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Home My WebLink About14-164 - Northwest Hydraulics Consultants - Tukwila 205 Levee Certificationw4 City of Tukwila sy 6200 Southcenter Boulevard, Tukwila WA 98188 ,_ 20 s Agreement Number: •14-164(b) Council Approval N/A CONTRACT FOR SERVICES Amendment #2 Between the City of Tukwila and Northwest Hydraulic Consultants, Inc. That portion of Contract No. 14-164 between the City of Tukwila and Northwest Hydraulic Consultants Inc. is hereby amended as follows: Section 3: Duration of Agreement; Time for Performance shall be modified as follows: This agreement shall be in full force and effect for a period commencing upon execution and ending December 31, 2019, unless sooner terminated under the provisions hereinafter specified. Work under this Agreement shall commence upon written notice by the City to the Consultant to proceed. The Consultant shall perform all services and provide all work product required pursuant to this Agreement no later than December 31, 2019 unless an extension of such time is granted in writing by the City. All other provisions of the contract shall remain in full force and effect. Dated this 1-3 T ' day of 1.)e-er— , 20 CITY OF TUKWILA Allan Ekberg, Mayor ATTEST/AUTHENTI,CATED 7:Jr. Ch 'sty O'F Caherty,MMC, City rk Office of the City Attorney CONTRACTOR Printed Name: 1-ZYDO 13er4r4ET APPROVED AS TO FORM r CA Revised December 2016 57Le d C,g76(/vA,s Page 1 of 1 City of Tukwila Agreement Number: l q /6 (l / \ 6200 Southcenter Boulevard, Tukwila WA 98188 7 L J CONTRACT FOR SERVICES , Amendment # 1 Between the City of Tukwila and Northwest Hydraulic Consultants, Inc. That portion of Contract No. 14 -164 between the City of Tukwila and Northwest Hydraulic, Inc. is amended as follows: Section 2: Scope of Services The consultant agrees to perform the additional services, identified on Exhibit "Al" attached hereto, including the provision of all labor, materials, equipment, and supplies. Section 3: Duration of Agreement; Time for Performance This Agreement as amended shall be in full force until December 30, 2018, unless sooner terminated under the provisions of the agreement. Work under this Agreement shall commence upon written notice by the City to the Consultant to proceed. The Consultant shall perform all services and provide all work product required pursuant to this agreement no later than December 30, 2017 unless an extension of such time is granted in writing by the City. Section 4: Payment A. Payment for the work provided by the Consultant shall be made as provided on Exhibit "B1" attached hereto, provided that the total amount of payment to the Consultant shall not exceed $642,399.00 without express modification of the Agreement signed by the City. All other provisions of the contract shall remain in full force and effect. Dated this �� day of yV c Ugi CITY OFT ... ILA ,20 Allan Ekberg, Mayor ATTEST /AUTHENTICATED Todd Bennett, Branch Manager APPROVED AS TO FORM C risty 0' Iaherty, MMC, City CI ° k City Attorney /61d Page 1 of 1 nhc EXHIBIT Al 16300 Christensen Rd., Ste. 350 !Seattle, WA 98188 1 206.241.6000 1 www.nhcweb.com northwest hydraulic consultants TUKWILA 205 LEVEE CERTIFICATION PHASE 2 - ALTERNATIVES ANALYSES FOR LARGE SCALE IMPROVEMENTS SCOPE OF WORK Prepared by Northwest Hydraulic Consultants Inc. for the City of Tukwila Department of Public Works October 19, 2016 OVERVIEW The City of T ukwila (City) Department of Public Works has selected Northwest Hydraulic Consultants Inc. (NHC), with their subconsultants AMEC Environment and Infrastructure, Inc. (AMEC) and KPG, to provide professional engineering consulting services to evaluate and certify the Tukwila 205 Levee in accordance with Federal Emergency Management Agency (FEMA) requirements (44 CFR Section 65.10). The 4.6- mile -long levee is located on the left bank of the Green River between 1 -405 and South 196th Street and includes the cutoff levee to Southcenter Parkway. Engineering services generally consist of researching records, conducting inspections, performing structural, geotechnical, seismic, and hydraulic analyses, preparing detailed reports of the current levee system, providing an analysis and report of needed improvements, and working with the City to provide engineering plans, specifications, and cost estimates for the improvements. Work may include engineering services during construction for any required improvements, such as inspection and change management support under the direction of the City's project manager. Once the levee is deemed certifiable, work will include providing the necessary reports and documentation to certify that the levee provides protection from the base (1 percent annual chance) flood in accordance with FEMA guidelines. This is a multi -phase project. "Phase 1— Engineering Analyses and Improvement Identification" collected data, performed analyses required under 44 CFR 65.10, and identified deficiencies. This work indicated that steep bank slopes throughout the reach significantly limit the ability to certify the levee as -is. As such, "Phase 2 - Alternatives Analyses for large Scale Improvements for Large Scale Improvements" will identify if there are alternative options to evaluate the existing case, and then, if still deemed that the levee can't be certified as -is, evaluate options that will certify the levee by selecting a preferred alternative and developing conceptual level construction plans. These complex fixes will move the project into permitting, design, and construction in "Phase 3 - Large Scale Improvements ". "Phase 4 - Certification Submittal" will provide the documentation necessary to certify the Tukwila Levee and include an Operations and Maintenance Manual, of which the basis will be the existing U.S. Army Corps' (Corps) approved manual, but also will adopt other recent policies and procedures, if appropriate, such as those from King County's ongoing System -Wide Improvement Framework (SWIF) assessment for the Green River. After completion of Phase 2, the specific task work to be completed in Phases 3 through 4 will be refined and a cost estimate to complete this work will be prepared. water resource specialists PHASE 1- ENGINEERING ANALYSES AND IMPROVEMENT IDENTIFICATION The Scope of Work (SOW) for Phase 1 defined Tasks 1 through 8 to complete the engineering analyses needed to certify the Tukwila 205 Levee in accordance with FEMA requirements (44 CFR Section 65.10), and identify any physical improvements necessary to certify the levee. Specific assignments and deliverables have been listed for each task, including who is responsible for certifying compliance with each section of 65.10. PHASE 2 - ALTERNATIVES ANALYSES FOR LARGE SCALE IMPROVEMENTS Phase 2 will conduct the alternatives analyses for the large, complex improvements necessary to certify the levee. Any small -scale fixes determined in Phase 1 —for instance where the solution is obvious and no permitting is required, such as raising the levee slightly to gain the necessary freeboard — will be incorporated into the large -scale improvements. Phase 3 will address design, permitting, and construction of large, complex improvements. The Phase 3 SOW will be refined after the completion of Phase 2. A Phase 3 cost estimate will then be prepared and submitted to the City. TASK 9. SITE SPECIFIC ENGINEERING ANALYSES This task will collect additional data, evaluate methods, and conduct additional (or refine existing) analyses to determine if the levees can be certified as -is. Phase 1 conducted a reach -wide assessment of the levees using generalized information. More site specific details and review of levee sections in finer detail, may indicate that portions can be certified as -is and not need a constructed fix. The project team will discretize the project reach based on common characteristics and determine how Phase 1. engineering analyses could be refined for these sections. The team will then collect additional data and refine the engineering analyses if it is deemed that they could provide the technical backing to certify discrete sections of the levee. The City will be engaged, and meetings will be held as necessary at regular intervals during the task work. NHC will lead this effort, with both NHC and AMEC evaluating and refining the analyses as needed. It is anticipated that AMEC will lead the effort to collect more detailed site characterization through cone