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Home My WebLink AboutTIS 2022-11-07 Item 2C - Grant Acceptance - King County Cooperative Watershed Management Grant for Nelsen Side Channel, Gilliam Creek and Riverton CreekCity of Tukwila Allan Ekberg, Mayor Public Works Department .. Hari Ponnekanti, Director/City Engineer INFORMATIONAL MEMORANDUM TO: Transportation and Infrastructure Services Committee FROM: Hari Ponnekanti, Public Works Director/ City Engineer BY: Brittany Robinson, Public Works Grant Analyst CC: Mayor Ekberg DATE: November 4, 2022 SUBJECT: Surface Water Fund — Nelsen Side Channel, Gilliam Creek, Riverton Creek Project No. 91641203, 99830105, 99830103, King County Cooperative Watershed Management Grant Award ISSUE Accept a King County Cooperative Watershed Management (CWM) grant award to fund the Gilliam Creek Fish Barrier Removal, Nelsen Side Channel, and Riverton Creek Projects. BACKGROUND Nelsen Side Channel The project will open up one acre of off -channel floodplain habitat and restore another acre of riparian forest by setting back a levee and reconnecting the river with its historic channel. Gilliam Creek Fish Barrier Removal The project will create fish passage between Gilliam Creek and the Green River in Tukwila. Gilliam Creek is mostly inaccessible to aquatic species due to the presence of a 1960s era 108" -diameter flapgate at the outlet of a 207 -foot -long culvert beneath 66th Ave. S. Riverton Creek Flapgate Removal The project was completed in 2021. This project restored fish access to Riverton Creek and reestablished previously inaccessible rearing habitat at the confluence with the Duwamish River. In the early months of 2021, plants were installed to restore vegetation at the project site. Actively managing the restored vegetation during the plant establishment period is critical to ensuring that the restoration is successful, our investments are protected, and grantee obligations are met. DISCUSSION The City recently received notification that it was awarded King County CWM grant funding for design of both the Nelsen Side Channel and Gilliam Creek Fish Barrier Removal projects, as well as vegetation maintenance for the Riverton Creek project. FISCAL IMPACT The City has been awarded $390,000 from the King County CWM. King County requires leverage to ensure that there is full project funding. Leverage can come from other grant match or local City match. The majority of the leverage for these projects will come from other grant sources, with the exception of $17,032 in match for the Riverton Creek Project. The City match for the Riverton Creek project will come from the Green the Green CIP budget, which supports ongoing maintenance of vegetation. The $55,000 budgeted in 2023 is sufficient to cover the City match. Project Grant Award Leverage Source: Grants Source: City Gilliam Creek $250,000 $1,161,000 $1,161,000 $0 Nelsen Side Channel 100,000 47,000 47,000 0 Riverton Creek 40,000 17,032 0 17,032 Total $390,000 $1,225,032 $1,208,000 $17,032 47 Informational Memorandum, Page 2 RECOMMENDATION Council is being asked to formally accept the King County (KC) Cooperative Watershed Management (CWM) grant award in the amount of $390,000 to fund the Gilliam Creek Fish Barrier Removal, Nelsen Side Channel, and Riverton Creek Projects and consider this item on the Consent Agenda at the November 21, 2022 Regular Council Meeting. Attachments: 2021 CIP Page 82, 85, 87, 90 Grant Contract Https://Tukwilawa.Sharepoint.Com/Sites/Publicworks/Engineering/PW Drop Box/01 TIC Agenda/2022 Agenda Items/TIC 11-07-22/2. KC CWM Grant Awards- Gilliam Creek, Nelsen Side Channel, Riverton Creek/Info Memo - KC CWM Grant Award.Docx 48 CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2021 to 2026 PROJECT: Green the Green Program Project No. 91641202 DESCRIPTION: Interdepartmental effort to provide trees along the Green River and its tributaries in order to provide shade and cooler water temperatures to threatened salmon and steelhead. JUSTIFICATION: WRIA 9 has identified warm water temperatures as an impediment to salmon recovery, and has also started a funding program called, "ReGreen the Green" which aims to support revegetation projects along the river. STATUS: