair Drainage Improvement Environmental Requirements KING COUNTY King County Resolution No. 25789 requires an unclassified use permit for filling, quarrying (including borrow pits and associated activities such as asphalt plants, rock crushers), and refuse disposal sites and provides for land reclamation subsequent to these activities. King County Ordinance No. 1488 requires permit for grading, land fills, gravel pits, dumping, quarrying and mining operations, except on County right -of -way. Review by Building Division. King County Ordinance No. l 527 requires Land Use Division and Flood Control Division review of grading and filling permits and unclassified use permits in flood hazard areas. Resolution No. 36230 establishes storm drain design standards to be incorporated into project design by Engineering Services. Review by Flood Control Division. King County Ordinance No. 800. No. 900. No, 1 006 and Resolution No. 8778. No 24553. No. 2134. No, 6894 and No, 11242 contained in King County Code Titles 8 and 10 are provisions for disposition of refuse and litter in a licensed disposal site and provide penalties for failure to comply. Review by Division of Solid Waste. The above requirements will be applicable only where called for on the various projects. END OF SECTION 00101 -4 z • �Z � w 2 0 0; • ' w: w =: 1H, N Li.... w 0' J . lL Q' Nom, Z� F-0 Z U • '0 H1 • i w' lL O( W Z. • U Vii. O. .Z. King County Section 00101 Segale Levee Repair Drainage Improvement Environmental Requirements WASHINGTON STATE (Continued) '' . i)iL) i.J111 LUi 1LUi1U11116 i1L)ll.J 111'll�ai �'l l+i land, air and water pollution. Makes it unlawful to dump or deposit solid wastes onto or under the surface of the ground or into the waters of this State except at a solid waste disposal site for which there is a valid permit. Shoreline Management Act of 1971: Requires a permit for construction on State shorelines. W.A.C, 508 -60: Requires permit to construct in State flood control zone. W.A.0 372 -24• Requires permit to discharge commercial or industrial waste waters into State surface or groundwater (such as gravel washing, pit operations, or any operation which results in a discharge which contains turbidity). W.A.C. 508 -12 -260: Requires permit to construct reservoir for water storage. W.A.C. 508 -12 -100: Requires permit to use surface water. W.A.C. 508 -12 -220: Requires permit to use ground water W.A.C. 508 -12 -280: Requires permit to construct storage dam. Washington State Department of Fisheries and Game Chapter 112. Laws of 1949: Requires hydraulics permit on certain projects. R.C.W. 27.53: Archaeological resources. Fire Protection District R.C.W. 52.28.010. 52.28.020. 52.28.030.52:28.040. 52.28,050: Provides authority for, requirements of, and penalties for failure to secure a fire permit for building an open fire within a fire protection district. REGIONAL AGENCIES Puget Sound Air Pollution Control Agency Regulation I: A regulation to control the emission of air contaminants from all sources within the jurisdiction of the Puget Sound Air Pollution Control Agency (King, Pierce, Snohomish, and Kitsap Counties) in accordance with the Washington Clean Air Act. R.C.W. 70.94. 00101 -3 King County Section 00101 Segale Levee Repair Drainage Improvement Environmental Requirements WASHINGTON STATE (Continued) R.C.W. 76.04.370: Provides for abatement of additional fire hazard (lands upon which there is forest debris) and extreme fire hazard (areas of additional fire hazard near building, roads, campgrounds, and school grounds). The owner and/or person responsible is fully liable in the event a fire starts or spreads on property where an extreme fire hazard exists. R.C.W. 76.04.010: Defines terms relating to the suppression of abatement of forest fires or forest fire conditions. R.C.W. 70.94.660: Provides for issuance of burning permits for abating or prevention of forest fire hazards, instruction or silvicultural operations. R.C.W. 76.04.310: Stipulates that everyone clearing land or clearing right of way shall pile and burn or dispose of by other satisfactory means, all forest debris cut thereon, as rapidly as the clearing or cutting progresses, or at such other tinges as the department may specify, and in compliance with the law requiring burning permits. R.C.W. 78.44: Laws governing surface mining (including sand, gravel, stone and earth from borrow pits) which provide for fees and permits, plans of operation, reclamation plan, bonding, and inspection of operations. R.C.W. 76.04.150: Requires burning permit for all fires except for small outdoor fires for recreational purposes or yard debris disposal. Also the Dept. of Natural Resources reserves the right to restrict burning under the provisions of R.C.W. 76.04.150, 76.04.170, 76.04.180, and 70.94 due to extreme fire weather or to prevent restriction of visibility and excessive air pollution. W.A.C; 332 -18: Delineates all requirements for surface -mined land reclamation. W.A.C. 332 -24: Codifies requirements of R.C.W. 76.04 pertaining to land clearing and burning. Washington State Department of Ecology W.A.C. 18 -02: Requires operators of stationary sources of air contaminants to maintain records of emissions, periodically report to the state information concerning these emissions from his operations, and to make such information available to the public. See Puget Sound Pollution Control Agency Regulation I. R.C,W. 90.48: Enacted to maintain the highest possible standards to ensure the purity of all water of the State consistent with public health and public enjoyment thereof, the propagation and protecting of wildlife, birds, game, fish and other aquatic life, and the industrial development of the State, and to that end require the use of all known available and reasonable methods by industries and others to prevent and control the pollution of the waters of the State of Washington. It is unlawful to throw, drain, run or otherwise discharge into any of the water of this State any organic or inorganic matter that shall cause or tend to cause pollution of such waters. The law also provides for civil penalties of $5,000 /day for each violation. 00101 -2 z i-z re LAJ 00 w wI w • 0 g Q. ▪ d 1—w z1._ o` w~ n o 0 O 22 O F-' w w: O: iii z; z Kine County Section 00101 Segale Levee Repair Drainage Improvement Environmental Requirements SECTION 00101 - ENVIRONMENTAL REQUIREMENTS REQUIREMENTS FOR THE PREVENTION OF ENVIRONMENTAL POLLUTION AND PRESERVATION OF PUBLIC NATURAL RESOURCES In accordance with the provisions of Chapter 62, Laws of 1973, H.B. 621, the Contractor shall secure any permits or licenses required, except those secured by Owner as stated in the special provisions, and comply fully with all provisions of the following laws, ordinances, and resolutions, where they are applicable to this project: UNITED STATES U.S. Army Corps of Engineers Section 1 of the River and Harbor Act of June 13. 1902: Authorizes Secretary of the Army and Corps of Engineers to issue permits to any persons or corporation desiring to improve any navigable river at their own expense and risk upon approval of the plans and specifications. Section 404 of the Federal Water Pollution Control Act (PL 92- 500.86 Stat. 816): Authorizes the Secretary of the Army, acting through the Corps of Engineers, to issue permits for the discharge of dredged or fill material into the navigable waters at specified disposal sites. Permits may be denied if it is determined that such discharge will have adverse effects on municipal water supplies, shellfish beds and fishery areas, and wildlife or recreational areas. Section 10 of River and Harbor Act of March 3. 