penetration test (CPT) probes. The CPT probes are a less costly exploration method than boring, but still provide a continuous log of the soil profile when correlated with Phase 1 information. KPG will conduct detailed channel bank information at up to eight cross - sections and, if requested, will collect additional survey data in key areas up to the allotted .level of effort budgeted. ASSIGNMENTS NHC: Evaluate and refine hydraulic engineering analyses. Assemble summary document. AMEC: Evaluate and refine hydraulic geotechnical analyses. KPG: Topographic survey. City: Provide assistance as needed. DELIVERABLES • Documentation of sections of the levee that can be certified as -is without a constructed fix. TASK 10. ALTERNATIVES ANALYSIS — LARGE SCALE PROJECTS Phase 1 identified that projects of a larger and more complex scale are likely necessary to certify the levee. For larger projects, an initial alternatives assessment will be conducted by the consultant team. Page 2 of 6 Tukwila 205 Levee Certification Scope of Work — 10/19/16 City of Tukwila Department of Public Works Alternatives will be assessed for each project using objectives and performance metrics developed in conjunction with the City. A recommended alternative will be selected and presented to the City for approval prior to beginning Phase 3 work. NHC will lead this task. NHC and AMEC will first determine potential alternative construction fixes that will lead to the levee being certified and then determine approximate construction costs for each alternative with KPG assistance. For each levee section characterized, NHC and AMEC will determine the evaluation criteria with the City, evaluate the alternatives accordingly, and provide a recommended alternative to the City during an in- person meeting. Once a preferred alternative is selected, the project team will develop conceptual level designs for each levee section. ASSIGNMENTS NHC: Lead alternatives analysis and conceptual design. Develop alternatives. Provide hydraulic support. Document work. AMEC: Assist with developing alternatives. Provide geotechnical support. KPG: Assist with developing alternatives and preliminary cost estimates. City: Provide input on alternatives assessment metrics and preferred alternative. DELIVERABLES • Alternatives assessment documentation for discrete levee sections including methodology, selection criteria, and preferred alternative with a conceptual design. COST ESTIMATE The total estimated cost to complete Phase 2 (Tasks 9 and 10) is $316,788 as detailed in Exhibit B, "Phase 2 Cost Estimate 10/14/2016 ". PHASE 3 - LARGE SCALE IMPROVEMENTS Phase 3 will provide civil design and construction support of the preferred design determined in Phase 2 for large- scale, complex physical deficiencies. Meetings will be held as needed. The SOW for Phase 3 will be refined at the completion of Phase 1, and a cost estimate prepared. TASK 11. CIVIL DESIGN AND CONSTRUCTION SUPPORT— LARGE SCALE KPG will take the lead on plans, specifications, and engineering to develop and resolve deficiencies. NHC and AMEC will provide specifications and direction on key hydraulic and geotechnical design features. KPG will provide construction management services for the projects. ASSIGNMENTS NHC: Provide hydraulic technical input based on work completed in prior tasks. AMEC: Provide geotechnical input based'on work completed in prior tasks. KPG: Lead efforts for construction of physical deficiency corrections including creating PSE and providing construction support. City: Provide assistance as needed. DELIVERABLES • Full PSE packages suitable for bid letting. Construction management documentation as required. Page 3 of 6 Tukwila 205 Levee Certification Scope of Work — 10/19/16 City of Tukwila Department of Public Works TASK 12. ENVIRONMENTAL /PERMITTING Capital improvements required to address deficiencies will likely require obtaining permits. If work is required on the riverward side of the levee, federal permits triggering ESA consultations may be mandatory. AMEC will provide permitting support for any required capital projects if requested by the City. ASSIGNMENTS NHC: Hydraulics support for permitting. AMEC: Provide permitting support as needed for the project. KPG: Civil design support for permitting. City: No assignments under this task. DELIVERABLES • Permit submittal packages as required to meet environmental /permitting needs. PHASE 4 - CERTIFICATION SUBMITTAL Once all deficiencies have been identified and corrected, the Tukwila Levee Certification report will be prepared for submittal. The SOW for Phase 4 will be refined at the completion of Phase 1, and a cost estimate prepared. TASK 13. OPERATIONS PLANS AND CRITERIA DOCUMENTATION An Operations and Maintenance (O &M) manual to meet FEMA requirements for the levee (CFR 65.10.c) will be created, primarily by combining existing manuals. The basis of the manual will be the existing Corps' approved manual, but will also adopt other recent policies and procedures, if appropriate, such as those from the ongoing King County SWIF process, (on which NHC is part of the consultant project team). Additions may be necessary where other infrastructure — particularly bridge embankments - serve as part of the levee system, but are not considered by the Corps as part of their project, and hence are not addressed in the existing manual. The O&M manual must also address the stormwater system that provides interior drainage for the City; therefore, all the City's pump stations will need to be addressed. FEMA requires clear ownership of the levee system be demonstrated. As the Washington State Department of Transportation (WSDOT) owned 1 -405 bridge embankment is high ground and the downstream tie -in, an inter - jurisdictional agreement will need to be made between the City and WSDOT. Kent and WSDOT have recently determined a method to address the issue within the City, and we expect the same process to be followed. This task is required to be led by the City, but the consultant team will provide the technical materials needed. ASSIGNMENTS NHC: Prepare documentation (including references to existing manuals) to meet CFR 65.10.c requirements. AMEC: Assist with document preparation. KPG: No assignments under this task. City: Assist with providing existing O &M manuals. Lead inter- jurisdictional agreement at downstream tie -in to high ground. Page 4 of 6 Tukwila 205 Levee Certification Scope of Work - 10/19/16 City of Tukwila Department of Public Works DELIVERABLES • Draft and final versions of O &M report. • Technical materials for inter - jurisdictional agreement at downstream tie -in. TASK 14. REFINE ENGINEERING ANALYSES Engineering analyses conducted in Phase 1 may need to be refined to reflect any constructed levee improvements, and demonstrate that the levee meets certification requirements. The project team will revise the Phase 1 analyses, as needed, and update the documentation for the levee certification. ASSIGNMENTS NHC, AMEC, and KPG: Revise Phase 1 engineering analyses, as needed. DELIVERABLES • Final documentation of engineering analyses. TASK 15. PROJECT DOCUMENTATION SUBMITTAL AND REVIEW Once all technical analyses are complete and any deficiencies addressed, a certification report package will be prepared. NHC will take the lead to prepare this document and combine reports, as -built plans, and other required files. The certification document will be combined with others from the City (that are related to the O &M manual) into a final report and submitted to FEMA. The project team will address review comments provided by FEMA. Whether the project report is submitted as a Conditional Letter of Map Revision (CLOMR) through FEMA's consultant, STARR, or directly through local FEMA Region X for review, will be determined during the project. NHC will engage FEMA Region X early in the project to determine which of these paths is most likely. ASSIGNMENTS NHC: Prepare submittal package to meet CFR 65.10.c requirements. AMEC: Assist with document preparation. KPG: Assist with document preparation. City: Assist with document preparation, including providing required City signatures and formal authorizations. DELIVERABLES • Draft project documentation. • Final project documentation. Page 5 of 6 Tukwila 205 Levee Certification Scope of Work — 10/19/16 City of Tukwila Department of Public Works SCHEDULE A tentative schedule for Phase 2 is shown below, assuming notice to