CIP utilized for restoration at NC Machinery & Southcenter Plaza. Planting completed and maintenance began in 2020. Other opportunities are being identified in a collaborative effort between Public Works and DCD. MAINT. IMPACT: Expected to increase maintenance. COMMENT: Grant funding ongoing. Funding to date has come from WRIA9, King Co., and the Rose Foundation. FINANCIAL Through Estimated (in $000's) 2019 2020 2021 2022 2023 2024 2025 2026 BEYOND TOTAL EXPENSES Project Location on 12lai 13• _ Design 30 5 20 5 20 5 20 5 30 140 Land (R/W) 5 5 3 5 18 Monitoring � m �♦ 10 20 20 30 30 20 45 45 220 Const. Mgmt. 2 7 20 20 20 20 89 Construction 45 136 wg.S 100 \\�_e�t 100 { 100 100 581 TOTAL EXPENSES 77 158 45 145 55 155 40 173 200 1,048 FUND SOURCES Awarded Grants KC 19 113 132 Proposed Grants 50 50 50 50 200 Rose Foundation 13 12 25 Mitigation Expected 0 City Oper. Revenue 45 33 45 95 55 105 40 123 150 691 TOTAL SOURCES 77 158 45 145 55 155 40 173 200 1,048 2021 - 2026 Capital Improvement Program 82 49 Project Location on 12lai 13• _ , 11111 il 1 bil m 5 144 5t m m � m �♦ / 'Ir. , 'to 0: .T.4.1 bar Aillo St m A2slaast 47' p6 / ��av wg.S 156 6t \\�_e�t I �� " 404 `: GIS , C/''Ali { S160 St �Tu DePkwy Dl 2 2021 - 2026 Capital Improvement Program 82 49 PROJECT: DESCRIPTION: JUSTIFICATION: STATUS: MAI NT. IMPACT: COMMENT: CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2021 to 2026 Gilliam Creek Fish Barrier Removal Project No. 99830105 Construct fish passage improvements at existing flap gate and restore salmonid habitat; replace flap gate which may include a self-regulating tide gate or flood wall. Enable fish access to lower Gilliam Creek under wider range of flow conditions; fish barrier per WDFW and City; WRIA 9 salmon habitat project. Analysis of lower Gilliam Creek is being conducted in 2018 to determine the best solution for fish passage and to address potential flooding. Likely a shift in maintenance commitments with potential elimination of flapgate maintenance. In 2020, SRFB listed as Project of Concern, WRIA pulling funding from this cycle; BA Fish Barrier Board - scored 63 of 94; outcomes yet to be determined; $100K allocated in CWM via WRIA 9. FINANCIAL Through Estimated (in $000's) 2019 2020 2021 2022 2023 2024 2025 2026 BEYOND TOTAL EXPENSES °5 12. \,r' Project Location : ,, 287 mi 1jr .A.., Design 60 '11;h SI 936 536 405 Alits_ 31 ;aj 1,937 Land (R/W) 9a m 5744 st i mm m � 6 m • ♦ A :4'2' 0 Monitoring 6St n D m a , ♦♦ 0 Const. Mgmt. N ' S ♦� 7 I„__S156 752 400 1152 Construction ' , 5,200 2,000 13 `thee Ill . ► /f/ 7,200 TOTAL EXPENSES 60 0 936 536 405 5,952 2,400 0 0 10,289 FUND SOURCES Awarded Grant 0 Proposed Grant 708 350 258 4,760 1,000 7,076 Mitigation Actual 0 Mitigation Expected 0 City Oper. Revenue 60 0 228 186 147 1,192 1,400 0 0 3,213 TOTAL SOURCES 60 0 936 536 405 5,952 2400 0 0 10,289 2021 - 2026 Capital Improvement Program 85 50 °5 12. \,r' Project Location : ,, 287 mi 1jr .A.., '11;h SI Alits_ 31 ;aj 9a m 5744 st i mm m � 6 m • ♦ A :4'2' 6St n D m a , ♦♦ S14SStm'4751�i N ' S ♦� 7 I„__S156 'av a, uaT-rea ' , ,141 13 `thee Ill . ► /f/ �fC . \it,`/.� 40� .1.., .1. 5, �G.' r , 1 Tukwila Pkwy = /��"r 2021 - 2026 Capital Improvement Program 85 50 CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2021 to 2026 PROJECT: Nelsen Salmon Habitat Side Channel Project No. 91641203 DESCRIPTION: Create an off -channel salmon rearing habitat side channel by connecting a segment of historic river channel with the Green River. JUSTIFICATION: WRIA 9 has identified this project a proposed action in the Salmon Habitat Plan. 1 Ile piuJC1;1 ales is WiuIll I Jtd1e tabus, Uu1 LI IC !Lel 11 is 10 1IdIISIel 10 Lm.y. 1 Ile ptojeu1 [tidy IanC Endue STATUS: under an aquatic lease (DNR), depending on timing. Grant application for design funding submitted to Floodplains in 9n9n ,n,ith o Into, nrnhnhilit , of eI Irrcee MAINT. IMPACT: Expected to increase maintenance COMMENT: Property acquisition to the north could create the opportunity for a side channel and additional flood storage, or potentially combine this with Gilliam Creek Fish Barrier project depending on funding source feedback. FINANCIAL Through Estimated (in $000's) 2019 2020 2021 2022 2023 2024 2025 2026 BEYOND