HomeMy WebLinkAboutTIS 2021-12-13 Item 2B - Grant Application - Surface Water Fund: Nelsen Side Channel with King CountyCity 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: Mike Perfetti, Surface Water Sr. Program Manager
CC: Mayor Ekberg
DATE: December 10, 2021
SUBJECT: Surface Water Fund - Nelsen Side Channel
Project No. 91641203
Grant Application
ISSUE
Authorize the submittal of a grant application to King County's new Open Space -River Corridors (ORSC) grant program and
other future grant opportunities to fund the Nelsen Side Channel project.
BACKGROUND
The Nelsen side channel is a remnant section of the Green River as it existed prior to the construction of 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 its new ORSC grant program. City policy requires approval by the appropriate
committee before applying for grants with a match requirement. The OSRC program goal is to deliver projects that help
restore the natural functions of rivers and the benefits they provide to our environment and communities, including providing or
restoring public access to the water, improving the ecological function of a waterbody, or increasing public awareness of river
corridors as valuable natural resources. Cities within King County are eligible to apply.
FISCAL IMPACT
The City is seeking $300,000 in grant funding for project design and permitting. The grant application indicates that a 20%
local city match, or $75,000, is required. The city match can be allocated from the Nelson Side Channel Project budget, which
has of $147,000 from the Surface Water utility fund dedicated in 2021-2022 and is more than adequate to cover the costs of
the match.
Funding Source
ORSC Grant
Utility Revenue
Total
Amount
$300,000
75,000
$375,000
2021-2022 Utility Budget
$147,000
RECOMMENDATION
Committee approval is being asked for the submittal of the ORSC grant and other grant opportunities that may become
available for the Nelsen Side Channel project.
Attachment: 2021 CIP Pg. 87
17
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.
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)
2019 2020
2021
2022
2023
2024
2025
2026
BEYOND TOTAL
EXPENSES
R--
..r Project Location
;'
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~� '
Design
50
220
240
IIS .�� ,:
510
Land (R/W)
!
5
5
,, s
10
Monitoring
0
Const. Mgmt.
385
.„A
..�
385
Construction
1,440
NNW
1,440
TOTAL EXPENSES
0
55
225
240
1,825
0
0
0
0
2,345
FUND SOURCES
7 i
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Awarded Grant
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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
20 2021 - 2026 Capital Improvement Program
87
18
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20 2021 - 2026 Capital Improvement Program
87
18