proceed occurs near November 1, 2016. Timing for work beyond Phase 2 will depend heavily on the number and complexity of any fixes . needed to obtain levee certification. Based on Phase 1 work, these could be significant. The schedule for completing final design, and construction of the larger, more complex projects in Phase 3, will be better known once Phase 2 is complete. PHASE 2 Task 9. Site Specific Engineering Analyses Task 10. Alternatives Analysis - Large Scale 2016 2017 J A,MiJ...I_j A S O N D J F'IM A M JIJIA S O N D IIIuIIIIuulIIHuIIIIIuuI ii Page 6 of 6 Tukwila 205 Levee Certification Scope of Work — 10/19/16 City of Tukwila Department of Public Works EXHIBIT B1 PHASE 2 COST ESTIMATE 10/19/2016 Cost Estimate Northwest Hydraulic Consultants Inc. 16300 Christensen Road, Suite 350 Seattle, WA 98188 Tel. (206) 241 -6000 Fax (206) 439-2420 Prepared for Ryan Larson, City of Tukwila Project: Tukwila Levee Certifcation Project No.: P2000098 Prepared By: Todd Bennett, NHC Date: 10/19/16 Labor Detail Direct Expenses Subs Total Task Cost Task Description Principal Sr. Engr. Engineer Jr. Engineer GIS /CAD Analyst Finance Manager Document Prod. Labor Total 9 Site Specific Engineereing Analyses 10 Alternatives Analysis - Large Scale Projects 40 40 60 80 110 190 40 70 100 2 2 4 4 $ 42564.77 $ 63,757.44 $ - $ - $ 109,644.95 $ 100,821.02 $ 152,210 $ 164,578 Total Hours 80.0 140.0 300.0 40.0 170.0 4.0 8.0 $ 106,32221 $ 0.00 $ 210,465.97 $ 316,788 Cost Based Rates (2017, 199.04 %0H, 12% fee) $ 237.62 $ 191.17 $ 136.31 $ 97.16 $ 85.94 $ 129.44 $ 80.28 Total Direct Expenses Description Task Units • Rate Cost Mileage Color Photo Copies (8.5" x 11") Color Photo Copies (11 "x17 ") 0 0 0 $ 0.54 $ 1.00 $ 2.00 $ 0.00 $ , 0.00 $ 0.00 Total Direct Expenses: $ 0.00 Subconsultants Firm Task Sub Expense Markup Cost AmecFW AmecFW KPG • KPG 9 10 9 10 5 $ 84,489.00 $ 63,778.00 $ 15,188.23 $ 27,877.48 1054 10% 10% 30% $ 92,937.90 $ 70,155.80 $ 16,707.05 $ 30,665.22 • -Total Subconsultants: $ 210,465.97 Cost Summary -- Description Cost Total Labor Total Direct Expenses Total Subconsultants $ 106,322 $ 0 $ 210,466 Total Protect Cost: $ 316,788 City of Tukwila 6200 Southcenter Boulevard, Tukwila WA 98188 — Contract Number: 1 4164 Council Approval 10/20/14 CONSULTANT AGREEMENT FOR PROFESSIONAL ENGINEERING SERVICES THIS AGREEMENT is entered into between the City of Tukwila, Washington, hereinafter referred to as "the City", and Northwest Hydraulic Consultants Inc. hereinafter referred to as "the Consultant", in consideration of the mutual benefits, terms, and conditions hereinafter specified. 1. Project Designation. The Consultant is retained by the City to perform professional engineering services in connection with the project titled "Tukwila 205 Levee Certification". 2. Scope of Services. The Consultant agrees to perform the services, identified on Exhibit "A" attached hereto, including the provision of all labor, materials, equipment and supplies. 3. Duration of Agreement; Time for Performance. This Agreement shall be in full force and effect for a period commencing upon execution and ending December 30, 2016, unless sooner terminated under the provisions hereinafter specified. Work under this Agreement shall commence upon written notice by the City to the Consultant to proceed. The Consultant shall perform all services and provide all work product required pursuant to this Agreement no later than December 30, 2015 unless an extension of such time is granted in writing by the City. 4. Payment. The Consultant shall be paid by the City for completed work and for services rendered under this Agreement as follows: A. Payment for the work provided by the Consultant shall be made as provided on Exhibit "B" attached hereto, provided that the total amount of payment to the Consultant shall not exceed $447,711 without express written modification of the Agreement signed by the City. B. The Consultant may submit vouchers to the City once per month during the progress of the work for partial payment for that portion of the project completed to date. Such vouchers will be checked by the City and, upon approval thereof, payment shall be made to the Consultant in the amount approved. C. Final payment of any balance due the Consultant of the total contract price earned will be made promptly upon its ascertainment and verification by the City after the completion of the work under this Agreement and its acceptance by the City. D. Payment as provided in this section shall be full compensation for work performed, services rendered, and for all materials, supplies, equipment and incidentals necessary to complete the work. E. The Consultant's records and accounts pertaining to this Agreement are to be kept available for inspection by representatives of the City and the state of Washington for a period of three (3) years after final payments. Copies shall be made available upon request. 74' (%i-le(6://v/44- S 5. Ownership and Use of Documents. All documents, drawings, specifications and other materials produced by the Consultant in connection with the services rendered under this Agreement shall be the property of the City whether the project for which they are made is executed or not. The Consultant shall be permitted to retain copies, including reproducible copies, of drawings and specifications for information, reference and use in connection with the Consultant's endeavors. The Consultant shall not be responsible for any use of the said documents, drawings, specifications or other materials by the City on any project other than the project specified in this Agreement. 6. Compliance with Laws. The Consultant shall, in performing the services contemplated by this Agreement, faithfully observe and comply with all federal, state, and local laws, ordinances and regulations, applicable to the services rendered under this Agreement. 7. Indemnification. The Consultant shall indemnify and hold the City, its officers, officials, employees and volunteers harmless from any and all claims, injuries, damages, losses or suits including attorney fees, to the extent arising out of or resulting from the acts, errors or omissions of the Consultant in performance of this Agreement, except for injuries and damages caused by the sole negligence of the City. Should a court of competent jurisdiction determine that this Agreement is subject to RCW 4.24.115, then, in the event of liability for damages arising out of bodily injury to persons or damages to property caused by or resulting from the concurrent negligence of the Consultant and the City, its officers, officials, employees, and volunteers, the Consultant's liability hereunder shall be only to the extent of the Consultant's negligence. It is further specifically and expressly understood that the indemnification provided herein constitutes the Consultant's waiver of immunity under Industrial Insurance, Title 51 RCW, solely for the purposes of this indemnification. This waiver has been mutually negotiated by the parties. The provisions of this section shall survive the expiration or termination of this Agreement. 8. Insurance. The Consultant shall procure and maintain for the duration of the Agreement, insurance against claims for injuries to persons or damage to property which may arise from or in connection with the performance of the work hereunder by the Consultant, its agents, representatives, or employees. Consultant's maintenance of insurance as required by the agreement shall not be construed to limit the liability of the Consultant to the coverage provided by such insurance, or otherwise limit the City's recourse to any remedy available at law or in equity. A. Minimum Amounts and Scope of Insurance. Consultant shall obtain insurance of the types and with the limits described below: 1. Automobile Liability insurance with a minimum combined single limit for bodily injury and property damage of $1,000,000 per accident. Automobile Liability insurance shall cover all owned, non-owned, hired and leased vehicles. Coverage shall be written on Insurance Services Office (ISO) form CA 00 01 or a substitute form providing equivalent liability coverage. If necessary, the policy shall be endorsed to provide contractual liability coverage. CA revised : 1-2013 Page 2 2. Commercial General Liability insurance with limits no less than $1,000,000 each occurrence, $2,000,000 general aggregate. Commercial General Liability insurance shall be written on ISO occurrence form CG 00 01 and shall cover liability arising from premises, operations, independent contractors and personal injury and advertising injury. The City shall be named as an insured under the Consultant's Commercial General Liability insurance policy with respect to the work performed for the City. 3 Workers' Compensation coverage as required by the Industrial Insurance laws of the State of Washington. 