TOTAL EXPENSES 512 `` Project Location ;�� Nag,/`0: _ )� r Design 50 220 240 A._ svoil 510 Land (R/W) ") I ill 5 5 Iii, A Ili ‘ 10 Monitoring /pI ®lice D D . • 0 Const. Mgmt. 385 385 Construction 1,440 na 7St 475IiIi 1,440 TOTAL EXPENSES 0 55 225 240 1,825 0 0 0 0 2,345 FUND SOURCES `_ ��/� �r c 01- alb Aim$C S 160 TU " St iiia �t r 7 Awarded Grant 0 Proposed Grant 100 218 1,232 1,550 Mitigation Actual 0 Mitigation Expected 0 City Oper. Revenue 0 55 125 22 593 0 0 0 0 795 TOTAL SOURCES 0 55 225 240 1,825 0 0 0 0 2,345 2021 - 2026 Capital Improvement Program 87 51 512 `` Project Location ;�� Nag,/`0: _ )� r lR . ,A,,,,,,...._ ,,„ A._ svoil , , 4v ") I ill Iii, A Ili ‘ /pI ®lice D D . • na 7St 475IiIi 7 !RIM S 16 \ -4c�e�re� � ► + I `_ ��/� �r c 01- alb Aim$C S 160 TU " St iiia �t r 7 2021 - 2026 Capital Improvement Program 87 51 CITY OF TUKWILA CAPITAL PROJECT SUMMARY 2021 to 2026 PROJECT: Riverton Creek Flap Gate Removal Project No. 99830103 Remove two culverts and flap gates that confluence with the Duwamish River; daylight creek, install trail bridge DESCRIPTION: over creek, habitat improvements and planting for 1,200 lineal feet of creek, inc 1/4 acre backwater wetland habitat and 400 ft of river; associated structural improvements for TIB roadway and adjacent commercial property. JUSTIFICATION: Increase available salmonid rearing habitat and increase flood refuge in lower Duwamish River. Improve fish access to Riverton Creek and enhance salmon rearing and resting area. STATUS: Project construction began in 2020. MAINT. IMPACT: Expected to increase maintenance. Construction funding from the State RCO Salmon Recovery Funding Board, King County Cooperative COMMENT: Watershed Management, King County Opportunity Funds, the WRIA 9 Re -green the Green Program and City Surface Water Funds. FINANCIAL Through Estimated (in $000's) 2019 2020 2021 2022 2023 2024 2025 2026 BEYOND TOTAL EXPENSES Project Location '�\, II PR Design 391 l Gy , 'y, y 391 Land (R/W) \, iit \, Ilkt Al" ' W ' ♦1' 0 Monitoring 25 25 Const. Mgmt. 200 5 205 Construction 1,654 25 1,679 TOTAL EXPENSES 391 1,854 55 0 0 0 0 0 0 2,300 FUND SOURCES Awarded Grant RCO 116 781 897 King County Grant 240 50 290 People for Puget S 30 30 Mitigation Expected 0 Utility Revenue 245 833 5 0 0 0 0 0 0 1,083 TOTAL SOURCES 391 1,854 55 0 0 0 0 0 0 2,300 2021 - 2026 Capital Improvement Program 90 52 Project Location '�\, II PR l Gy , 'y, y \, iit \, Ilkt Al" ' W ' ♦1' t linn30 strip a. / L 2021 - 2026 Capital Improvement Program 90 52 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 AGREEMENT FOR AWARD OF COOPERATIVE WATERSHED MANAGEMENT GRANT FUNDS BETWEEN THE CITY OF TUKWILA AND KING COUNTY This Agreement is made between King County, a municipal corporation, and the City of Tukwila ("Recipient"), for the purposes set forth herein. This Agreement shall be in effect from the date of execution to December 31, 2025. Primary Contact for King County- Kim Harper, Grant Administrator, 206-477-6079, Kim.harper@kingcounty.gov. Primary Contact for Recipient: Mike Perfetti, Surface Water Senior Project Manager, 206-550- 4930, Mike.perfetti@tukwila.gov. 1.1 SECTION 1. RECITALS Whereas, the King County Flood Control District ("District") is a quasi -municipal corporation of the State of Washington, authorized to provide funding for cooperative watershed management arrangements and actions for purposes of water quality, water resource, and habitat protection and management; 1.2 Whereas King County is the service provider to the District under the terms of an interlocal agreement ("ILA") by and between King County and the District, dated February 17, 2009, as amended, and as service provider implements the District's annual work program and budget; 1.3 Whereas, the Board of Supervisors of the District (the "Board"), the District's governing body, passed Resolution FCD 2021-12 on November 9, 2021, authorizing the King County executive or his designee to develop and administer a grant award program of up to $10,309,697 in 2022 for water quality, water resources and habitat restoration and management projects and activities in King County, provided that the project list is approved by the Board; 1.4 Whereas, in accordance with Resolution