HomeMy WebLinkAboutTIS 2025-10-27 Item 1C - Grant Acceptance - King County Cooperative Watershed Management Grant for Chinook Wind ExtensionThomas McLeod, Mayor
Public Works Department - Jen Tetatzin, PE, PMP - Director
INFORMATIONAL MEMORANDUM
TO: Transportation and Infrastructure Services Committee
FROM: Jen Tetatzin, Public Works Director
BY: Catrien de Boer, Public Works Analyst
CC: Mayor McLeod
DATE: October 24, 2025
SUBJECT: Surface Water Fund — Chinook Wind Extension
Project No. 92341202 - 2025 Cooperative Watershed Management Grant
ISSUE
Accept a 2025 King County Flood Control District (FCD) Cooperative Watershed Management (CWM)
Grant for $618,324 to fund the final design and construction of the Chinook Wind Extension project.
BACKGROUND
In February 2025, staff applied to the CWM grant program to fund the final design and construction of
the Chinook Wind Extension project. The CWM grants are intended to recover ESA -listed salmon
species and restore watershed ecosystems.
DISCUSSION
In August 2025, City staff received notification of a $618,324 award for Chinook Wind Extension final
design and construction. This project seeks to complete the "missing link" public access trail between
the recently completed Chinook Wind Mitigation Site and Duwamish Gardens. This project will also
create complimentary off -channel habitat that will be utilized by juvenile Chinook, contributing to
species recovery efforts.
FISCAL IMPACT
The City will receive $618,324 from the CWM program. No local match is required. The City also was
awarded a $1,000,000 grant from the King County Parks Open Space -River Corridors program to
supplement this CWM funding for Construction and Construction Management. The total cost for the
Chinook Wind Extension project has increased in part because the project was separated from the
larger Public Works Shops project. This separation requires additional coordination with King County
and other stakeholders, resulting in more staff and consultant time during the design phase before the
project can advance to construction.
Project Budget Phase
2025 CWM Grant $ 618,324.00 Final Design & Construction
King County Parks OSRC Grant $1,000,000.00 Construction & Construction Mgmt
Total $1,618,324.00
RECOMMENDATION
Council is being asked to accept a 2025 Cooperative Watershed Management grant award for the
Chinook Wind Extension project in the amount of $618,324 and consider this item on the Consent
Agenda at the November 3rd, 2025 Regular Council Meeting.
Attachments: 2025-2030 CIP Page
Vicinity Map
Duwamish Gardens Habitat Enhancement Options
19
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2025 to 2030
PROJECT: Chinook Wind Extension Project# 92341202
Project Manager Mike Perfetti Department Surface Water
DESCRIPTION:
JUSTIFICATION:
Following the Public Works Facility Preferred Master Ran (2019) and the Duwamish Gardens Opportunities
for Expansion Concept Plan (2013), this project will develop connecting shoreline habitat and the 'missing
trail link' between Duwamish Gardens and Chinook Wind within recently acquired City property.
This is a Tier 1 project in the WRIA 9 Salmon Recovery Plan, fulfilling a core recovery strategy of restoring,
protecting and enhancing estuary habitat in the Duwamish River. The trail connection has been discussed
in the community for many years and is anticipated to be part of larger, popular shoreline trail.
STATUS: The project is currently at 50% design,
MAINTENANCE IMPACT:
COMMENT:
FINANCIAL (in thousands)
This is a work in progress. The Green Infrastructure Program Proposal is intended, in part, to address
maintenance needs for PW-initiated habitat restoration projects and helping to alleviate pressure on Parks'
given resource constraints. Note that vegetation management maintenance needs decrease over time as
planted vegetation matures. 3 years is considered a rule of thumb for plant establishment.
This grant funded project is being implemented as part of the PW Shops Ph 2 project. There are
expectations by the granting agency that the project will be constructed. It is the middle link of the
Duwamish Gardens/Chinook Wind trail and "blue belt" aquatic restoration corridor.
2025
2026
2027
2028
2029
2030
Beyond
TOTAL
Project Costs
Project Mgmt (Staff Time/Cost)
Design
Construction Mgmt.
Construction
Contingency
$ 10
$ 50
$ 200
$ 1,000
$ 25
$ 10
$ 50
$ 200
$ 1,000
$ 25
Total Project Costs
$ 1,285
$
$ 1,285
Project Funding
Proposed Grant
Utility Revenues
$ 1,000
$ 285
$ 1,000
$ 285
Total Project Funding
$ 1,285
$ 1,285
20
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The information included on this map has been compiled by King County staff from a variety of sources and is
subject to melange without notice. King County makes no representations or warraities, express or implied,
as to accuracy, completeness, trneliness, or Opts to the use of such infoimaticn. Tiffs cbcum,ent is not intended
for use as a survey product King County shAl rot be liable for any general, special, indirect, inddental, or
consequential damages including, but nit irrited to, bst revenues or bst profit resulting from the use or misuse
cif the infonnatbn contained on this map. Any sale of ths map or inforrnaticn on this map is prohibited except by
written permissicn of Kirg County.
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Date: 3/15/2023
Notes:
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OPPORTUNITIES FOR EXPANDED HABITAT ENHANCEMENT
MAY 16, 2013
DMAMISH GARDENS