4. Professional Liability with limits no less than $1,000,000 per claim and $1,000,000 policy aggregate limit. Professional Liability insurance shall be appropriate to the Consultant's profession. B. Other Insurance Provision. The Consultant's Automobile Liability and Commercial General Liability insurance policies are to contain, or be endorsed to contain that they shall be primary insurance with respect to the City. Any Insurance, self-insurance, or insurance pool coverage maintained by the City shall be excess of the Consultant's insurance and shall not be contributed or combined with it. C. Acceptability of Insurers. Insurance is to be placed with insurers with a current A.M. Best rating of not less than A:VII. D. Verification of Coverage. Consultant shall furnish the City with original certificates and a copy of the amendatory endorsements, including but not necessarily limited to the additional insured endorsement, evidencing the insurance requirements of the Consultant before commencement of the work. Certificates of coverage and endorsements as required by this section shall be delivered to the City within fifteen (15) days of execution of this Agreement. E. Notice of Cancellation. The Consultant shall provide the City with written notice of any policy cancellation, within two business days of their receipt of such notice. F. Failure to Maintain Insurance. Failure on the part of the Consultant to maintain the insurance as required shall constitute a material breach of contract, upon which the City may, after giving five business days notice to the Consultant to correct the breach, immediately terminate the contract or, at its discretion, procure or renew such insurance and pay any and all premiums in connection therewith, with any sums so expended to be repaid to the City on demand, or at the sole discretion of the City, offset against funds due the Consultant from the City. 9. Independent Contractor. The Consultant and the City agree that the Consultant is an independent contractor with respect to the services provided pursuant to this Agreement. Nothing in this Agreement shall be considered to create the relationship of employer and employee between the parties hereto. Neither the Consultant nor any employee of the Consultant shall be entitled to any benefits accorded City employees by virtue of the services provided under this Agreement. The City shall not be responsible for withholding or otherwise deducting federal income tax or social security or for contributing to the state industrial insurance program, otherwise assuming the duties of an employer with respect to the Consultant, or any employee of the Consultant. CA revised : 1-2013 Page 3 10. Covenant Against Contingent Fees. The Consultant warrants that he has not employed or retained any company or person, other than a bonafide employee working solely for the Consultant, to solicit or secure this contract, and that he has not paid or agreed to pay any company or person, other than a bonafide employee working solely for the Consultant, any fee, commission, percentage, brokerage fee, gifts, or any other consideration contingent upon or resulting from the award or making of this contract. For breach or violation of this warrant, the City shall have the right to annul this contract without liability, or in its discretion to deduct from the contract price or consideration, or otherwise recover, the full amount of such fee, commission, percentage, brokerage fee, gift, or contingent fee. 11. Discrimination Prohibited. The Consultant, with regard to the work performed by it under this Agreement, will not discriminate on the grounds of race, religion, creed, color, national origin, age, veteran status, sex, sexual orientation, gender identity, marital status, political affiliation or the presence of any disability in the selection and retention of employees or procurement of materials or supplies. 12. Assignment. The Consultant shall not sublet or assign any of the services covered by this Agreement without the express written consent of the City. 13. Non-Waiver. Waiver by the City of any provision of this Agreement or any time limitation provided for in this Agreement shall not constitute a waiver of any other provision. 14. Termination. A. The City reserves the right to terminate this Agreement at any time by giving ten (10) days written notice to the Consultant. B. In the event of the death of a member, partner or officer of the Consultant, or any of its supervisory personnel assigned to the project, the surviving members of the Consultant hereby agree to complete the work under the terms of this Agreement, if requested to do so by the City. This section shall not be a bar to renegotiations of this Agreement between surviving members of the Consultant and the City, if the City so chooses. 15. Applicable Law; Venue; Attorney's Fees. This Agreement shall be subject to, and the Consultant shall at all times comply with, all applicable federal, state and local laws, regulations, and rules, including the provisions of the City of Tukwila Municipal Code and ordinances of the City of Tukwila. In the event any suit, arbitration, or other proceeding is instituted to enforce any term of this Agreement, the parties specifically understand and agree that venue shall be properly laid in King County, Washington. The prevailing party in any such action shall be entitled to its attorney's fees and costs of suit. Venue for any action arising from or related to this Agreement shall be exclusively in King County Superior Court. 16. Severability and Survival. If any term, condition or provision of this Agreement is declared void or unenforceable or limited in its application or effect, such event shall not affect any other provisions hereof and all other provisions shall remain fully enforceable. The provisions of this Agreement, which by their sense and context are reasonably intended to survive the completion, expiration or cancellation of this Agreement, shall survive termination of this Agreement. CA revised : 1-2013 Page 4 17. Notices. Notices to the City of Tukwila shall be sent to the foliowing address: City Clerk City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 Notices to Consultant shall be sent to the following address: Northwest Hydraulic Consultants Inc. Attention: Todd Bennett 16300 Christensen Road, Suite 350 Tukwila, WA 98188 18. Entire Agreement; Modification. This Agreement, together with attachments or addenda, represents the entire and integrated Agreement between the City and the Consultant and supersedes all prior negotiations, representations, or agreements written or oral. No amendment or modification of this Agreement shall be of any force or effect unless it is in writing and signed by the parties. DATED this c:;7 day of dekbe i CITY OF TUKWILA Attest/Authenticated: City Clerk, Chris CA revised : 1-2013 CONSULTANT ,204 Printed Name: Todd H. Bennett Title: Principal/Branch Manager Approved as to Form: Office of the City Atto ey Page 5 EXHIBIT A 16300 Christensen Rd., Ste. 350 1 Seattle, WA 98188 1 206.241.6000 1 www.nheweb.corn �� &nx�� " ��v�`��u«o�^*��mic cortstt tal"rts TUKWILA 205 LEVEE CERTIFICATION SCOPE OF WORK Prepared by Northwes Hydraulic Consultants Inc. for the City ofTukwila Department of Public Works September 30, 2014 OVERVIEW The City ofTukwila (City) Department of Public Works has selected Northwest Hydraulic Consultants Inc. (NHC), with their subconsultants, AMEC Environment and Infrastructure, Inc. (AMEC) and KPG, to provide professional engineering consulting services to evaluate and certify the Tukwila 205 Levee in accordance with FEMA requirements (44 CFR Section 65.10). The 4.6 mile long Ievee is Iocated on the Ieft bank of the Green River between 1-405 and South 196th Street including the cutoff Ievee to Southcenter Parkway. The engineering services generally consist of researching records, conducting inspections, performing structural, geotechnical, seismic, and hydraulic analyses, preparing detailed reports