1899: Requires permit for construction (other than bridges - see U.S. Coast Guard administered permits) on navigable waters. U.S. Coast Guard Section 9 of River and Harbor Act of March 3. 1899, General Bridge Act of March 23. 1906. and General Bridge Act of 1946 as amended August 2. 1956: Requires a permit for construction of bridges on navigable waters. Owner will comply with pertinent sections of the following laws while securing the aforementioned permit: Section 4(f) of Dept. of Transportation Act, National Environmental Policy Act of 1960, Water Quality Improvement Act of 1970. Miscellaneous Federal Legislation Section 13 of the River and Harbor Act approved March 3. 1899: Provides that discharge of refuse without a permit into navigable waters is prohibited. Violation is punishable by fine. Any citizen may.file a complaint with the U.S. Attorney and share a portion of the fine. WASHINGTON STATE Washington State Department of Natural Resources 00101 -1 z F.: �w re U to W =. J I.,. w0 2 u-Q co = I- w 2 z� F-- O Z uj 2o U O N: U I ww U: - 0. wz U D- I- O z King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders 3.06 Requirements for the Prevention of Environmental Pollution and Preservation of T'tthlic Nptur;tl Recnttrces (Continued) C. All costs resulting therefrom shall be included in the bid prices and no additional compensation shall be made. D. These requirements will be applicable only where called for on the various projects. 3.07 Termination Prior to Contract Signing A. Bidders are advised that the County reserves the right to reject any and all bids at any time and to choose not to award the Contract up to the time the County signs the Contract Documents, even after the Notice of Selection has been issued. In submitting a bid, Bidders acknowledge that the Notice of Selection confers no right of contract on any bidder. In submitting a bi Bidders acknowledge that, even after a Notice of Selection, a decision by the County to not enter into the Contract will not result in any claims or causes of action for costs or damages by the Bidders against the County. B. The date of any award of this Contract may be contingent upon obtaining additional funding from the County Council. The date of notice to proceed may be contingent upon the building and engineering permits and/or Conditional Use Permit. 3.08 Contract Award A. If the County elects to enter into the Contract, the Contract will be awarded to the lowest responsible bidder submitting a responsive bid for the work described. END OF SECTION 00100 -7 z Q •: Wiz. W: J U; U O: W= W O: gQ uj z° za I- 0; z F•- . • W :W W F- V IL • w Z U= O z King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders 3.03 Contracts and Performance Bonds (Continued) 4. Where the Contract requires a Performance Bond, the persons signing for the z corporation must sign both the Contract Agreement and the Performance Q Bond. The Contractor must provide four signed original copies of the ; I- z Performance Bond, each sealed by the Surety bonding the Contractor, each g bearing a valid Power of Attorney for the Surety's Attorney -in -Fact, along . 6 c=.). with the Contract Documents. v 0 cno, B. Attorney -In- Fact/Seal w °I ii The surety should be bound by an attorney -in -fact, preferably a resident of this tll O' County, but certainly the State of Washington. g _• � J. tL Q; 3.04 Specific Provisions Control co ▪ v A. To the extent any Supplementary Conditions, Specifications, or other Special County z— Requirements ( "Special Conditions ") may vary from the General Conditions of the I-- o Contract, those special conditions will control. w IIA 3.05 RCW 82 • D- 8 —, oF- A. Before payment by the Contractor of any taxes to the Department of Revenue for or _ LLI �' on account of any materials or work involved in this Contract, the parties shall 1- determine the amount which may be claimed due under the provisions of RCW 82 — 0 and such sum shall be withheld by the County from the contract price to be paid by ti.i the County directly to said Department if found to be due by final determination of v = the courts of the State of Washington. o I- z 3.06 Requirements for the Prevention of Environmental Pollution and Preservation of Public Natural Resources A. In accordance with RCW 39.04.120, the County has included in the Contract Documents a list of such reasonably obtainable federal, state, and local laws, ordinances and regulations dealing with the prevention of environmental pollution and the preservation of public natural resources. The successful Bidder shall fully comply with all such laws, ordinances and regulations that may be applicable to this Project, including any new, and/or amendments to existing laws, ordinances,and regulations dealing with prevention of environmental pollution and the preservation of public natural resources not contained on this list. 1. Copies of the texts of the laws, ordinances, and regulations contained on the County- provided list are available for inspection. B. It shall be the responsibility of the Contractor to familiarize him or herself with all requirements therein. 00100 -6 King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders PART 3 - POST BID OPENING INFORMATION 1.111 FZ•rr,,t;nn of Cnn. tract A. All bids will be opened at the specified time by the Purchasing Manager of King County or his/her designee. The apparent successful Bidder will be contacted by the Q King County Contract Compliance Officer as to actions that must be taken to receive 1- z approval of an affirmative action program. This approval will be necessary before the re 2 Contract will be signed. 6 v 00 B. After the Notice of Selection has been issued and transmitted with Contract . co °" Documents, the apparent successful bidder will be required within ten (10) calendar w = days, exclusive of the date of notice, to sign and deliver said Contract Documents and cn �` to furnish performance and other required bonds satisfactory to King County. Before w 0 conunencing work, the Contractor will be required to furnish a certificate showing 2 W. satisfactory proof of required insurance. g C. All Public Works Contracts are subject to the provisions of Titles 36, 39, 40, 48, 49, E 50, 51, and 60 RCW, as they pertain to Public Works Employment and Wages in the z i. political subdivisions of the State of Washington. The Contractor or Subcontractor F- p, will be required to submit any and all fees required for the Statement of Intent to Pay w �' Prevailing Wages and the Affidavits of Wages Paid. Said fees shall accompany each 2 D statement or affidavit and shall be made payable to the Department of Labor and 0 0' Industries. 2 �, = w F„ V a. A. Invoices shall be prepared and submitted in duplicate (one copy shall be marked z "Original ") unless otherwise specified. Invoices shall contain the following v D. information: Contract or Order Number (whichever applies), requisition number, o L charge to department, deliver to address, item numbers, description of supplies or z services, sizes, quantities, unit prices, and extended totals. 