FCD2012-07.2 and in its capacity as service provider to the District, King County has established a grant award program, called the Cooperative Watershed Management Award Program, to fund water quality, water resources and habitat restoration and management projects and activities; 1.5 Whereas, the Recipient submitted applications to its respective WRIA forum or committee for the Projects, as described in Exhibit A attached hereto and incorporated herein by this reference, and that body has recommended the Projects for funding under the Cooperative Watershed Management Grant Program in accordance with King County's Cooperative Watershed Management Grant Program Policies and Procedures, a copy of which has been furnished by King County to the Recipient and which are Page 1 of 8 53 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 incorporated herein by this reference ("Grant Policies and Procedures"); 1.6 Whereas the District's Board of Supervisors has received a list of proposed projects that includes the Projects, and the Board of Supervisors has approved the Projects, in Resolution FCD2022-09, for funding up to the amount of $390,000 as follows: $250,000 for the Project titled "Gilliam Creek Fish Barrier Removal and Habitat Enhancement", $100,000 for the Project titled "Nelsen Side Channel", and $40,000 for the Project titled "Riverton Creek Flapgate Removal"; 1.7 Whereas King County has received Scopes of Work and Budgets for the Projects from the Recipient and has determined that the Scopes of Work, attached hereto and incorporated herein as Exhibit B-1, B-2 and B-3, collectively referred to as "Scopes of Work", and the Budgets, attached hereto and incorporated herein as Exhibit C ("Budget Summary"), are consistent with the Grant Policies and Procedures; 1.8 Whereas, King County and the Recipient desire to enter into this Agreement for the purpose of establishing the terms and conditions under which King County will provide funding from the District in accordance with the Policies and Procedures, and the Recipient will implement the Projects. SECTION 2. AGREEMENT 2.1. The Recitals are an integral part of this Agreement and are incorporated herein by this reference. 2.2. King County agrees to award the Recipient an award in the total amount of $390,000 from District funds (the Award). The Award shall be used by the Recipient solely for the performance of the Projects. King County shall pay the Recipient in accordance with the Grant Policies and Procedures. 2.3. The Recipient represents and warrants that it will only use the Award for the Scopes of Work of this Agreement and in accordance with the Project Budgets. The Recipient shall be required to refund to King County that portion of the Award which is used for work or tasks not included in the Scope of Work. Further, the Recipient agrees that King County may retain any portion of the Award that is not expended or remains after completion of the Scopes of Work and issuance of the Final Reports, as further described below. 2.4. Activities carried out for these Projects and expenses incurred by the Recipient may predate the execution date of this Agreement provided that 1) they have been identified by Recipient as being within the scopes of numbers 2) and 3) below, and have been approved by King County as being within such scopes; 2) The activities are specified in the Scopes of Work of this Agreement; 3) the expenses are incurred in carrying out the Scopes of Work and are authorized by the Award as identified in the Budgets of this Agreement; 4) such activities and expenses otherwise comply with all other terms of this Agreement; and 5) such activities and expenses do not occur prior to the date the grants Page 2 of 8 54 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 were approved by the District and reimbursements shall be paid to the Recipient only after this Agreement has been fully executed. 