of the current levee system, providing an analysis and report of needed improvements, and working with the City to provide engineering plans, specifications, and cost estimates for the improvements. Work may include engineering services during construction for any required improvements, such as construction inspection and change management support under the direction of the City's project manager. Once the Ievee is deemed certifiable, work will include providing the necessary reports and documentation certifying that the levee provides protection from the base (1% annual chance) flood in accordance with FEMA guidelines. This is a multi-phase project; "Phase 1 — Engineering Analyses and Improvement Identification" will collect data, perform analyses required under 44 CFR 65.10, and identify deficiencies. |n "Phase Z' A|ternadvesAna|ysisand5maUSca|e|mprovements",anynecessaryimprovementsvviUbegintobe addressed. Documentation and administrative deficiency issues regarding the levee certification will be dealt with as they are identified. Physical improvements identified during the various technical analyses will require a different approach. Physical improvements with simple fixes will go immediately to a design stage while more complex fixes will go through alternatives analysis. These complex fixes will then move into permitting, design, and construction in "Phase 3 - Large Scale Improvements". "Phase 4 Certification Submittal" will provide the documentation necessary to certify the Tukwila Levee. The basis for the documentation will be the existing Corps approved manual but will also adopt other recent policies and procedures, if appropriate, such as those from King County's ongoing System-Wide Improvement Framework (SWIF) assessment for the Green River. For the first phase, the tasks are well defined and a cost estimate is provided in this Scope of Work. Descriptions for later phases are also included to put the entire levee certification project in context. After completion of Phase 1, and once any improvement needs are identified, the specific task work to be completed in Phases 2 through 4 wiII be refined and a cost estimate to complete this work prepared. water resource PHASE 1 - ENGINEERING ANALYSES AND IMPROVEMENT IDENTIFICATION. The following Scope of Work (SOW) for Phase 1 defines the tasks to complete the engineering analyses to certify the Tukwila 205 Levee in accordance with FEMA requirements (44 CFR Section 65.10) and identify any physical improvements necessary to certify the Ievee. Specific assignments and deliverabies have been listed for each task, including who is responsible for certifying compliance with each section of 65.10. TASK 1. DATA REVIEW NHC has much of the key information that will be reviewed at the start of the project. This includes the 2010 and 2013 levee inspection reports, geotechnical reports, as-built drawings, repair plans, and the City stormwater GIS database. Overall, the project benefits from having excellent documentation. NHC created and has in-hand aPI the hydraulic models needed. Additional information will be sought from the City, King County, and the Corps of Engineers. Team members will attend a data discovery meeting with the City to discuss known data and how this information will be obtained if the project team does not already have it in-hand. The consultant team will review existing data to refine system understanding and look for opportunities to leverage previously collected data. Existing documents to be reviewed include: • Existing bathymetric and topographic data • Existing Ievee surveys • 2OlO and 2O13 levee inspection reports • Levee as-built drawings and any repair plans • Historical information (as-builts and design alternations) on nearby site development • Previous flood fighting information • Discussions with persons having first-hand experience observing any physical levee performance deficiencies • Utility crossing records • Geologic reports, boring Iogs, groundwater data, and lab testing data • City stormwater GIS database • Levee Operations & Maintenance manuals. This task will also include documenting with the City that there are no structural closure devices within the levee and therefore, CFR 65.10.b.2 "Closures" does not need to be addressed as part of the levee certification. ASSIGNMENTS NHC, AMEC, KPG: Collect and review data, and provide Iist of additional data needs. Attend data discovery meeting. City: Assist in providing additional data needs and interagency coordination. NHC and City: Certify that there are no structural closures in the levee system. DELIVERABLES • List of documents and data reviewed to be included in the reference section of project documentation. • List of additional data needs, as needed. • Text documenting that there are no structural closures within the Ievee system. Page 2 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works TASK 2. SITE RECONNAISSANCE AND FIELD DATA COLLECTION SITE RECONNAISSANCE Site reconnaissance wiII include both land and boat based work. Boat work will be done in late summer low flow conditions. Upper bank reconnaissance will occur in late 2014 when leaf-off conditions are reached and visibility in dense brush is better. Ideally this would also coincide with a Ievee mowing prior to the reconnaissance work. The Ievee inspection will include observing and recording: • Characterization of bank conditions including material and vegetation cover • Evidence of bank erosion and seepage (e.g., sand boils, soil piping, or gullies) • Evidence of settlement or instability (e.g., slides, slumps, and tension cracks) • Evidence of burrowing rodent activity • Ruts or ponded water along top of Ievee or other access roads • Conditions at active or abandoned utility crossings • Conditions where existing embankment is known to be substandard based on findings from the Data Review Task • Field checks of the operational condition for stormwater outfalls identified in the City's GIS database of existing culverts ("Ievee penetrations"). Mowing required for inspection needs will be coordinated with the City. The City will indicate whether mowing shall be accomplished with City crews or not. An allowance is included in the cost estimate for contracted mowing. The City will be responsible for any trail closures, permits, and notifications required for mowing activities. After the field reconnaissance, documentation will be prepared summarizing the findings. TOPOGRAPHIC SURVEY A partial topographic survey will occur once existing as-built and topographic mapping are reviewed. KPG will survey a new levee crest profile following the riverside top of the levee as well as up to twenty cross sections, from riverward toe to Iandward toe. Other items for KPG to survey include horizontal locations of piers and abutments at the upstream bridge face, vertical location of low bridge chord, geotechnical boring locations, and marking stations at 100 to 200 foot spacing along the profile. Utility crossing locations and culvert outfalls will be shown based on available GIS data rather than survey for Phase 1. It is anticipated that NHC or AMEC will identify additional items that will require survey locates to complete Phase 1. As the scope of these items is uncertain, an allowance of forty hours of survey crew time and associated processing time has been allocated for these other items. NHC will supplement the bathymetric survey it has already conducted in the reach by collecting additional data focused along the left bank of the river using its jet boat and integrated GPS-depth sounder. Survey needs for specific design needs (Phases 2 and 3) are not included in this task. This task assumes that right of entry along the levee will be obtained by the City and that there will be no traffic control needs. GEOTECHNICAL EXPLORATIONS An estimated additional eighteen borings are needed to provide data for completing analyses required under 44 CFR 65.10. The boring locations will be selected based on the results of site reconnaissance. AMEC will prepare an exploration plan describing proposed boring locations, to coordinate any trail closures or vegetation clearing with the City. AMEC will direct the drilling and related lab testing. Before drilling, AMEC will contact the One-Call Utility Notification Center to mark any underground utilities at each exploration location, but additional assistance from the City might be needed to identify all known