3.02 Seller's Invoice 3.03 Contracts and Performance Bonds A. Signatures 1. Proprietorship: Execution by the Contractor should be in the correct name. If a sole proprietorship (even though the words "and Company" appear) the person should name him or herself as owner. Example: John Doe, John Doe Company. 2. Partnership: If the Contractor is a partnership, the managing partner should sign, describing him or herself as such. 3. Corporation: If the Contractor is a corporation, a signature for the corporation by the president or his/her equivalent and by the secretary or his/her equivalent, describing themselves as such, plus imprint of the seal, will be presumed sufficient. If the corporation has a resolution or by -laws authorizing some other signature, a copy of the resolution or by -laws should 'be submitted with the offer. 00100 -5 • .?sF�P%w'L�+ " ,'rh.",Mtb'!exslo0M,ca>ars- 4.,..�.�.ry,±mt1 f5' ?!var1+i?mA ttrAS W4c King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders 2.03 Prohibition of Alterations conditioned in any way, or which contain erasures, alterations, or items not called for in the Form of Bid, or which are not in conformity with the law, may be rejected as informal or non - responsive. B. The Form of Bid invites bids on definitive Drawings and Specifications. Only the amounts and information asked for on the Form of Bid will be considered as the Bid. Each Bidder shall bid upon the work exactly as specified and as provided in the Form of Bid. C. No oral or telephonic bids or modifications will be considered. D. With the exception of requested approvals of substitutions as indicated in Paragraph 1.08, modifications of bids already received will be considered only if the request and modification is made prior to the scheduled closing time for the receipt of the bids. All modifications must be made in writing, over the signature of the Bidder. 2.04 Withdrawal of Bids A. At any time prior to the scheduled closing time for receipt of bids, any bidder may withdraw their bid, either personally or by telegraphic or written request. After the scheduled closing time for the receipt of bids or before the Formal Execution of the written contract by King County, no bidder will be permitted to withdraw their bid unless said formal execution is delayed for a period exceeding sixty (60) days. 2.05 Contractor Identification A. If the Bidder is a co- partnership, so state, giving name under which business is transacted: B. If the Bidder is a corporation, its bid must be executed by its duly authorized officials. 2.06 Opening of Bids A. Sealed bid proposals will be received only at and opened in public at the Office of the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104 at any time between 8:30 A.M. and 4:30 P.M., Monday through Friday, but no Iater than 2:00 P.M., on June *.. *, 1996 for the furnishing of all necessary labor, materials and equipment and performing all work required for the project entitled: B. At the time and place set for the opening and reading of bids, each and every bid (except those which may have been withdrawn in accordance with the foregoing Withdrawal of Bid) received prior to the scheduled closing time for receipt of bids will be publicly opened and read aloud, irrespective of any irregularities in such bids. 00100 -4 z 1 w. 6v U O CO w= CO Li. w ua a I-- _ z F... I— o Z I- w Lu 0 ON. 0 I-- w w: LL 0 wz U _: O -; z King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders 1.09 Recycled/Recyclable Products A. The Contractor shall use recycled paper for the production of all printed and photocopied documents related to the fulfillment of this contract. If the cost of recycled paper is more than fifteen percent higher than the cost of non - recycled paper, the Contractor shall notify the Project Manager, who may waive the recycled paper requirement. B. The Contractor agrees to use both sides of paper sheets for copying and printing, and to use recycled/recyclable products wherever practical. .1.10 Requirement for Disability Compliance A. Federal, State, and local laws prohibit discrimination based on disability. All organizations and firms contracting with King County must comply with Section 504 of the Rehabilitation Act of 1973, as amended, and the Americans with Disabilities Act of 1990. PART 2 - BIDDING PROCEDURES 2.01 Filling in Bid Forms A. The Bidder shall submit their bid on the forms furnished by King County. All blank spaces in the Form of Bid shall be properly filled in. If the Bid is made by a partnership, it shall contain the names of each partner and shall be signed in the firm name, followed by. the signature of the person signing, indicating that person's position in the firm. If the Bid is made by a corporation, it shall be signed by the name of the corporation, followed by the written signature of the officer signing, and the printed or typewritten designation of the office they hold in the corporation. The address of the Bidder shall be typed or printed on the bid. 2.02 Submission of Bid A. Each bid, provided loose leaf in the Specifications Project Manual, shall be completely sealed intact in a separate package, properly addressed to the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104, with the name of the Bidder, the Bid Number, and the Project written on the outside of the package. B. Bids will be received at the time and place stated in the advertisement for bids. The advertisement for bids provides that a fee or deposit for Drawings and Specifications will be required from each bidder. C. King County reserves the right to reject any or all bids and to waive informalities. 00100 -3 z w; la. QQ , J V. U O. W =:. N u- wwQO LL -J co mcy • w = z� z 0' • •w off'' w; • - O ui :O z King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders 1.05 Bid and Performance Guarantee A Money Order, Cash, Cashier's Check, or Certified Check in the amount equal fo 5 percent of the base bid proposed as evidence of good faith. In the event of failure of z the successful Bidder to enter into the Contract and to furnish a Contractor's Performance Bond within 10 calendar days after the Notice of Selection has been 1- z issued, exclusive of the day of notice, the amount of the bid deposit will be forfeited t to King County. 6 D 0 01 B. The Contractor shall furnish a Contractor's Performance Bond in the Contract , 0 (3 amount, including tax, to insure the performance of all the provisions of the contract co I- an d pay all laborers, mechanics, subcontractors and materialmen and all persons who (o u_ supply such persons. If the Contract amount is less than $25,000 including tax, in w O: lieu of bond the contractor may elect to have King County retain 50 percent of each 2 purchase order amount for a period of thirty days after date of final acceptance or g Q until receipt of all necessary releases and settlement of any liens in accordance with D a 3 Chapter 39.08 of the Revised Code of Washington which is hereby incorporated in z this bid invitation as if fully set forth herein. z 1, H O z I- A. All materials and equipment provided shall be new unless noted otherwise in the v �. O D i--. = w. �U P LL• Z U CA' z 1.06 Materials and Equipment Specifications. 