Dillwater LWD Enhancement
#10-1843 #10-1843
 Entiat Sub-basin Middle Entiat Dillwater LWD Enhancement
Organization Upper Columbia Salmon Recovery Board Lead Entity
Sponsor Chelan County Natural Resources Department
Status Completed
Schedule Start Date: 6/1/2010 End Date: 10/31/2012
Priority 1
Category Category: Restoration
Project Photo
DESCRIPTION
The Dillwater LWD Enhancement project, located between River Mile 21.2 and 21.4 on the Entiat River, was constructed to improve habitat complexity by construction of 4 Engineered Log Jams (ELJs) in the main channel and along the banks and one in the side channel. This project is located in the "Stillwater Reach" which will be intensively monitored for fish response to restoration activities by the ISEMP Program. The upper sub-basin is considered a Category 1 Watershed and is also a critical spawning area for Federally Endangered spring Chinook, Threatened Upper Columbia River steelhead, and Threatened bull trout. This project has direct benefits to a 1/3-mile reach on the mainstem, improve habitat conditions in a 1,100 ft side-channel, and affect approximately 13 acres of connected riparian floodplain. This project also included 1.5 acres of riparian plantings with various native species. The USBR Preston Reach Assessment recommends the addition of large woody debris in this reach as a habitat improvement action and the REI indicates an "at risk" condition for this habitat element. The Dillwater ELJ structures are intended to create habitat by adding stream channel complexity elements, particularly for juvenile fishes, and to afford high-flow refugia. In addition, they would be effective at sediment storage which is needed to reduce lateral stream channel instability. USFWS data shows that a high local sediment supply (from upstream bank erosion), coupled with high width-to-depth ratios, has resulted in an enlarging channel and instability is exaserbated by limited riparian vegetation upstream.
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FUNDING
Proposed Cost $347,500
Requested Funds $0
Allocated Funds $159,385
Spent Funds $0
Balance $159,385
FUNDING SOURCE
Salmon Recovery Funding Board$159,385
FUNDING SOURCES
PROJECT CONTACT
LAND OWNER
PROJECT MANAGER
SPONSOR
PHOTOS

 
LOCATION
Sections:11
Legislative District:12
County:Chelan
Chinook-Pop (ESU):Chinook-Upper Columbia River Spring, Entiat River, Endangered
Chinook2-Pop (ESU):Chinook-Upper Columbia River Summer/Fall, Not Warranted
WRIA:Entiat
HUC12:Preston Creek-Entiat River (170200100205)
Steelhead-Pop (ESU):Steelhead-Upper Columbia River, Entiat River, Threatened
Township:T27NR19E
Lead Entity Area:Upper Columbia
Salmon Recovery Regions:Upper Columbia River
HUC8:Upper Columbia-Entiat (17020010)
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ACTIVITY-INSTREAM HABITAT PROJECT PCSRF
Number of structures placed in channel
100%
5 Actual
5 Planned
Number
Total Miles Of Instream Habitat Treated
100%
0.3 Actual
0.3 Planned
Miles
ACTIVITY-RIPARIAN HABITAT PROJECT PCSRF
* Total Riparian Acres Treated
100%
1.5 Actual
1.5 Planned
Acres
* Total Riparian Miles Streambank Treated
100%
0.3 Actual
0.3 Planned
Miles
Acres Planted in riparian
100%
1.5 Actual
1.5 Planned
Acres
ADDITIONAL INFORMATION