2.5. The Recipient shall invoice King County for incurred expenses for each project separately using the Request for Payment form and Progress Report form, or online equivalents to these forms upon the County's implementation of an online reporting database, for those documented and allowable expenses identified in the Budgets and according to the rules set forth in the Grant Policies and Procedures. Requests for payment shall be made no less frequently than every six months after the effective date of this Agreement nor more frequently than every three months after the aforementioned date. A Progress Report form shall be submitted with all payment requests. A one-time advance may be allowed, in the discretion of King County, for expenses anticipated to be incurred in the three months following the date of submission of the advance Request for Payment only for work that is included in the Scopes of Work of this Agreement, and identified as such in the Request for Payment. The amount of the advance may not exceed 25% of the total award amount. Documentation of payments made from advances shall be submitted to King County prior to any further requests for payment. 2.6. The Recipient shall be required to submit to King County a final report for each Project which documents the Recipient's completion of the work in conformance with the terms of this Agreement within thirty (30) days after the completion of the work. The final reports may be submitted on the Close-out Report form or online equivalent to this form upon the County's implementation of an online reporting database. Each final report shall include a summary of each Project's successes and shall address the watershed benefits accomplished by the work. 2.7. The Recipient's expenditures of Award funds shall be separately identified in the Recipient's accounting records. If requested, the Recipient shall comply with other reasonable requests made by King County with respect to the manner in which Project expenditures are tracked and accounted for in the Recipient's accounting books and records. The Recipient shall maintain such records of expenditures as may be necessary to conform to generally accepted accounting principles as further described in Section 2.8 below, and to meet the requirements of all applicable state and federal laws. 2.8. The Recipient shall be required to track project expenses using the Budget Accounting and Reporting System for the State of Washington ("BARS") or Generally Accepted Accounting Principles set forth by the Financial Accounting Standards Board or by the Governmental Accounting Standards Board. 2.9. King County or its representative, and the District or its representative shall have the right from time to time, at reasonable intervals, to audit the Recipient's books and records in order to verify compliance with the terms of this Agreement. The Recipient shall cooperate with King County and the District in any such audit. Page 3 of 8 55 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 2.10. The Recipient shall retain all accounting records and project files relating to this Agreement in accordance with criteria established by the Washington State Archivist Local Government Common Records Retention Schedule (CORE) as revised. 2.11. The Recipient shall ensure that all work performed by its employees, agents, contractors or subcontractors is performed in a manner which protects and safeguards the environment and natural resources and which is in compliance with local, state and federal laws and regulations. The Recipient shall implement an appropriate monitoring system or program to ensure compliance with this provision. 2.12. The Recipient agrees to indemnify, defend and hold harmless King County, and the District, their elected or appointed officials, employees and agents, from all claims, alleged liability, damages, losses to or death of person or damage to property arising out of any acts or omissions of the Recipient, its employees, agents, contractors or subcontractors in performing its obligations under the terms of this Agreement, except to the extent that the claim arises from the negligent acts or omissions of King County and the District. 2.13. The Recipient agrees to acknowledge the District as a source of funding, and the WRIA as a funding partner, for the Projects on all printed, online, and electronic documents; signage or press releases; audio-visual materials; or any other materials produced in association with the Projects. Grant recipients shall submit documentation of acknowledgement activities with their final reporting documents. SECTION 3. GENERAL PROVISIONS 3.1. This Agreement shall be binding upon and inure to the benefit of the parties and their respective successors and assigns. 