Nason N1-KDIZ3 Floodplain Reconnection
#12-1843 #12-1843
Organization Upper Columbia Salmon Recovery Board Lead Entity
Sponsor Chelan County Natural Resources Department
Status Dormant
Schedule Start Date: 11/10/2021 End Date: 11/10/2021
Category Category: Restoration
DESCRIPTION
The Nason Creek Floodplain Reconnection project is located just downstream from Coles Corner near Highway 207. The re-alignment of SR 207 in the 1940’s disconnected Nason Creek from the adjacent floodplain in several areas. Nason Creek contains major spawning areas for ESA-listed spring Chinook salmon and steelhead, and it is a bull trout core area. The Wenatchee Watershed Implementation Schedule identifies channel connectivity, off-channel habitat, and channel reconfiguration actions as Tier 1 biological priority actions necessary for species recovery. An alternatives analysis was completed to evaluate ways to re-connect Nason Creek to the adjacent floodplain. The alternatives analysis evaluated the following alternatives to reconnect floodplain near RM 4.6 on Nason Creek: SR 207 Relocation, Full channel reconnection - causeway, Full channel reconnection - two large bridges, Partial channel reconnection - culverts, Engineered log jams, and the No action alternative. Following completion of the Alternatives Analysis in Febuary 2012, the Regional Technical Team requested more information about the feasibility of SR 207 relocation and the biological benefit of reconnecting 77 acres of floodplain habitat. CCNRD completed a feasibility study and SR 207 relocation is estimated to cost 10-20+ million depending upon the alignment selected. There does not appear to be funding for SR 207 relocation so this proposal is to reconnect the 13 acre floodplain through 2 culverts under SR 207.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
Requested08/23/2012Chelan County Natural Resources DepartmentMatch$110,000.00
Requested08/23/2012Recreation and Conservation Office (RCO)Salmon State Projects$621,000.00
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
$1.00 $731,000.00 $0.00 $0.00 $0.00
OTHER FUNDING (Funding that is NOT in a grant project agreement)
TypeDateFunding OrgFunding ProgramMatchAmount
Other Funding Totals Proposed Requested Allocated Spent Balance
Grand Totals Proposed Requested Allocated Spent Balance
PRIMARY SPONSOR
PROJECT CONTACT
PROJECT MANAGER
PHOTOS

 
LOCATION
Chinook-Pop (ESU):Chinook-Upper Columbia River Spring, Wenatchee River, Endangered
Chinook2-Pop (ESU):Chinook-Upper Columbia River Summer/Fall, Not Warranted
County:Chelan
HUC12:Lower Nason Creek (170200110203)
HUC8:Wenatchee (17020011)
Lead Entity Area:Upper Columbia
Legislative District:12
Salmon Recovery Regions:Upper Columbia River
Sections:09
Steelhead-Pop (ESU):Steelhead-Upper Columbia River, Wenatchee River, Threatened
Township:T26NR17E
Upper Columbia Assesment Unit:Lower Nason Creek
Watershed Administrative Unit:Lower Nason
WRIA:Wenatchee
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