1.07 Completeness of Documents A. The Bidder shall verify that all documents supplied by the Owner, and upon which the Bidder is basing their bid, are full and complete with no missing pages, . sheets, or unintentional blank spaces. Submittal of a bid indicates the Bidder has verified they have obtained all Owner- supplied documents. No claim for additional work due to missing bid information will be allowed. 1.08 Substitutions and Approval For Prior Receipt of Bids A. Bids must be based on the specific articles and materials named in the Contract Documents, or their approved equals. (See Article 46 of General Conditions.) During the bidding period, written requests for approval of substitutions by prime bidders will be considered if received in the Project Manager's office not later than 10 days prior to the date of bid opening. Such requests shall be accompanied by complete descriptions, technical data and documentary evidence that the proposed substitution is equal to, or better than, those articles or materials specified. The Project Manager reserves the right to request that samples be submitted and satisfactory demonstrations be made for the proposed substitutions prior to approval. C. Approval of proposed substitutions will be made by addenda, mailed to all bidders. Proposed substitutions not so listed shall be considered having been rejected. 00100 -2 King County Section 00100 Segale Levee Repair Drainage Improvement Instructions to Bidders SECTION 00100 - INSTRUCTIONS TO BIDDERS PART 1 - GENERAL 1.01 Related Sections A. Section 00300 Form of Bid B. Section 00400 Supplement to Bid Forms M/WB Participation C. Section 00700 General Conditions 1.02 Examination of Site and Conditions A. The Bidder is required to examine carefully the site of the proposed work, all Contract Documents including the Bidding Documents; Specifications and Drawings; and the form of contract with attachments before submitting a bid. It is mutually agreed that submission of a bid shall be considered prima facie evidence that the Bidder has made such examination and is satisfied as to the conditions to be encountered in performing the Work as scheduled, or at any time altered without resulting increases or decreases of more than the percentage limits stipulated in the General Conditions hereinafter and as to the character, quality, and quantities of work to be performed and material to be furnished, including said increases or decreases, and as to the requirements of the Drawings, Specifications, Supplementary Specifications, and Contract. B. No statement made by any officer, agent or employee of King County, in relation to the physical conditions pertaining to the site of the Work will be binding on King County. 1.03 Laws and Regulations A. It shall be the responsibility of the Bidder to be familiar with all Federal, State, and County laws and regulations which in any manner affect those engaged or employed in the Work or the materials or equipment used in the proposed construction, or which in any way affect the conduct of the Work, and no pleas of misunderstanding will be considered on account of ignorance thereof. If the Bidder or Contractor shall discover any provision in the Drawings, Specifications, or other Contract Documents which is contrary to or inconsistent with any law or regulation, he /she shall forthwith report it to the Project Manager. 1.04 Bid Sums A. The sum of money shown on the Form of Bid covering all work included in base bid Contract Documents, together with any addenda thereto and/or for unit prices called for, or for any alternates called for, shall include all items of labor, material, equipment, overhead, and compensation to complete all of the work under each particular Division and Section. z xz re 2 JU 0 0: co W J � LL w o: J' LL w =a w, tu F- O: NS ww —O w to z Icing County Segale Levee Repair Drainage Improvement Cerin`TY Trfnrrin} inn Section 00050 Invitation to Bid Bid No.: C00000C All bids must be accompanied by a bid deposit in the form of a Surety Bond, Postal Money Order, Cashier's Check, or Certified Check made payable to King County Finance Director, or Cash (U.S. Currency) in an amount equal to 5 percent of the amount of the base bid proposed. Failure of the successful Bidder to enter into the Contract and to furnish a Contractor's Performance Bond within ten (10) days after Notice of the Selection, exclusive of the day of notice, will result in the bid deposit being forfeited to King County. Per Chapter 39.08 of the Revised Code of Washington, Contracts totaling $25,000 or more will require a Contractor's Performance Bond equal to 100 percent of the contract amount from the successful Bidder. No bids will be accepted after the time and date stated above. Bid Documents, including Specifications and/or Drawings, may be obtained at the office of the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104 for a $15.00 non - refundable fee. If you wish to have them mailed to you, enclose an additional $5.00 non - refundable mailing fee with your request. END OF SECTION 00050 -2 z • • w W D; JU: U O; co 0 H UJ _ J wo gQ CO , 0 = d: I-w .1- cx • . U� ;O - uf. H U` Z'. U Ni :0 King County Segale Levee Repair Drainage Improvement SECTION 00050 - INVITATION TO 1111) ' Section 00050 . Invitation to Bid Bid No.: 000000C Date Issued: Bid Number: C Bid Opening Date: Time: 2:00 PM All Bids must be submitted no later than 2:00 P.M. exactly. Project Manager: Mike O'Neil Requisition Number: Sealed bid proposals are hereby solicited and will be received only at and opened in public at the office of the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104 at any time between 8:30 A.M. and 4:30 P.M., Monday through Friday, but no later than 2:00 P.M. on for the furnishing of all necessary labor, materials and equipment and performing all work required for the project entitled: Segale Levee Repair Drainage Improvement Description of Work: This work involves installation of perforated underdrain pipe, catch basins, pump station, force main, excavation and grading, asphalt repair, relocating chain link fence and gates, erosion control and other work. Construction Estimate: $270,000 to $360,000 All bids received will be opened in public at the time and place stated above and all bidders and other interested persons are hereby invited to be present. Pre -Bid Site Inspection /Conference A pre -bid site inspection meeting will be held on , at , the project manager, at , or at if you plan to attend. 00050 -1 . Contact z _ W; U - O; W W I. -J cnL1 O, g - w a; d W Z F- 0 Z ui U0 CO ;C1 w W;. Ui 7. • N' O 1 King County Segale Levee Repair Drainage Improvement Foreword Section 00040 Foreword Bid No.: C00000C The documents and forms which appear herein or for which provision has been made, must be used in submitting proposals for: Project Location: Segale Levee Repair Drainage Improvement Section 35, Township 23N, Range 4E, WM Tukwila, Washington East of Andover Park West along west bank of Green River. Bounded by S 180th Street and Segale Park Drive in Tukwila, Washington. The documents and forms are enumerated in Section 00030 - Table of Contents and include the Drawings and Specifications. Copies of said Bid Documents, Drawings, and Specifications may be obtained upon application at the King County Professional and Construction Services Procurement Division, 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division, Seattle, Washington 98104, upon payment of a non - refundable fee of $15.00 for each set. END OF SECTION 00040 -1 z _ 1- w JU U0 :- N w;. w= . w 0' •X w' l--O • w w: :O Vii• .w H.V .r=dpi _Z U .. I .O Z • Rine County • Section 00035 Segale Levee Repair Drainage Improvement Definition of Contents 1.03 Definition of Terms A. Wherever reference is made in the WSDOT Standard Specifications to the Secretary of Transportation or Engineer, such reference shall be construed to mean the Project Manager or his duly authorized assistants. Where reference is made to. the State or Contracting Agency, such reference shall be construed to mean Owner. z im z; JO N W =I. • . H W }}c. • • Ji I- o z .10.