3.2. This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof. No prior or contemporaneous representation, inducement, promise or agreement between or among the parties which relate to the subject matter hereof which are not embodied in this Agreement shall be of any force or effect. 3.3. No amendment to this Agreement shall be binding on any of the parties unless such amendment is in writing and is executed by the parties. The parties contemplate that this Agreement may from time to time be modified by written amendment which shall be executed by duly authorized representatives of the parties and attached to this Agreement. 3.4. Each party warrants and represents that such party has full and complete authority to enter into this Agreement and each person executing this Agreement on behalf of a party warrants and represents that he/she has been fully authorized to execute this Agreement on behalf of such party and that such party is bound by the signature of such representative. Page 4 of 8 56 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 3.5. The Projects shall be completed by no later than December 31, 2025. In the event that the Projects are not completed by this date, King County has the discretion, but not the obligation to terminate this Agreement and retain any unexpended Award funds. 3.6. This Agreement may be signed in multiple counterparts. 3.7. If any provision of this Agreement shall be wholly or partially invalid or unenforceable under applicable law, such provision will be ineffective to that extent only, without in any way affecting the remaining parts or provision of this Agreement, and the remaining provisions of this Agreement shall continue to be in effect. 3.8. The amount of the Award has been fully funded by the District. To the extent that funding of the Award requires future appropriations by the King County Council, King County's obligations are contingent upon the appropriation of sufficient funds by the King County Council to complete the Scope of Work. If no such appropriation is made, this Agreement will terminate at the close of the appropriation year for which the last appropriation that provides funds under this Agreement was made. KING COUNTY: RECIPIENT: By By Name Name Title Title Date Date Page 5 of 8 57 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal EXHIBIT A: Project Descriptions Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 WRIA Project Recipient Description Leverage Award 9 Gilliam Creek Fish Barrier Removal and Habitat Enhancement City of Tukwila Create fish passage between Gilliam Creek and the Green River in Tukwila. Gilliam Creek is mostly inaccessible to aquatic species due to the presence of a 1960s era 108" -diameter flapgate at the outlet of a 207 -foot -long culvert beneath 66th Ave. S. $1,161,000 $250,000 9 Nelsen Side Channel Open up one acre of off -channel floodplain habitat and restore another acre of riparian forest by setting back a levee and reconnecting the river with its historic channel. $47,000 $100,000 g Riverton Creek Flapgate Removal Provide two years of maintenance of the Re- green the Green funded revegetation portion of the project that was completed in 2021. $17,032 $40,000 TOTALS $1,225,032 $390,000 Project Locations: Project No. 1: The project is located on the Green River at the confluence with Gilliam Creek in the highly developed Southcenter area of Tukwila. The project will improve the following habitats: mainstem edge, confluence, and tributary. Within the Green-Duwamish watershed, this project is located within the lower Green River, upstream of the salt wedge, but still tidally influenced. The lower Green River watershed is characterized by its levee -restricted banks and massive warehousing district. The primary limiting factor for Chinook salmon recovery in the lower Green is rearing habitat. The site has a narrow buffer of mixed vegetation, with a mature cottonwood canopy; there are two local road stormwater outlets in the project area. Project No. 2: The