HomeMy WebLinkAboutTIS 2023-02-06 Item 2D - Grant Application - King County Cooperative Watershed Management Grant for Nelsen Side ChannelCity of Tukwila
ALiarr Ekberg, Mayor
Prlbk Works 0 'partrnent - Harr Porrnekantr, 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
Josh Hopkins, Project Manager
CC: Mayor Ekberg
DATE: February 3, 2023
SUBJECT: Surface Water Fund — Nelsen Side Channel
Project No. 91641203
Grant Application
ISSUE
Authorize the submittal of a grant application to the King County 2023 Cooperative Watershed Management (CWM) grant
program.
BACKGROUND
The Nelsen side channel is a remnant section of the Green River as it existed prior to the construction of the 1-405 in the
1960s. The remnant channel is separated from the mainstem of the river by a constructed levee but offers potential as off -
channel rearing habitat for threatened Puget Sound Chinook salmon and other aquatic species. This project will set the levee
back to create a ±1.2 -acre side channel, restore an acre of riparian forest, provide additional flood storage, and provide public
access to the river. Currently, there is a concept design in place for this project and property transfer arrangements are
underway between the City, WDNR and WSDOT.
DISCUSSION
King County is currently seeking applications for the 2023 CWM grant program. The CWM program goal is to deliver projects
that intended to recover ESA -listed salmon species and restore watershed ecosystems. The priorities, driven primarily by
WRIA salmon conservation plans, include habitat restoration and protection, water quality improvements, regionally -
coordinated monitoring, watershed planning, stewardship, outreach, and education. Grant submissions are due on March 3,
2023.
FISCAL IMPACT
The City is seeking $700,000 from the CWM grant program to fund additional acquisition and design costs for the Nelsen Side
Channel Project. The grant application indicates that the City must leverage costs outside of the grant request. In this case,
the leveraged costs have already been funded by other grants.
Amount Fund Source Leverage Budget
CWM Grant $700,000 2021 CWM $250,000
Leverage 600,000 RCO 100,000
Total $1,300,000 OSRC 250.000
Total $600,000
RECOMMENDATION
Committee is being asked to approve the submittal of the Cooperative Watershed Management grant application for the
Nelsen Side Channel project.
Attachments: 2023 CIP Page 83
Project Milestones
47
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2023 to 2028
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.
The project area is primarily within State lands, but the intent is to transfer to City. The project may take place
STATUS: under an aquatic lease (DNR), depending on timing. Grant application for design funding submitted to Floodplains
in 2020 with a low probability of success.
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)
2021 2022 2023
2024
2025
2026
2027
2028
BEYOND TOTAL
EXPENSES
Project Location
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Design
50
300
300
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650
Land (R/W)
5
300
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305
Monitoring
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Const. Mgmt.
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385
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385
Construction
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1,440
6a 7
vonim,
1,440
TOTAL EXPENSES
0
55
600
300
1,825
0
0
0
0
2,780
FUND SOURCES
Awarded Grant
50
150
150
350
Proposed Grant
300
100
1,232
1,632
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
0
5
150
50
593
0
0
0
0
798
TOTAL SOURCES
0
55
600
300
1,825
0
0
0
0
2,780
2023 - 2028 Capital Improvement Program
48
Project Location
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2023 - 2028 Capital Improvement Program
48
Nelsen Side Channel Project Milestones
Target Date
Hire Design Consultant
3/15/2023
Apply for Permits
5/30/2024
Purchase Nelsen Family Trust Parcel
5/30/2024
Cultural Resources Complete
12/31/2023
Data Gathering Started
4/30/2023
Data Gathering Complete
6/30/2023
Preliminary Design Complete
12/31/2023
Final Project Design Complete
6/30/2024
Hire Construction Consultant
03/31/2025
Project Construction to Start
06/01/2025
Project Complete
06/01/2026
49