—i . ;111'W . 1— ~': END OF SECTION 00035 -2 King County Section 00035 Segale Levee Repair Drainage Improvement Definition of Contents Bid No.: C00000C SECTION 00035 - DEFINITION OF CONTENTS PART 1 - DEFINITION OF CONTENTS 1.01 Reference Sections A. Section 00950 Drawing Index 1.02 Contract Documents A. The Project Manual and Project Drawings contain all Contract Documents including the Bidding Documents; all Specifications and Drawings; the Contract forms and all Addenda issued prior to bidding as defined in Section 00700 - General Conditions. 1.03 References A. The following publications shall be used in conjunction with the Special Provisions included in the Contract Document. 1. 1994 Standard Specifications for Road, Bridge, and Municipal Construction, issued by the Washington State Department of Transportation and the American Public Works Association, Washington State Chapter. This reference will hereafter be cited as "WSDOT Standard Specifications ". 2. 1993 King County Road Standards issued by King County. This reference . will hereafter be cited as "King County Road Standards ". B. Where conflicts exist, the Special Provisions supersede the WSDOT Standard Specifications and the King County Road Standards. The WSDOT Standard Specifications, except as they may be modified, supplemented or superseded by these Special Provisions shall govern all phases of work under the Contract Documents and they are by reference made an integral part of these specifications and Contract Documents as if herein fully set forth. D. Copies of the WSDOT Standard Specifications and King County Road Standards are on file at: King County Surface Water Management Division, Department of Natural Resources, 700 Fifth Avenue Key Tower, Suite 220 Seattle, Washington 98104 Attention: Mike O'Neil, P.E., Project Manager (206) 296 -8305 FAX: (206) 296 -8032 00035 -1 z re 2w, 6 DI 1U: U O U ' �nw w =, J w o LL Q: (0 d: = w` z1 o z . ILI La 0 0: ID Di :0I-; w u.i z' U� O)- i. z King County Segale Levee Repair Drainage Improvement Section Description Section 00030 Table of Contents Bid No.: C00000C Number of Pages 16402 Motors 6 Attachments to Section 16402: 16403 Motor Data and Test Report 2 16900 Controls 8 16904 Control Panels and Electrical Cabinets 6 • END OF SECTION 00030 -4 z t Z4, try! :6 . JU: .0 O CO U, • cn w_ ; .w }0r g•}1" • • lL Q' 'co. • _� • ;p U' ' w lJ' • • • ;U , . Z. King County Segale Levee Repair Drainage Improvement Division 1 - General Requirements (Continued) Section 00030 Table of Contents Bid No.: C00000C ction Description Number of Pagea Se z 01700 Contract Close Out 5 • '_ 1'' Attachments to Section 01700: W 01701 Notice of Completion and Final Acceptance Letter 1 • 6 01702 MWB Final Payment Approval Form 1 L) .J U U O u0 .N 111 =; Division 2 - Site Work ccoo.H. LL W o Numb_er of Pages • 02000 co ¢.. 02100 Site Clearing 3 = w, 02207 Aggregate Materials 3 z ='. . 02270 Sloe Protection and Erosion Control 3 ~' • 02271 Petroleum Product Spill Prevention and Control 3 Z • 1 • 02831 Chain Link Fence and Gates • 3 ;2 n! .D.o, Division 1.1 - Equipment W W H V'• Section Description Number of Pages u. o Z, 11005 • General Requirements for Equipment 15 v N', 11304 Submersible Pumps 15 0 Section Description Section Description Division 16 - Electrical Number of Pages 16010 Basic Electrical Requirements 7 16050 Basic Electrical Materials and Methods 12 16111 Raceways 10 16120 Conductors and Cables 6 Attachments to Section 16120 16121 Electrical System Data and Test Report 1 16400 Service and Distribution 13 Attachments to Section 16400: 16401 Electrical System Descriptive Data and Test Report 1 00030 -3 4 -0.'nyt King County Segale Levee Repair Drainage Improvement Division 0 - Bidding and Contract Documents (Continued) Section 00030 Table of Contents Bid No.: C00000C Section Description Number of Pages zz • z. 00500 Notice of Selection 1 w� ' Attachment to Section 00500: 6 D 00501 Notice of Selection Sample Form * -., v' 00510 Construction Contract, Bonds. and Certificates * coo.; Attachments to Section 00510: w; 00511 King County Owner /Contractor Agreement * _11_, 00512 King County Performance Bond N LL, 00600 Release.of Liens, Certificate of Compliance 1 2 O Attachments to Section 00600: g 00601 Certificate of Compliance 1 u.. ai 00602 Release of Liens Certificate (General Contractor) 1 c a; 00603 Release of Liens Certificate (Subcontractor /Materialtnen) 1 w, 00700 General Conditions of the Contract 1 z x'; Attachment to Section 00700: F- O; zE 00701 King County General Conditions of the Contract * w w, 00800 Supplementary Conditions 9 2 o' Attachment to Section 00800: o �, 00801 King County Certificate of Insurance * ,o F. 00802 List of Hourly Prevailing Wage Rates * w w' 00900 Addenda and Modifications 1 1 °I Attachment to Section 00900: `� ~' O, 00901 King County. Addendum Sample Form 1 Cu 00950 Drawing Index * '� O I— Division 1 - General Requirements Section Description Number of Pages 01010 Summary of Work 3 01020 Special County Requirements 2 01025 Measurement and Payment 2 01030 Contract Time and Sequence 3 01045 Cutting and Patching 4 01060 Regulatory Requirements and Standards 1 01100 Base Bid and Alternates 2 01200 Project Meetings 1 01300 Submittals 5 01400 Quality Control 7 01500 Construction Facilities and Temporary Controls 5 " 01600 Products and Substitutions 3 01650 Demonstrations 2 00030 -2 z... King County Segale Levee Repair Drainage Improvement SECTION 00030 - TABLE OF CONTENTS PART 1- UNBOUND PACKAGE Section 00030 Table of Contents Bid No.: C000000 z Description Number of Pages w = 0. Identification Sticker * u6 J U: 1. Form of Bid * V O: 2. Contractor's Declaration of Minority /Women's Business (M/WB) Participation * i 0 w" 3. Personnel Inventory Report *W, _ H 4. Affidavit and Certificate of Compliance King County Code Chapter 12.16 * u) U-: 5. ADA/504 Disability Assurance of Compliance and Corrective Action Plan * w O: 6. Sworn Statement of Compliance with King County Code, Chapter 12.16 (Union, and/or Employee Referral Agency) * u_ Q. 7. Declaration of M/WBE Status * Cl) 8. Subcontractor List * x w _:. ? f-' I--0`. Z I- • PART 2 - BOUND PACKAGE w w: Do Division 0 - Bidding and Contract Documents ;p Di o� Section Description Number of Pages i W` H U 00010 Notice to Bidders , 1 LL z 00020 Project Information and Design Team 2 w N‘. 