underground utilities, based on available City maps. AMEC will also retain the services of a private utility locating company for one day to check the proposed drilling locations for utilities not Page 3 of 11 Tukwila 205 Levee Certification Scope of Work 9/30/14 Final City ofTukwila Department of Public Works marked by the One-CaII service. KPG wiH survey the Iocations of the borings and provide Northing, Easting and elevation for each on the project datum. ASSIGNMENTS NHC: Collect bathymetric data at Ievee toe for scour assessments. Conduct site reconnaissance. Document any observed scour conditions. AMEC: Conduct site reconnaissance jointly with NHC. Document existing levee conditions including levee inspection observations noted in the bulleted list within the task description. Determine Iocations for additional geotechnical borings and coordinate with City. Direct drilling and lab testing. KPG: Topographic survey. City: Coordination, as needed, for trail closures and any permits and notifications required for mowing activities prior to field reconnaissance. Provide available mapping of subsurface structures and/or utility Iocations. DELIVERABLES • Notes from field reconnaissance. • Survey data. • Geotechnical exploration plan (results of drilling and testing provided under Task 5). TASK 3. FREEBOARD ANALYSIS CFR 65.10.b.1 requires at least three feet of freeboard above the 100-year flood for levee accreditation. NHC will use the existing HEC-RAS model developed previously by NHC for the FEMA study to evaluate river hydraulics including freeboard. NHC collected high water marks in the winter of 2014 and will verify the model accuracy with these data. The HEC'RA5 model 100-year water surface will then be compared to the Ievee survey (conducted during the Site Reconnaissance and Field Data Collection task) to determine the amount offreeboard. Any identified settlement issues (from Task 6) will be taken into account in evaluating freeboard. If existing freeboard is insufficient, but greater than 2', a variance may be obtained. The variance must be based on a risk based analysis approach addressing water level uncertainty. If needed, a risk analysis will be conducted, based on prior NHC work conducted for the City of Kent, in a later phase of the project. Any segments of levee not meeting 2' freeboard or reliability targets will be identified and targeted for design and construction of modifications (and addressed in later phases of the project). ASSIGNMENTS NHC: Validate existing hydraulic model and evaluate freeboard. Identify any improvement needs and certify freeboard requirements are met. AMEC: No assignments under this task. KPG: No assignments under this task. City: No assignments under this task. DELIVERABLES • Documentation of the freeboard analysis and identification of any freeboard deficiencies. Page 4 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works TASK 4. EMBANKMENT PROTECTION ANALYSIS Certification is required to show the embankment surface will sufficiently protect the levee from scour and erosion ([FR6SJU.b3). The adequacy of embarikment protection will be informed in part by the Data Review and Site Reconnaissance and Field Data Collection tasks, as-built drawings, a boat-based low flow survey in late summer to inspect the levee toe condition, and field visits. NHC will determine bank velocities and bed scour potential along the Green River during the base 100-year flood using the existing RAS model and information already developed by NHC during work for the City of Kent on their levee system. The existing levee system demonstrates that vegetation provides sufficient protection above the ordinary high water (OHW) line. The design plans and Ievee inspections also indicate that there is a layer ofriprap below accreted soil in many locations, providing an additional factor of safety. Below the OHW, the native solis cannot resist erosive forces and must be protected. In addition to surficial erosion, general, contraction, and bend scour can erode the levee toe. NHC will evaluate the potential scour against the existing toe protection to determine if improvements are required. Design and construction services for any embankment protection features will be conducted in a later phase of the project. ASSIGNMENTS NHC: Hydraulic modeling to determine velocities and scour. Evaluate adequacy of existing embankment protection to resist scour and erosion. Identify any deficiencies. AMEC: No assignments under this task. KPG: No assignments under this task. City: No assignments under this task. DELIVERABLES • Documentation of embankment protection evaluation to be incorporated into project report. • Certification that Ievee meets embankment protection requirements or identification of deficiencies. TASK 5. EMBANKMENT AND FOUNDATION STABILITY ANALYSIS For the embankment and foundation stability analysis, up to ten representative cross sections will be established along the levee. Cross section survey data from the FEMA Flood Insurance Study and 2013 LiDAR will be used as a first cut in characterizing bank slopes for the geotechnical analysis. These representative cross sections will be analyzed for siope stability using the Corps of Engineers Levee Design Manual scenarios of end of construction, full pool, sudden drawdown, and earthquake loading. Seepage potential and seismic stability will also be evaluated. NHC will develop hydrographs for flooding duration and maximum drawdown rate. AMEC will then use these data, in combination with the future scour potential determined by NHC in Task 4, for the stability analysis. The analyses will leverage existing data to the greatest extent possible. As addressed in the Data Review and Site Reconnaissance and Field Data Collection tasks, the previous borings and as-built information will be reviewed, as well as subsequent survey and other documentation, and a site visit will occur to confirm and document existing conditions including field checks of stormwater outfall operational condition. The analyses will be supplemented by additional drilling and lab testing conducted under Task 2. Page 5 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works Initial stability and seepage analyses will be conducted to identify cross sections that are certifiable, arid sections that are not certifiable. Design and construction services for any embankment and foundation stability improvements will be conducted in a later phase of the project. ASSIGNMENTS NHC: Develop and provide hydraulic data needed for the stability analysis. AMEC: Conduct initial slope and seismic stability, and seepage potential analyses, using collected data. Draft text summarizing analysis to be incorporated into project report. Certify Ievee stability is sufficient or identify deficiencies. Provide recommendations for further studies for marginally stable areas, if required. KPG: No assignments under this task. City: No assignments under this task. DELIVERABLES • Draft documentation on embankment and foundation stability analysis to be incorporated into project report. � Certification that levee meets embankment and foundation stability protection requirements or identified deficiencies. TASK 6. SETTLEMENT ANALYSIS The amount and distribution of settlement that has occurred since construction will be determined by working with the survey data, coupled with existing and new boring and lab data (see Data Review and Site Reconnaissance and Field Data Collection tasks). Both settlement due to long-term consolidation and Iiquefaction will be evaluated. This will predict future settlement and where new fill might be needed to obtain sufficient freeboard. The settlement analysis is required under CFR 65.1O.b.5 and informs, in part, the freeboard assessment (Task 3). ASSIGNMENTS NHC: No assignments under this task. AMEC: Analyze settlement and prepare draft documentation to be incorporated into the project report. KPG: No assignments under this task. City: No assignments under this task. DELIVERABLES • Draft documentation on settlement analysis to be incorporated into project report. TASK 7. INTERIOR DRAINAGE ANALYSIS An interior drainage analysis (IDA) is necessary to evaluate flooding sources and potential ponding stages on the landward side of the levee (CFR6S.1U.b.6). The Corps does not consider any of the pump stations or stormwater system other than the outfalls to be part of the project, so data for this task