HomeMy WebLinkAboutPermit L96-0044 - KING COUNTY / SURFACE WATER MANAGEMENT - TUKWILA 205 LEVEE SHORELINE EXEMPTIONL96 -0044
SEGALE LEVEE
MAINTENANCE
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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
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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
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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
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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
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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 •
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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
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(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
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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
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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
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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
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6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431 -3670 • Fax (206) 431-3665
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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.
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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
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(03/20/95);.
SEGALE LEVEE REPAIR
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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
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NON 6WILSON, INC
OEOTECHNICAL ANO, ENVIRONMENTAL' CONSULTANTS .. •
400 N.. 34th 'St: �' Suiite 100
Box 300303:
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.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
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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.
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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
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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.
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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
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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 •
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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
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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
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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.
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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).
•
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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. • •
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The following sections discuss analyses related to seepage through and beneath the levee and
its affect on levee stability.
9
W- 6873 -01
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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."
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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.
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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.
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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
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Systems Washington Ltd.
12608 -B INTERURBAN AVENUE SOUTH
TUKWILA, WA 98168
TEL (206) 248 -3191
FAX (206) 248 -3313
ATTENTION
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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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)
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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
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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 °:'
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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`
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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 ?
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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 =
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6. Products and Completed Operations Coverage 2
The life of this Contract, "Products'and Completed Operations" coverage for co ,
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D. Minimum Limits of Insurance (Project specific - Verify with Risk Management)
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1. General Liability: $ combined single limit per occurrence for .ilu w
bodily injury, personal injury, and property damage, and for those policies , - 9;
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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
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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)
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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
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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
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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
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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-
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1.05 Article 17, Delays and Extension of Time 2 D.
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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
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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
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4. On Site Overhead: 1 z'`
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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 =`.
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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 •
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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
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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.
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1.02 Article 10, Permits, Laws, and Regulations N u~.
Article 10 is hereby modified by the following condition: 2 i
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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;
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1.03 Article' 12, Tests, Inspections and Access to Work w w:
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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'
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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
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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
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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
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King County
Segale Levee Repair Drainage Improvement
Section 00600
Release of Liens, Certificate of Compliance
SECTION 00600 - RELEASE OF LIENS, CERTIFICATE OF COMPLIANCE
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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
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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
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King County Section 00510
Segale Levee Repair Drainage Improvement Construction Contract, Bonds, and Certificates
SECTION 00510 - CONSTRUCTION CONTRACT, BONDS, AND CERTIFICATES
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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
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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 :
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II. Fair Employment Practices (Continued)
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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 - %
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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
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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-
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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 }_-:
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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_,
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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
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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—,
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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'
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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
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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
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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
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I. Sales Tax (Continued) 6 D
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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-:
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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
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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'.
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K. Contracts and Bonds F
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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
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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 =
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Any bid in excess of $100,000 that does not include this completed form shall be considered w O
non- responsive.
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Affirmative Action for Employment cn a
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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
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1. Affidavit and Certificate of Compliance with King County Code Chapter 12.16 0 i--;
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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-:
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the stated amount is to be added or deducted. If neither is indicated by an X, the amount will
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be assumed to be DEDUCTIVE. If inclusion of the alternate would result in neither an 6 =
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addition to nor a reduction from the Base Bid, write or type 0 (zero) for the amount. If .tl O
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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
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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 _ ~
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Date: V 0
Bid of (hereinafter called w =
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"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
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To: King County Bid Board w w
King County, Washington p
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Having carefully examined the Specifications, Drawings, and Contract Documents for the Project entitled: :o i—
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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
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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
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A. Section 00100 Instructions to Bidders
B. Section 00300 Form of Bid 6 m.`
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1.02 Project Name u) 0 -
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1.03 Project Location
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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 _
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1.04 Description of Work z O
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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
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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
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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
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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
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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
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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
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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=.).
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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-
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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-
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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
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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'
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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
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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
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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
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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
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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
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Chapter 39.08 of the Revised Code of Washington which is hereby incorporated in z
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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.
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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
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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
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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
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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.
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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
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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
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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
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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)
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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!
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Division 1.1 - Equipment W
W
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Section Description Number of Pages u. o
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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;
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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
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• 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
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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)
•
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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
•
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4 \ X
•
•
•
DEPARTMENT OF NATURAL RESOURCES.
PAM BISSONNETTE
DIRECTOR — DESIGNEE
•
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• •
, .
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
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BEGINNING OF PROJECT :
#1 .
STA. 0+00
• .• / ('ORfENSR E'
APPROXIMATE EDGE
OF EXISTING ASPHALT
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45.64 _
N 24'58'4_3"E
-42.24
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1 - 1 Nt-
RELOCATE CONC. 14,4 .11
BARRIERS la
1N1
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NEW PERMANENT
RIGHT OF ENTRY
8
SEE NOTE 8
STA. 2+19
• EXISTINO PERMANE
OF NTRY • .
119• . .
'4
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CONDENSE
CONC. PAD
ORMER
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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
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AREA INLET
TOP 22,8 ' • .
SS V
EEE INNOTE20.56 •
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„......,..30„..4a41\n'ILN 2•04,LI 4 SEE SHEET 4
ES 70 CB
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SEE NOTE 8
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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,_.......
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CALL 2 DAY-
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35
31
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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
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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 •
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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'
•
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ACCESS DOOR
EL. 24.10.
GALV. STEEL
A----- 11-7—\\116,, ri 1461,'°°41=44%
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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
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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
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•
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• UNDERMAIN
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, -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
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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
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XPIIEA'.113LLL 96
IXQIGIKYEETLI:1111
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BUILDING •
•
m
i.
,.. •
35
... •
SHOULDER BALLAST.
. ..
• .
'. I
,
323
i
...air
MAX. DRY ENSITE •
(ASTMD 15.7 MODIFIED PROCTOR)
.
GRADE
14:
3c
N
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•
., •
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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
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.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
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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#