00030 Table of Contents 4 r_ _ 00035 Definition of Contents 1 z 00040 Foreword 1 00050 Invitation to Bid 2 00100 Instructions to Bidders 7 Attachment to Section 00100: 00101 Environmental Requirements 4 00102 General Project Information 1 00200 Information Available to Bidders * 00300 Form of Bid 5 00350 Guarantee and Warranty 1 00400 Supplement to Bid Forms, M/WB Participation 7 Attachments to Section 00400: 00401 Contact Agencies for Locating M/WB Subcontractors and Suppliers 1 00402 Declaration of M/WB Participation * 00403 Affidavit and Certificate of Compliance * 00404 Personnel Inventory Report * 00405 Sworn Statement of Compliance (Union and/or Employee Referral Agency) * 00406 ADA/504 Disability Assurance of Compliance and Corrective Action Plan * 00407 Declaration of M/WBE Status * 00408 Subcontractor List * 00030 -1 King County Segale Levee Repair Drainage Improvement Project Information and Design Team Section 00020 ...v.. 1 iujeL. Ken Gresset King County Surface Water Management Division Department of Natural Resources . 700 Fifth Avenue Key Tower, Suite 2200 Seattle, Washington 98104 Phone: (206) 296 -8314 FAX: (206) 296 -8032 2.03 Consultant: Design Jack Bjork, P.E. R.W. Beck 2101 Fourth Avenue, Suite 600 Seattle, Washington 98121 -2375 Phone: (206)441 -7500 FAX: (206) 441 -4962 2.04 SubConsultant: Geotechnical Greg Fischer, P.E. Shannon & Wilson, Inc. 400 N 34th Street, Suite 100 Seattle, Washington 98103 Phone: (206) 633 -6876 FAX: (206) 633 -6777 END OF SECTION 00020 -2 Bid No.: C00000C King County Section 00020 Segale Levee Repair Drainage Improvement • Project Information and Design Team Bid No.: C00000C SECTION 00020 - PROJECT INFORMATION AND DESIGN TEAM PART 1 - THE PROJECT 1.01 Project Name Segale Levee Repair Drainage Improvement 1.02 Project Location East of Andover Park West along west bank of Green River. Bounded by S 180th. Street and Segale Park Drive in Tukwila, Washington. 1.03 Description of Work This work involves installation of perforated underdrain pipe, catch basins, pump station, force main, excavation and grading, asphalt repair, relocating chain link fence and gates, erosion control and other work. King County Surface Water Management Division Department of Natural Resources 700 Fifth Avenue Key Tower, Suite 2200 Seattle, Washington 98104 1.05 Contracting Agency King County Professional and Construction Services Procurement Division 821 Second Avenue, Exchange Building, 12th Floor - Contracts Division Seattle, Washington 98104 PART 2 - DESIGN TEAM 2.01 Project Manager Mike O'Neil, P.E. King County Surface Water Management Division Department of Natural Resources 700 Fifth Avenue Key Tower, Suite 2200 Seattle, Washington 98104 Phone: (206) 296 -8305 FAX: (206) 296 -8032 00020 -1 • ::satin - mitggair Piiis?:siYJAA.•ccs'. -. _ :44.4:44; %c�ii4JAN'ii7�iiHi+6lidv v&ti{ticrivY iaUS.tiu i*= :a'l�e?til;�`wuiS'd' a.'a •., � .'4i i=''wi:i1(.h•`. z �W JU U0 to 0'. u) J w 0; aa,�' w <. co 2, Z; z z Off; Um w w} U` - Z{ U N; Ham;. O z. King Count, Segale Levee Repair Drainage Improvement Section 00010 Notice to Bidders Bid No.: C00000C Submitting Notice to Contractors For the Construction of: SEGALE LEVEE REPAIR DRAINAGE IMPROVEMENT Section 35, Township 23N, Range 4E, WM Tukwila, Washington for King County, Washington Pam Bissonnette, Director Metropolitan/King County Council Maggi Fimia - Cynthia Sullivan Louise Miller Peter von Reichbauer Brian Derdowski Larry Phillips Larry Gossett Jane Hague Ron Sims Bruce Laing Chris Vance Greg Nickels Kent Pullen King County Professional and Construction Services Procurement Division 821 Second Avenue - Exchange Building 12th Floor - Contracts Division Seattle, Washington 98104 . Project Manager: Mike O'Neil, P.E. King County Surface Water Management Division Department of Natural Resources Phone: (206) 296-8305 FAX: (206) 296 -8032 Date: END OF SECTION 00010 -1 King County Segale Levee Repair Drainage Improvement Section 00000 Section Dividers Segale Levee Repair Drainage Improvement Project 089504 Division 0 - Bidding and Contract Documents CONTRACT SPECIFICATIONS FOR Segale Levee Repair Drainage improvement (East of Andover Park West along west bank of Green River) • • y Contract Document For the construction of: Sega le Levee Repair Drainage Improvement (East of Andover Park West along west bank of Green River) Contract No. C C Project No. 089500 King County Dept. of Natural Resources Pam Bissonnette, Director 1996 • • 71. 4 \ X • • • DEPARTMENT OF NATURAL RESOURCES. PAM BISSONNETTE DIRECTOR — DESIGNEE • t • • , . SW 43RD. ST. SW • SHEET DESCRIPTION 1 • COVER SHEET ' 2 ,:• PLAN AND PROFILE 3 PLAN AND PROFILE ,• . 4 PUMP STATION 5 FORCE: MAIN AND: DETAILS 6 DETAILS 7 • ELECTRICAL PLANS AND ELEVATIONS: 8 ELECTRICAL DETAILS • EGALE LE AINAGE I 'RECEIVED' • JUL 1 0i1996. • bovdviuNirc „ . DEVELOPMENT , SURVEYED: BASE MAP PLOT: DESIGN: PLOT: • CHECKED*. FIELD. BOO(: FED AID No .'PROJECT - SURVEYNo MAINTrENANct:pyiwN No IM:112317147/11111 COUNTY DEPT. oF:NATURAL RESOURCES SEALE LEVEE REPAIR SURFACE WATER MANAGEMENT DG IVISION PAM DISSONNETTE,. DIRECTOR DESIGNEE „ •,.;w - DRAINAGE IMPROVEMENT 111111111'Ilpli I1IlII II.IIII 111.1,1 I I I I 6 „, , . 01, LI 91 •••••":' • •.• A -3: .77...-;'7F":75.71:7':".•.i.."7577.P.:',7•:!. BEGINNING OF PROJECT : #1 . STA. 0+00 • .• / ('ORfENSR E' APPROXIMATE EDGE OF EXISTING ASPHALT ' 1.ze4 cv alto • 45.64 _ N 24'58'4_3"E -42.24 s• '3 717 RL :CtiNC. PAD zic? 1: (040'52'11"E „ 1 - 1 Nt- RELOCATE CONC. 14,4 .11 BARRIERS la 1N1 ..,IlI NEW PERMANENT RIGHT OF ENTRY 8 SEE NOTE 8 STA. 2+19 • EXISTINO PERMANE OF NTRY • . 119• . . '4 3+87 CONDENSE CONC. PAD ORMER 'pAD e 66.71 • S. 3017'064W , N(jRril • .4,0Pr DiAIC 20 CB 112 GRAVEL STA. 0+80 01:4 0 66 03.59" S ATV 83.68 „ 16'10'11 .04 *MO A.00 ,s,v4 s •■Z30'5 '33 . ee • 0 a ... AREA INLET TOP 22,8 ' • . SS V EEE INNOTE20.56 • CSN/SE- ce __p 23 , „......,..30„..4a41\n'ILN 2•04,LI 4 SEE SHEET 4 ES 70 CB .,,,...,7C11113..1.144/:,... ' - ,... ' _7TA__6_._+5,0, 5 --4-1"<-r4/4.1, "9,-,..4 PUMP STATI 8------___ c,a4vc.i. i ---...........,.... „. - 1 „., 30 SEE NOTE 8 • , . , . . . . . . , • • • NOTES: . , . . 1. - . • DATUM:' VERTICAL 7 NAVD 1988 - Qs; SURVEY FEET. ' HORIZONTAL 7 NAD. 83/91 -WASHINGTON ZONE NORTH 4601, (GPS). 2. CONTOURS ON EAST SIDE OF LEVEE ARE APPROXIMATE . • . 3. EXCESS MATERIAL IN THIS AREA . BE USED AS SHOULDER BALLAST FOR FILL. , . . + , . 4. REMOVE ONE 'OF TWO 10' WIDE GATES. GRADE AS NECESSARY SOUTH 0 OF . GATE TO PROVIDE 10 CLEAR BETWEEN TANK PAD & TOE OF FILL. • 4 - 5. AREA INLETS SHALL BE IN ACCORDANCE WITH WSDOT / APWA STANDARD PLAN B-201, OR EQUAL: LOCATE IN FRONT OF PEDESTRIAN DOOR. En 6. CONSTRUCTION ACCESS FROM ANDOVER PARK 'W. IS AVAILABLE AT BOTH ENDS & BETWEEN THE NORTH & SOUTH BUILDINGS. - LL1 7. THE CONTRACTOR SHALL COORDINATE CONSTRUCTION ACTIVITIES WITH THE Z WAREHOUSE TENANTS IN THE. NORTH & SOUTH BUILDINGS. • . 7:1 = 8. FIELD LOCATE EXISTING MONITORING WELLS. PROTECT WELLS DURING p GRADING & EXTEND 2. ABOVE FINISHED GRADE IN AREAS BEING FILLED. .M. 9. PIPE SHALL BE ASTM 3034, SDR 21 OR -THICKER & SHALL BE IN ' M ACCORDANCE WITH WSDOT/APWA SPEC. 7-01: -.PIPE SHALL HAVE 3/e HOLES IN ACCORDANCE WITH MSHTO M 278. . 0+80 RATED PVG UNDERD PIPE 124 DIAM. 111•11M MEM ---24--- . 23 • x26.2 s<22 S R.L. APPROXIMATE UNITS' OF GRADING AND EXCAVATION STORM DRAIN UNE PROPOSED CONTOUR EXISTING' CONTOUR PROPOSED SPOT ELEVATION EXISTING SPOT ELEVATION PROPOSED RIGHT OF ENTRY EXISTING RIGHT OF ENTRY 'CATCH BASIN TYPE 2 CATCH BASIN TYPE 1 AREA INLET EXISTING ROOF ,LEADER R PAIR OF WIDE GATES. COORDINATE TABLE POINT NORTHING EASTING NE CORNER SOUTH BUILDING 162489.47 1648601.43 SE CORNER SOUTH BUILDING 162502.24 1648381.84 CB #1 STA. 0+00 161972.71 1648120.48 CB #2 162436.95 1648291.60 CB #3 162078.40 1648230.76 CB #4 162227.66 1648307.54 PUMP STATION 162427.09 1648468,69 FENCE ANGLE POINT A 162432.35 1648599.92, FENCE ANGLE POINT B 162450,57 1648663.69 FENCE ANGLE POINT 0 162432.49 1648727.40 APPR OF GRAD EXCAVATION 1•2`.:f , _.....SEES--NEE_OT NOTE ...3.