will come from City and County sources. The same approach will be used that has been accepted by FEMA reviewers on four City of Kent levees. An HSPF hydrologic model will be developed and used to simulate a long-term time series of local runoff within the area protected by the Ievee. The major drainage components of the City's stormwater system, and all stormwater pump and gravity drain outfalls to the Green River, will be determined from City GIS databases and records. The stormwater system will be added to a modified version of the FIS Page 6 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works HEC-RAS model and the model run for a 60 year period. From this Iong-term record, which accounts for the joint probabilities of high river flows and high local runoff as required by FEMA, stage frequency curves will be extracted to determine 100-year ponding elevations on the landward side of the levee and these values compared to the effective FEMA elevations. If the IDA identifies 100-year flood hazards that are higher than those identified by the FEMA study, then revisions will need to be made to the effective FEMA maps in a later phase of the project and the results submitted to FEMA, potentially in the form of a Conditional Letter of Map Revision (addressed in Phase 4). ASSIGNMENTS NHC: Conduct interior drainage assessment. AMEC: No assignments under this task. KPG: No assignments under this task. City: Provide pump station and drainage system information. DELIVERABLES • Documentation on interior drainage assessment to be incorporated into project report. TASK 8. IMPROVEMENT NEEDS SUMMARY Improvements necessary to certify the levee will be summarized, classified as to whether they are small, simple corrections or larger, complex construction projects, and cost estimates to complete project design and provide construction services will be prepared. A work plan will be devised in concert with the City for the next steps of certifying the levee and include adding additional detail to the SOW for later phases of the project. Team members will discuss this summary in a meeting with the City. ASSIGNMENTS NHC, AMEC, KPG, and City: Attend Phase 1 summary meeting. DELIVERABLES • Memorandum describing improvement needs, recommended approach, and cost estimates. COST ESTIMATE The total estimated cost to complete Phase 1 is $447,711 as detailed in Exhibit B "Cost Estimate 9/23/2014". PHASE 2 - ALTERNATIVES ANALYSIS AND SMALL SCALE IMPROVEMENTS Phase 2 will address identified simple, small scale fixes that can be designed and constructed as soon as possible, and conduct the alternatives analyses for large, complex improvements. SmaII scale fixes include those projects where the design is obvious and no permitting is required. Phase 3 will address design, permitting, and construction of Iarge, complex improvements. The Phase 2 SOW will be refined at the completion of Phase 1 and then a Phase 2 cost estimate prepared and submitted to the City. TASK 9. CIVIL DESIGN AND CONSTRUCTION SUPPORT—SMALL SCALE The project team will provide the City a proposed course of action for each small scale fix. KPG will Iead development of plans, specifications, and estimates to allow the City to let the projects to bid. KPG will then engage in construction management of the project. Meetings will be held as needed. Page 7 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works ASSIGNMENTS NHC: Provde hydraulic support as needed. AMEC: Provide geotechnical support as needed. KPG: Engineering design and construction management for small scale, simple capital projects. City: Provide assistance as needed. DELIVERABLES • Documentation as required to address deficiencies. TASK 10. ALTERNATIVES ANALYSIS — LARGE SCALE PROJECTS Phase 1 may identify required projects that are of a larger and more complex scale. The most likely sourcesxviUbeprojectsthatrequinein+waterworkandconsequentpermittingissues,and|evee improvements required to address deep seated failure risk through the use of sheet pile walls or other complex alternatives. For these larger projects, an initial alternatives assessment will be conducted by the consultant team. Up to three alternatives will be assessed for each project using objectives and performance metrics developed in conjunction with the City. A recommended alternative will be selected and presented to the City for approval prior to beginning Phase 3 work. ASSIGNMENTS NH[: Lead alternatives analysis. Develop alternatives. Provide hydraulic support as needed. AMEC: Assist with developing alternatives. Provide geotechnical support as needed. KPG: Assist with developing alternatives. Preliminary cost estimates. City: Provide input on alternatives assessment metrics. DELIVERABLES • Alternatives Assessment memorandum for each large scale project documenting the process selection criteria, and preferred alternative. PHASE 3 - LARGE SCALE IMPROVEMENTS Phase 3 will provide civil design and construction support of the preferred design determined in Phase 2 for large scale, complex physical deficiencies. Meetings will be held as needed. The SOW for Phase 3 will be refined at the completion of Phase 1 and a cost estimate prepared. TASK 11. CIVIL DESIGN AND CONSTRUCTION SUPPORT — LARGE SCALE KPG will take the lead on plans, specifications, and engineering to develop and resolve deficiencies. NHC and AMEC will provide specifications and direction on key hydraulic and geotechnical design features. KPG will provide construction management services for the projects. ASSIGNMENTS NHC: Provide hydraulic technical input based on work completed in prior tasks. AMEC: Provide geotechnical technical input based on work completed in prior tasks. KPG: Lead efforts for construction of physical deficiency corrections including creating PSE and providing construction support. City: Provide assistance as needed. Page 8 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works DELIVERABLES • Full PSE packages suitable for bid letting. Construction management documentation as required. TASK 12. ENVIRONMENTAL/PERMITTING Capital improvements required to address deficiencies will likely require permits to be obtained. If work is required on the riverward side of the levee, federal permits triggering ESA consultations may be required. AMEC will provide permitting support for any required capital projects if requested by the City. ASSIGNMENTS NH[: Hydraulics support for permitting. AMEC: Provide permitting support as needed for the project. KPG: Civil design support for permitting. City: No assignments under this task. DELIVERABLES • Permit submittal packages as required to meet environmental/permitting needs. PHASE 4-CERTIFICATION SUBMITTAL Once all deficiencies have been identified and corrected, the Tukwila Levee Certification report will be prepared for submittal. The SOW for Phase 4 will be refined at the completion of Phase 1 and a cost estimate prepared. TASK 13. OPERATIONS PLANS AND CRITERIA DOCUMENTATION An Operations and Maintenance (O&M) manual meeting FEMA requirements for the levee (CFR 65.10.c) will be created, primarily by combining existing manuals. The basis of the manual will be the existing Corps approved manual but will also adopt other recent policies and procedures, if appropriate, such as those from the ongoing King County SWIF process (on which NHC is part of the consultant project team). Additions may be necessary where other infrastructure, particularly bridge embankments, serve as part of the levee system, but are not considered by the Corps as part of their project, and hence are not addressed in the existing manual. The O&M manual must also address the stormwater system that provides interior drainage for the City; therefore, all the City's pump stations will need to be addressed. FEMA requires clear ownership of the Ievee system be demonstrated. As WSDOT owned 1-405 bridge embankment is high ground and the downstream tie-in, an inter-jurisdictional agreement will need to be made between the City and WSDOT. Kent and WSDOT have recently determined a method to address the issue within the City of Kent and we expect the same process to be followed. This task will be required to be led by the City but the consultant team will provide the technical materials needed. ASSIGNMENTS NH[: Prepare documentation, including references to existing manuals, to meet CFR 65.10.c requirements. AMEC: Assist with document preparation. KPG: No assignments under