project is located on the right bank of the lower Green River at river mile 12.5-12.6, within the highly developed Southcenter area of Tukwila. The project will improve mainstem edge habitat, off channel rearing and restore adjacent riparian areas. This project lies within the tidally -influenced reach of Puget Sound, but upstream of the salt wedge. The lower Green River watershed is characterized by its levee -restricted banks and massive warehousing district. The primary limiting factors for Chinook salmon recovery in the lower Green are rearing habitat and water quality, especially temperature. The site has a narrow buffer of mixed vegetation, with a mature cottonwood canopy. Project No. 3: The site is across the river from the Duwamish Gardens and Chinook Wind habitat restoration projects, and adjacent to the SR 599 off ramp to Tukwila International Boulevard. It is located at Duwamish River Mile 6.5, left bank. Page 6 of 8 58 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 EXHIBIT B-1: Scope of Work for Gilliam Creek Fish Barrier Removal and Habitat Enhancement Task Title Task Description (Include Activities and Deliverables) Estimated Percent of Grant Budget Month/Year Task will be Completed Task 1: Project Administration (Required) Submit reimbursement request forms, backup documentation for billing, and progress reports at least every 6 months. Submit a Fiscal Closeout form and a Closeout Report form with the final reimbursement request. 1% October 2023 Task 2: Site survey and investigations 12% December 2022 Task 3: Concept Design 5% March 2023 Task 4: Preliminary Design/30% 12% June 2023 Task 5: 60% Design 15% May 2024 Task 6: Design Permit Applications and Coordination 15% June 2024 Task 7: Stakeholder Coordination 10% January 2025 Task 8: 90% Design 20% January 2025 Task 9: Final Design 10% December 2025 EXHIBIT B-2: Scope of Work for Nelsen Side Channel Task Title Task Description (Include Activities and Deliverables) Estimated Percent of Grant Budget Month/Year Task will be Completed Task 1: Project Administration (Required) Submit reimbursement request forms, backup documentation for billing, and progress reports at least every 6 months. Submit a Fiscal Closeout form and a Closeout Report form with the final reimbursement request. 2% December 2025 Task 2: Site analysis including survey, geotechnical, cultural, hydrologic/hydraulic and critical area reports 15% December 2023 Task 3: Stakeholder coordination including property acquisitions, stakeholder outreach and engagement 14% September 2024 Task 4: Preliminary design — including alternative designs, preferred design and design development to 30%. 14% March 2024 Task 5: Plans, Specifications & Estimate — develop final project plans, specifications and cost estimates with check -ins at 60% and 90% and 100%. 40% September 2025 Task 6: Permitting — develop permit application materials and supporting documents; hold a pre -application meeting and coordinate with permitting agencies through the application and approval process. 15% July 2025 Page 7 of 8 59 Project Names: Project No. 1: Gilliam Creek Fish Barrier Removal and Habitat Enhancement Project No. 2: Nelsen Side Channel Project No. 3: Riverton Creek Flapgate Removal EXHIBIT B-3: Scope of Work for Riverton Creek Flapgate Removal Award Numbers: 4.9.22.010 4.9.22.011 4.9.22.021 Task Title Task Description (Include Activities and Deliverables) Estimated Percent of Total Budget Month/Year Task will be Completed Task 1: Project Administration (Required) Submit reimbursement request forms, backup documentation for billing, and progress reports at least every 6 months. Submit a Fiscal Closeout form and a Closeout Report form with the final reimbursement request. 5% May 2025 Task 2: Watering and weeding for 2 years: a contractor will weed and water the restoration site for 2 years. 95% March 2025 EXHIBIT C: Budget Summary Budget Item Grant Award Amount Gilliam Creek Fish Barrier Removal and Habitat Enhancement Nelsen Side Channel Riverton Creek Flapgate Removal Totals Staffing $10,000 $2,110 $1,793 $13,903 Project Supplies $6,852 $6,852 Commercial Services & Crew Time $240,000 $97,890 $31,355 $369,245 Total $250,000 $100,000 $40,000 $390,000 Page 8 of 8 60