____ . ----___ -------___ STAND PIPE-----,SEE • --PARTIAL PLAN SREET511,_....... .----___ --..._ FORCE-AWN -- ----.. --.. -----15SEE SHEET 5---1 .--,'",-7----„,... ------.' •5' ' 11)------, -_,..------- / Qt,----__-/------ ,- -------" ,----- .---, .. ---____ ---,---- --...,........s ------___ TOP • Cj- • 1.%■" CALL 2 DAY- jiEFORE YOU DIG ,c5 35 31 ..•••• SURVEYED: • BASE MAP PLOT: DESIGN PLOT: CHECKED: FIELD BOOK:' APPROVEO: LarrFIY RR, .;:Ibbpb0D1190 DAD: OROJECT; ; MANAGER: li3y G KING COUNTY DEPT. OF NATURAL RESOURCES BISSONNEITE, DIRECTOR - DESIGNEE SURFACE WATER 'MANAGEMENT .DMSION RE SEGALE LEVEE REPAIR sut.:1-P .:•.DRAINAGE IMPROVEMENT REVISION ; • • ••• 111111111111111l4i1111111111112 111111111117111111111111,11111.111111111111111111111116 1 7 t • 3^ C.‘ ()r. E 7 or---2gi 1 ZI 911 • • .k1 TOP 24.1 +8 EXISTING PERMANENT RIGHT OF ENTRY . 1 . STA. 5+65 ' . .. STA. 10 +12 OG� .. Irs: 2 .. i Ct'E7f0/�/►1 i . / ....II 1x28 7 5 PPP pS,,,,.q..\. � �2•> —_� 2 s • ,2.6 i 1- `xc - /�! • .:4- .�'�9 ' 3 s••�/ ,RC ' �2 > N 3T6'4�9E'' . N 24.85 OT 18.13; W ,��23/` i' j z�'���/ '' 22 " ' r �' T'y` .- 50'S"E 2 1 22 , i -S-------- / ar '' __ 2. 23 .. p�, ', r �`.�� -iii. .i I ,- /j'�"5 //' ar i' ° 2 � 05 a ��<f� . a�! ��� i�.� .. �•�/ ��. �- o NOTE 4 -+® N I 75.44,' u. c f7 I '� 25� 2 i/ _� .1 %�� GR4V �S(0pf TO- w .EY,15T. W z�_- �- 6 -'; !' 52.12 EC —C8 1 75.8 N PE TO 5 1418'.13. z%s.c // '' i��' f7F __46. 29.45'58' POINT NORTHING FASTING CB /5 ;; 162805.16 1648599.58 CB #6 �' 162735.20 • 1648668.11 CB #7 'STA.12 +69.00. 162987.40. . 1648717.75 DATUM: VERTICAL • NAVD 1988 US SURVEY FEET. • HORIZONTAL NAD 83/91 WASHINGTON ZONE NORTH 4601 (GPS). CONSTRUCTION ACCESS FROM ANDOVER PARK W. IS AVAILABLE AT BOTH ENDS & BETWEEN THE NORTH & SOUTH BUILDINGS. THE CONTRACTOR SHALL COORDINATE CONSTRUCTION ACTIVITIES WITH THE WAREHOUSE TENANTS IN THE NORTH & SOUTH BUILDINGS. FIELD LOCATE EXISTING AJltMONRORING WELLS. PROTECT WELLS DURING GRADING & EXTEND 2 ABOVE FINISHED GRADE IN AREAS BEING FILLED. PIPE SHALL BE ASTM 3034 SDR 21 OR THICKER & SHALL BE IN ACCORDANCE WITH WSDOT /APWA SPEC. 7 -01. PIPE SHALL HAVE 3/8' HOLES IN ACCORDANCE WITH PASHTO M 278. .APPROXIMATE UM RS OF GRADING AND EXCAVATION STORM DRAIN LINE r -- -24 - -- PROPOSED CONTOUR . 2 i EXISTING CONTOUR x26.2 PROPOSED SPOT' ELEVATION' ^22,8 EXISTING SPOT ELEVATION — • —. • — :'PROPOSED RIGHT OF ENTRY — — EXISTING RIGHT OF ENTRY 'N SURVEYED. BASE MAP PLOT: DESIGN PLOT: CHECKED: FIELD BOOK. 10 +00 FED. AID No. • ;PROJECT No.• • SURVEY. No :. MAINTENANCE 'DIVISION No 11+00 12 +00 .: .13 +00'.,;; KING COUNTY DEPT. OF . NATURAL RESOURCES PAM 81SSONNETTE, DIRECTOR — DESIGNEE ' ` SURFACE WATER . MANAGEMENT DIVISION $EGALE. LEVEE REPAIR:. Rccivi 1 DRAINAGE IMPROVEMENT I JUL 019 r^�^�'� DEV LOPiY' I i' • • II� IIII IIIIII IIJ l IIII�II I� I��I I�III�I I�IIIl I �.I��III�1{IIIf I�1II�I I�III� II�II II� 1'L -. 2 3• A "r• 5 6 01: fill e17‘ dl7•._9I7. SIE VE s(7. .FIE 1Iz. O1 jJ1 8I1 Lit 9II uuhuduu mdiiii uuluu uuluu mdmi mduu iuihmlimlmi imFiui uulmi mdmi mdiiii mduu mdiiu mihu INSECT SCREEN ACCESS DOOR EL. 24.10. GALV. STEEL A----- 11-7—\\116,, ri 1461,'°°41=44% ,,....,,,,.4.4,.._ „..,,A,........,"wo, ... =I Inminim mI inimirsraiqp•To FLEXIBLE COUPLING tA . A ‘44444" ErvALvESWINCAIECK el GATE VALVE 1 12" INFLUENT 1 • oo LIQUID LEVEL • SENSOR CTYP.) EL 16.50 • I.E. 12" INFLUENT & HIGH WATER ALARM EL 16.00 LAG PUMP ON EL 15.50 LEAD PUMP ON PLAN BELOW GRADE SCALE: 1/2' = 1.—o" (0145. BEND FUR_ 18• SPOOL 8" DI FORCE. MAIN SECTION ' SCALE: 1 /2" = 1.-0 • NOTES: 1. BACKFILL FOR PUMP STATION iHALL BE SPECIAL FILTER MATERIAL. • PAY LIMITS "'ARE AS SHOWN, 2. VERIFY DIAMETER OF PUMP .61SC HARGE • PIPING WITH 3. PUMP MANUFACTURER. VERIFY PUMP LAYOUT WITH PUMP MANUFACTURER. 4. GATE VALVES SHALL BE IN ACCORDANCE WITH AWWA SURVEYED: BASE MAP PLOT: DESIGN PLOT: CHECKED: 9001<: AppRovED1 'Larry R. Gibbons . ED.:-Alt; No ••• ' • P,ROitaT ,No. SURVY No MAINTENANCE DIViSON No SCALE: 1/2" KING COUNTY DEPT OF -NATURAL RESOURCES PAM INSSONNETTE. DIRECTOR — DESIGNEE , SURFACE WATER MANAGEMENT DMSION, ' SEGALE LEVEE REPAIR DRAINAGE -IMPROVEMENT I 1 11 1et11iol 1 z z r €it 1911 L111111111111 111111111111111111111dll1111111111111111111111111111i111111111111111111illillhall1111111111111111111111111111111111 111111 •, • EXISTING COIR (TYP.) TRENCH BACKFILL SHALL BE NATIVE .LEVEE MATERIAL COMPACTED TO 95% OF MAXIMUM DRY DENSRY (ASTM 01557 MODIFIED PROCTOR) MAXIMUM SOIL UFTS SHALL BE r NEW TOP SOIL • . NEW 1,111.LOW CUTTINGS NEW BURLAP SAND BAGS NEVICOIR NOTES: 1. FORCE MAIN SHALL BE INSTALLED IN ACCORDANCE WITH APWA SECTION 7-09, 7-10 AND 771, NO DISINFECTIOWREQUIREC • , .t., . . • • . 2. THE EXISTING SUBSURFACE AND SURFACE FEATURES-SHALL • . BE RESTORED TO EXISTING CONDITIONS. • ;.: :; 3: RE INSTALL EXISTING ROC( LAYER EXCEPT THAT11401,ROCKS, LARGER THAN 3" DIAMETER. ARE ALLOWED WITH 11' 7 OF ':.PIPE.• NEW e TOP' BOIL RESTORE SURFACE TO . EXISTING CONDITIONS EXISTING COMPACTED SAND AND GRAVEL 8" FORCE MAIN TRENCH BACKFILL SHALL BE NATIVE LEVEE MATERIAL COMPACTED TO 95% OF . MAXIMUM DRY DENSRY (ASTM D1557 MODIFIED PROCTOR) MAXIMUM 'SOIL UFTS SHALL BE •COMPACT SUBGRADE TO 95% OF MAX. DENSRY 24 - 30" FORCE MAIN TRENCH ("TYPE B) NO SCALE SURVEYED:. BASE IMP PLOT: DESIGN PLOT: CHECKED: FIELD BOOK: AREA BELOW PIPE REMAINS UNDISTURBED SECTION NEW DI, FORCE MAIN ' • • REVISION pipRavEDi Larry ;R ....Gibbons IPATNA) G4ECErR:.. Larry ,:R.'• Gibbons ' DESIGNED JCR DTE DRAWN ... UN DATE 4/3/96 1.1111111111111111111111111111111111111111111;111111r111111111111111111111 I I 21 I • • 1 • '1 p „77 7. gi n a i111111111 I I 11[i hill i iII i l ml I hi? • ;r • ••, • ..••■•■■ tr. — BUILDING X. 18 "THICKNESS FILTER , (MAAST)1 1 DfNILDIFIED20OCT PR. OR) •-EX 1 . ICKNESS • 15 1/2.7r WASHED GRAVEL •'-EX. :3', THICKNESS -• r-ErOUARRY SPALLS • .18.THICKNESS FILTER AZ BUILDING o I.., , arim g .IA6L ,.61..., -. ., R .. BE • . . ..., • . A 1.111Ei GRADFINISHEED • rimpimmil..... ., roim......-.- 4 gyi '—''HMIMIIIIP. 4741.--:,--,..711agriumPEOTEr" milmmiwir•zial 4 -.0.1■■•04111i ' !,i. ,lossolsammer-- -. PER PVC • UNDERMAIN PIPE 12". 0 , -EX 3' THICKNESS ' • . • • • . • 4".-8“ QUARRY SPALLS •s-EX. 1ErTHICKNESS FILTER • • • • • . CUT.'OF EXISTING ' PAVEMENT • SHALL 'BE VERTICAL-AND IN A , - • 'STRAIGHT.. UNE.. EDGES. OF • • • EXISTING . PAVEMENT TO BE • . . , • • • • MATCH EXISTING THICKNESS - • , ',WEARING • COURSE ASPHALT • CEMENT CONCRETE, CLASS •EI • • p 0 -flo oclo o 00 cS 0 0 00 O. "c?OcS),,Fs oc), ocy, 0„0 0 0 00 oo 0 EXISTING BASE o 0,1orq•°,:p (P.°-4-10°C) cze. ‘06° 6Z-P‘n%00.00°0 .s000cdo op,-00 00 o 0 03 o .0 b"c3 •0°.0 0. 0 • 0000 • 'I Er MIN. COMPACTED DEPTH CRUSHED SURFACING TOP COURSE , AT CONTRACTORS OPTION SPECIAL FILTER MATERIAL COMPACTED TO 90% MAX DRY DENSITY (ASTMD 1557 MODIFIED PROCTOR) PERFORATED PVC UNDERDRAIN PIPE 12 DIA PAY IJMITS TRENCH DETAIL • NO SCALE SURVEYED: BASE MAP PLOT. DATE•' REVISION • • " • APPROVED • Lorry R Gibbons ••• : • ••.' •:•;.;;;,• PROJECT "- Larrj,k.liGibboribr ' • .• • mANASER:: , • •DATE!.•• -• • DESIGNED: JC13:. •,• DATE • !'"••••ti. DRAWN PMB 4/30/96 : • .