this task. Page 9 of 11 Tukwila 205 Levee Certification Scope of Work 9/30/14 Final City of Tukwila Department of Public Works City: Assist with providing existing O&M manuals. Lead inter-jurisdictional agreement at downstream tie-in to high ground. DELIVERABLES • Draft and final versions of O&M report. � Technical materials for inter-jurisdictional agreement at downstream tie-in. TASK 14. REFINE ENGINEERING ANALYSES Engineering analyses conducted in Phase 1 may need to be refined to reflect any constructed levee improvements and demonstrate that the levee meets certification requirements. The project team will revise the Phase 1 analyses, as needed, and update the documentation for the levee certification. ASSIGNMENTS NHC, AMEC, KPG: Revise Phase 1 engineering analyses, as needed. DELIVERABLES • Final documentation of engineering analyses. TASK 15. PROJECT DOCUMENTATION SUBMITTAL AND REVIEW Once all technical analyses are complete and any deficiencies addressed, a certification report package will be prepared. NHC will take the Iead in preparing this document and combining reports, as-built plans, and other files required. The certification document will be combined with some certifications from the City related to the O&M manual into a final report and submitted to FEMA. The project team will address review comments provided by FEMA. Whether the project report is submitted as a CLOMR through STARR, FEMA's consultant, or directly through local FEMA Region X for review will be determined during the project. NHC will engage FEMA Region X early in the project to determine which of these paths is most likely. ASSIGNMENTS NH[: Prepare submittal package, to meet CFR 65.10.c requirements. AMEC: Assist with document preparation. KPG: Assist with document preparation. City: Assist with document preparation, including providing required City signatures and formal authorizations. DELIVERABLES • Draft project documentation. • Final project documentation. Page 10 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works SCHEDULE. A tentative schedule is shown below. Timing beyond Phase 1 will depend heavily on the number and complexity of any Ievee certification deficiencies. Phase 1 work will begin immediately 50 that any Ievee improvement needs are identified as soon as possible. The goal is that simple construction projects for small improvements can be built quickly, with the larger, more complex projects for addressing deficiencies built in the summer/eady fall of 2016. Once all improvements have been addressed, documentation for certification will be prepared with a planned submittal to FEMA for their review at the end of calendar year 2016. 2EI�/$DJ FMoAMJ J ASOND� PHASE 1 Task 1. Data Review Task 2. Ste Reconnaissance nce and Field Data Collection Task 3. Freeboard Analysis Task 4. Embankment Protection Anal sis Task 5. Embankment and Foundation Stabilit Analysis Task 6. Settlement Analysis Task 7. Interior Drainage Analysis Task 8. Improvement Needs Summa PHASE 2 Task 9. Civil Design arid Construction Su s sort - Small Scale Task 10. Alternatives Analysis Large Scale PHASE 3 Task 11. Civil Desigri and Construction Support - Lar:e Scale Task 12. Environmental/Permitting PHASE 4 Task 13. Operations Plans and Criteria Documentation Task 14. Refine Engineering Analyses Task 15. Project Documentation and Submittal 111 11111111 Page 11 of 11 Tukwila 205 Levee Certification Scope of Work - 9/30/14 Final City of Tukwila Department of Public Works EXHIBIT B COST ESTIMATE 9/23/2014 Northwest; Hydraulic Consultants Inc.' 16300 Christensen Road, Suite 350 Prepared for Ryan Larson Seattle, WA 98188 Project: Tukwila Levee Certification Tel. (206) 241 -6000 Date: September 23, 2014 Fax (206) 439 -2420 Project No.: P214038 Prepared By: Todd Bennett Labor Detail' Task Description Principal Senior Engineer Engineer GI5 Analyst Prod. Specialist Sr. Contract Specialist Cost 1 DATA REVIEW 2 SITE RECONNAISSANCE AND FIELD DATA COLLECTION 3 FREEBOARD ANALYSIS 4 EMBANKMENT PROTECTION ANALYSIS 5 EMBANKMENT AND FOUNDATION STABILITY ANALYSIS 6 SETTLEMENT ANALYSIS 7 INTERIOR DRAINAGE ANALYSIS 8 IMPROVEMENT NEEDS SUMMARY 24 12 14 24 8 14 24 40 32 24 48 32 32 40 80 144 80 80 40 144 80 32 40 24 40 32 64 40 4 0.5 0.5 0.5 0.5 0.5 1 0.5 $ 24,830 $ 28,813 $ 19,008 $ 26,860 $ 14,846 S 0 $ 31,018 $ 25,681 Total Hours 120.0 248.0 648.0 272.0 4.0 4.0 $ 171,058 Cost Based Rate (201.96 OH, 12 %fee) $ 231.90 $ 184.12 $ 120.02 $ 69.63 $ 73.49 $ 140.37 Total Direct Labor: Direct Expense Detail Description Units Rate Cost Survey Equipment (Sounder, RTK, and boat) Contract for levee brushing 1 $4,350.00 $ 4,350 $ 30,000 1 $30,000.00 Total Direct Expenses: $ 34,350 Subconsultants Firm Sub Fee Markup % Markup Cost AMEC KPG $ 136,270 $ 84,006 10% 10% $ 13,627 $ 8,401 $ 149,897 $ 92,406 Total Subconsultants: $ 242,303 Cost Summary Description Cost Total Labor Total Direct Expenses Total Subconsultants $ 171,058 $ 34,350 $ 242,303 Total Project Cost: $ 447,711 amed3 EXHIBIT B - SUMMARY OF COSTS PHASE 1 - ENGINEERING ANALYSIS AND IMPROVEMENT IDENTIFICATION Tukwila 205 Levee Certification Geotechnical Services Tukwila, Washington AMEC Environment & Infrastructure, Inc. DIRECT SALARY COST (DSC): Classification (AMEC Class Code Hours x Hourly Rate Cost Principal (623-624) 144 Description $69.95 Burdened Labor Cost $10,072.80 Associate (619-622) 23 Data Review $52.83 3,967 $1,215.09 Senior 2 Engr/ Sci (616-618) 483 Field Reconnaissance and Data Collection (includes drilling and lab testing) $41.89 $ 36,699 $20,232.87 Senior 1 Engr/ Sci (614-615) 1 Embankment and Foundation Stability Analysis $38.03 38,919 $38.03 Tech Prof 3 (611-613) 0 Settlement Analysis $33.05 10,327 $0.00 Tech Prof 1-2 (608-610) 0 Improvement Needs Summary $29.50 8,513 $0.00 CAD Tech 5 (517-520) 37 Total $30.90 98,425 $1,143.30 Tech 1-4 (501-516) 0 $25.00 $0.00 Admin 4-5 (809-814) 8 $24,56 $196.48 Admin 1-3 (801-808) 11 $20.81 $228.91 TOTAL DSC 707 OVERHEAD COST (OH COST - including salary additives): OH Rate of 1.6711 x DSC 1.6711 x FIXED FEE (FF): FF Rate of 0.30 x (DSC) 0.3 x REIMBURSABLES: Field Expenses (mileage, equipment, etc.) Subcontract Expenses (driller, traffic, lab) (10% mark-up) TOTAL REIMBURSABLES TOTAL $33,127.48 = $33,127.48 = $1,372.80 $36,472.15 APPROXIMATE BREAKDOWN OF COSTS BY TASK Task Description Hours Burdened Labor Cost Other Direct Costs Total 1 Data Review 26 3,967 $ 35 4,002 2 Field Reconnaissance and Data Collection (includes drilling and lab testing) 314 $ 36,699 $ 37,775 74,474 5 Embankment and Foundation Stability Analysis 266 38,919 38,919 6 Settlement Analysis 71 10,327 - 10,327 8 Improvement Needs Summary 53 8,513 $ 35 8,548 Total 730 98,425 37,845 $ 136,270 Total $33,127.48 $55,359.33 $9,938.24 $37,844.95 $136,270.01 HOUR AND FEE ESTIMATE Project: City of Tukwila 205 Levee Certification Green River - S. 196th St to 1-405 EXHIBIT B Architecture • Landscape Architecture • Civil Engineering • Task1 - Data Review Management / progress reports 6 4 0 0 0 0 0 2 6 $ 2,320.76 Review /assemble existing data 8 12 8 0 0 16 0 0 2 $ 5,607.30 Meetings 8 4 0 0 0 0 0 0 0 $ 2,008.38 Mileage 0 1 5 0 0 30 40 0 0 $ 50.00 Reproduction 0 0 0 0 0 5 20 0 $ 200.00 0 $ 3,230.07 $ _ Task Totals 22 20 8 0 0 16 0 2 8 $ 9,986.44 Task 2 - Site Reconnaissnce and Field Data Collection Survey levee crest profile 0 2 10 0 0 20 ! 80 0 0 0 $ 14,361.04 Survey up to 20 land based cross sections 0 1 5 0 0 30 60 0 0 0 $ 11,703.31 Pick up low chord and center of pier on bridges 0 2 5 0 0 10 30 0 8 0 $ 5,924.52 Fill in gaps or provide additional detail in key areas 0 1 5 0 0 30 40 0 0 $ 8,904.15 Layout profile stationing at 100' to 200' interval. 0 0 0 0 0 5 20 0 $ 200.00 0 $ 3,230.07 Pick up 18 boring locations 0 0 0 0 0 5 10 0 i 0 I$ 1,830.49 Mileage 52 ; 88 0 0 8 0 0 16 $ 800.00 Reproduction $ 200.00 Task Totals 0 6 25 0 0 100 240 0 1 0 $ 46,953.59 Task 8 - Improvement Needs Summary Assist with prioritization and scope of improvements 1 16 24 40 0 0 0 0 0 8 $ 11,522.40 Assist with budget level cost estimates 8 24 40 0 0 0 0 0 4 j $ 9,791.35 Coordination meetings 16 4 8 0 0 8 0 0 4$ 5,351.75 Mileage I I $ 200.00 Reproduction i $ 200.00 Task Totals 40 52 ; 88 0 0 8 0 0 16 j $ 27,065.51 Hourly rates are based on the following: Direct Salary Costs Overhead Rate Fixed Fee $ 65.00 $ 52.06 $ 41.83 $ 45.67 $ 36.06 Total Estimated Fee: $ 84,005.53 Totals $ 50.75 $ 40.87 $ 26.92 145.78% 30% 6/20/2014 30, 098.46 43, 877.53 9.029.54