•: • 'FED. .AID No. PROJECT No SURVEY 'No. •.. . KING courkify`.. DEPT OP NATURAL RESOURCES . pAkomssoNtierri SURFACE WATER MARAGEMERT::DNISIOR:.: • , ' SEGALE LEVEE -.REPAIR ' DRAINAGE:IMPROVEMENT MAINTENANCE kDIVISION NO 11111,1111111111111111111111 XPIIEA'.113LLL 96 IXQIGIKYEETLI:1111 2 411 1,111,1 III 1.1,1,1d.1111111111111111111111 . „ or VLLOPMCNT .... ...:—. BUILDING • • m i. ,.. • 35 ... • SHOULDER BALLAST. . .. • . '. I , 323 i ...air MAX. DRY ENSITE • (ASTMD 15.7 MODIFIED PROCTOR) . GRADE 14: 3c N EXISTI25 4 ,,,EWill ElEgraigr a. • d ill -.14 Ex 1 ErTH 1/2•-r CKNESS • .• ASHED. G 1 tr , • ., • EX. • 3' ICKNESS • • • . CUT.'OF EXISTING ' PAVEMENT • SHALL 'BE VERTICAL-AND IN A , - • 'STRAIGHT.. UNE.. EDGES. OF • • • EXISTING . PAVEMENT TO BE • . . , • • • • MATCH EXISTING THICKNESS - • , ',WEARING • COURSE ASPHALT • CEMENT CONCRETE, CLASS •EI • • p 0 -flo oclo o 00 cS 0 0 00 O. "c?OcS),,Fs oc), ocy, 0„0 0 0 00 oo 0 EXISTING BASE o 0,1orq•°,:p (P.°-4-10°C) cze. ‘06° 6Z-P‘n%00.00°0 .s000cdo op,-00 00 o 0 03 o .0 b"c3 •0°.0 0. 0 • 0000 • 'I Er MIN. COMPACTED DEPTH CRUSHED SURFACING TOP COURSE , AT CONTRACTORS OPTION SPECIAL FILTER MATERIAL COMPACTED TO 90% MAX DRY DENSITY (ASTMD 1557 MODIFIED PROCTOR) PERFORATED PVC UNDERDRAIN PIPE 12 DIA PAY IJMITS TRENCH DETAIL • NO SCALE SURVEYED: BASE MAP PLOT. DATE•' REVISION • • " • APPROVED • Lorry R Gibbons ••• : • ••.' •:•;.;;;,• PROJECT "- Larrj,k.liGibboribr ' • .• • mANASER:: , • •DATE!.•• -• • DESIGNED: JC13:. •,• DATE • !'"••••ti. DRAWN PMB 4/30/96 : • .•: • 'FED. .AID No. PROJECT No SURVEY 'No. •.. . KING courkify`.. DEPT OP NATURAL RESOURCES . pAkomssoNtierri SURFACE WATER MARAGEMERT::DNISIOR:.: • , ' SEGALE LEVEE -.REPAIR ' DRAINAGE:IMPROVEMENT MAINTENANCE kDIVISION NO 11111,1111111111111111111111 XPIIEA'.113LLL 96 IXQIGIKYEETLI:1111 2 411 1,111,1 III 1.1,1,1d.1111111111111111111111 . „ or VLLOPMCNT 77, ..• • " • • , . • •. = , CABINET UGHT, .ENCLOSED • 100W INCANDESCENT sou-n-1 •BJLDC • O0-' SHED ---- . -- - ----- -77 ------ - „ --- ExmiNG.R0,- MOUNTED ; TRANSFORMER.' SEE NOTE 2 • . •,•••;120/:2c40;11cVyACIT s'IREAK_PHASERsE.,.u3NW(ESsNi 0111100Am:04i, • • •• " • '2861 POLE 'ANEL , BOARD P ASPHALT': LOCATE NEW CABLE WITHIN EXISTING RIGHT OF* ENTRY.' •, SEE SHEET 2 FOR LOCATION •OF RIGHT OF ENTRY GROUND ROD SHEET 10 SEE DETNL TOP SITE PLAN OF LEA, DIRECTORY • , CABINET. LIGHT •1 RECEPTCLES, SPARE,' ••)'' 5 ' SPACE " ' . DIRECTORY • METER SOCKET SEE NOTE 4 SERVICE MAIN . . „ 8.ECTMCAL CABINET NeiAl2, WITH, RAIN CAP,. 3-POINT' ROLLER • LATCH HANDLE & RDAOVABLE..s.' •-•.••;' ' CENTER • POST. SHOWN WITH , DOORS REMOVED, SEE NOTE': ..,,,PaWcAl320)7ECEPTACLE, . . POWER RECEPTACLE CABINET HEATER AUTODALER SPARE SPACE WP: DUPLEX RECEPTACLE VI/ LOCKING COVER SCALE: 1 40'-0" NORTH BUILDING / / / / / / / / / / / / / / / / / / • o- 4' -0" MIN. APPROX. CABINET /— 2' 3/4' C.J1--; Cri 51° ? 4?% 91 1 I I .1 r c. —4-4s1 I 1" c. 2TSP • 4 POWER 11 / • . 1 1/2" C, 4 #4 SEE NOTE 7 STUB OUT 1•-C• &. TERMINATE W1TH BUSHING 8." TELEPHONE • SPARE STUB OUT •-8" & CAP BOTH ENDS, •YP. PANEL SCHEDULE STRIP HEATER GROUND BUS 1/4 X 1 cu,, • 1 CONCRETE PAD ' • SEE DETAIL 1, SHEET' 8 • -/ ' I / //1/ 1X\ // /4/ ELECTRICAL CABINET ELEVATION NO SCALE APPROX. 20' • , 1 1/2' C, MANUFACTURING :,-•-1=8.• 3/4" C, - POWER AND SENSING CABLE I I ' • MANUFACTURERS WAI1 PENETRATION TYP. SEE DETAIL 3, SEE SHEET 8 OVERHEAD; .;'"..1,.:.• HATCH „ • PUMP, rni. • .• . L. • . , T HF 15 %-11-/ 5KVA 480-240/120, 1 $ ,_v-v-,•-• XFMR 15 3 15 MCP MCP • • POWER PHASE . PANELBOARD '•'• RECEPTACLE MONITOR • P • SURVEYED: BASE MAP PLOT: DESIGN PLOT: ' CHECKED: FIELD BOOK: STATION .PLAN SCALE: 1/2" w. 1'-O' • ONE LINE DIAGRAM PUMP 1 PUMP 2 NOTES: 1. PAD MOUNTED ELECTRICAL CABINET, ' • ADJACENT TO NORTH BUILDING. - " • CONNECTION TO EXISTING. TRANSFORMER • REQUIRES A SCHEDULED POWER OUTAGE. COORDINATE WITH „UTILITY. , • 3. MOUNT RECEPTACLE BETWEEN 3 8e 4 FEET . ABOVE FINISHED GRADE. . 4:- MOUNT METER SOCKET PER UTILITY • .REQUIREMENTS. • 5.,Nouirr AUTODIALER AND SINGLE RECEPTACLE ' •• ' • ! • 8. : SIZE CONDIUT & CONDUCTOR INTERCONNECTIONS WITHIN ELECTRICAL CABINET PER THE NATIONAL ELECTRICAL CODE- UNLESS OTHERWISE', • ' NOTED OR SPECIFIED. ALL CONDUCTORS SHALL BE IN CONDUrT..., • L . AL DEVICES SHALL BE NEMA 1 ENCLOSURES, 'MINIMUM. • , ••• • 7. INSTALL V-Ir OF 'SAME SIZED CONDUIT AT 'CONNECTION • • . „ TO UTIUTY..,TRANSFORMER, • 8. COORDINATE 'WORK WITH TELEPHONE UTILITY. a BEFORE 'YOU DIG j,,(.4 A 13004424..466.5'5 ;;45,11 • APPROVED Larry R Gibbons PROJECT Lorry R: Gibbons DESIGNED DEJ 04TEI DRAWN PMB , . •:. • ' ' ••: ()Alt' 4/3/96 96 t • • FED. AID: KING COUNTY DEPT. OF-NATURAL RESOURCES PAM eissomart,oinEcioR DESIGNEE, SURFACE WATER MANAGEMENT DIVISION SEGALE LEVEE REPAIR'. DRAINAGE IMPROVEMENT.,,•:„..' ..‘ PROJECT: 'NO. SURVEY , MAINTENANCE DIVISION No 1-717.A711:311 • 111111111ITITiii41.TITITIT111-11TITITITITitiiiilliiiiii1111111111111161 1 2 PI • 11:( t :IE E LIZ 01. T LIT 911 1111 111111111111Illilti • " • • t • 1 • , - J. • • . : ; • • • OUTUNE OF, ' CABINET 7 1 1/2I DRAIN " FOUNDATION ' ,3/11.41". SST .'ANCHOR - EIF •)EGIN AT EDGE FINISH GRADE • CONCRETE* • FOUNDATION, c=foc, • 8=k3 1'-0* ALL AROUND) jo•sq=?80=,..., #5412 EW, 24- (MIN) COMPACTED DEPTH '11d3 (MIN) OF GRAVEL.BACKFILL . • • • FOR FOUNDATIONS • • . ' REINFORCED CONCRETE PAD DETAL 1 NO SCALE NO 4 BARE COPPER 10 ..: STATION GROUND BUS . •AS.•ApPLIGABLE:". , , „ • COPPER,NELI)ED ; • • ; •HoRtzONTAL•CABLE TO ' . ..CROUNDT00 CONNECTOR • .; • • . No.4•BARE COPPER ,„ • • • 'W.:OTHER:GROUND ROD AS,APR,LIG/8LE GROUND ROD' ,' ".. • GROUt1 CONNECT •••: DETAIL 2 . .."4, ABBREVIATIONS •,• C CONDUIT ETM ELAPSED TIME METER . • :„ : - 's FLOAT SWITCH • ; • • GFI GROUND FAULT CIRCUIT 'INTERRUPTER CND GROUNb. NH • HANDHOLE M MOTOR STARTER , MCP MOTOR CIRCUIT PROTECTOR MS MOISTURE SENSOR • MOT MANUAL TOR • M L TRANSFER SWITCH OL OVERLOADS NITOOAmbOS. PHASE MONITOR PM RECP RECEPTACLE RGS RIGID GALVANIZED STEEL TS TEMPERATURE SENSOR TY VAC AP P C Y CA • • VOLTS, L ALTERNATING L TERNATI:-N;G • CURRENT • WP WEATHERPROOF • • WALL. SLEEVE • CONDUIT FILL WITH WATERTIGHT' SEALANT SYMBOLS • • • TYPICAL WALL PENETRATION • DETAL 3. • •• • • NO SCALE , " L2 L3 Fit' I •••.MCP GROUND BUS • GND EQUIPMENT OR DEVICE IC; • • NAME' TYPICAL NAMEPLATE DETAL 4 NO SCALE • UGHT . • L • N • • • 70 :OTHER ; • • • CONTROLS AND INDICATION TYPICAL .3 PHASE MOTOR DIAGRAM • DETAIL 5 ,•; • NO SCALE •• . 30 3 . -I —H'. CONDUIT OR CABLE, EXPOSED — — . CONDUIT OR CABLE, CONCEALED OR' BURIED, CONDUIT-BENT TOWARD' OBSERVER ' CONDUIT BENT AWAY FROM OBSERVER " MOTOR (NO. INDICATES HR.) • CIRCUIT BREAKER (NUMBER OF POLES AS INDICATED) NUMBER :INDICATES CURRENT INTERRUPTING RATING !": MOTOR STARTER (NO. INDICATES NEMA 'SIZE) TERMINAL FOR EXTERNAL CONNECTION WITH'16, -•' TERMINAL DESIGNATION • - • THERMAL OVERLOAD HEATER NORMALLY OPEN CONTACT NORMALLY CLOSED CONTACT • GROUND CONNECTION JUNCTION BOX • 1 1 • SURVEYED: BOSE MAP PLOT: DESIG N PLOT: CHECKED: Flkii BOOK: APPROVED. Lorry R: 'Gibbons PROJEIIT f.;Laiey R. • Gibbons DATE • 'DESIGNED: 6RAwN:, • UN, PMB .1:.•-,, FED.; AID No.:, '• Lqu- • • -CALL: 2 DAYS BEFORE •YOU:.:,DIG.:: 1 —8op-424.4:5555: KING :COUNTY DEPT. 'OF NATURAIL.RESOURCES . • PAONSSONNETTE, DIRECTOR — DESIGNEE , • SURFACE. WATER MANAGEMENT DIVISION . „ . . -.:!,'.•;,PROJECT No., •. •:•::BUIRVEy .NO, " • MAINTENANCE1DIViSION No ' IT. 2 • :• () Z " 11111111f111111113IIIIII • ,SEGALE LEVEE:;REPAIR DRAINAGE IMPROVEMENT „ "t JUL l'••0 File: L'Ilo-Nra00 35mm Drawing#