Lower Dungeness Floodplain Restoration
#16-1372 #16-1372
Organization North Olympic Peninsula Lead Entity for Salmon
Sponsor Clallam County Community Development
Status Completed
Schedule Start Date: 1/19/2018 End Date: 5/14/2025
Category Category: Restoration
Project Photo
DESCRIPTION
This large-scale restoration project restored approximately 112 acres of Lower Dungeness River floodplain by setting back the Army Corps of Engineers east bank levee (R.M. 1-2.7) and relocating a road that bisected the floodplain. Floodplain restoration in this reach provided floodplain and side channel habitat critically needed by salmon for spawning, rearing and migration. By reconnecting the Dungeness River with its historic floodplain, habitat conditions were improved and riverine processes restored. Priority species supported by these habitats are ESA - listed Puget Sound Chinook, Eastern Strait of Juan de Fuca Summer Chum, Coastal-Puget Sound Bull Trout, and Puget Sound Steelhead. The river and floodplain reconnected almost immediately following construction of the setback levee and flood return channel. The flood return channel developed habitat features and now functions as an established side channel. Wetland and floodplain features are becoming established throughout the site. Salmon have been observed migrating through channels in the restored floodplain and salmon spawning has been observed at the margins between the river and the restored floodplain. Native vegetation establishment and weed control were key to the project's success. Accessible areas of the floodplain were planted with native vegetation. Weeds were monitored and treated as noted in the annual weed management plan. Some areas originally intended to be planted with native vegetation became inundated or were colonized by the seeds of abundant local native plants. Planting plans were adjusted accordingly. Monitoring stations were established to assess the growth of native vegetation.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
Requested08/12/2016Clallam County Community DevelopmentMatch$500,000.00
Requested08/12/2016Recreation and Conservation Office (RCO)PSAR Large Capital Projects$3,000,000.00
Allocated10/24/2022Recreation and Conservation Office (RCO)Puget Sound Acq. & Restoration$100,000.00
Allocated10/24/2022Clallam County Community DevelopmentMatch$1,561,212.00
Allocated10/24/2022Recreation and Conservation Office (RCO)PSAR Large Capital Projects$8,746,868.00
Spent11/02/2022Recreation and Conservation Office (RCO)Puget Sound Acq. & Restoration-$100,000.00
Spent05/14/2025Clallam County Community DevelopmentMatch-$1,561,212.00
Spent05/14/2025Recreation and Conservation Office (RCO)PSAR Large Capital Projects-$8,746,868.00
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
$3,500,000.00 $3,500,000.00 $10,408,080.00 $10,408,080.00 $0.00
OTHER FUNDING (Funding that is NOT in a grant project agreement)
TypeDateFunding OrgFunding ProgramMatchAmount
Spent04/22/2025USWSNational Coastal Wetlands Conservation-$980,000.00
Other Funding Totals Proposed Requested Allocated Spent Balance
$0.00 $0.00 $0.00 $980,000.00 -$980,000.00
Grand Totals Proposed Requested Allocated Spent Balance
$3,500,000.00 $3,500,000.00 $10,408,080.00 $11,388,080.00 -$980,000.00
PRIMARY SPONSOR
PROJECT CONTACT
PROJECT MANAGER
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LOCATION
Chinook-Pop (ESU):Chinook-Puget Sound, Dungeness River, Threatened
Chum-Pop (ESU):Chum-Hood Canal, Strait of Juan de Fuca, Threatened
Coho-Pop (ESU):Coho-Puget Sound/Strait of Georgia, Species of Concern
County:Clallam
HUC12:Lower Dungeness River (171100200307)
HUC8:Dungeness-Elwha (17110020)
Lead Entity Area:North Olympic Peninsula
Legislative District:24
Pink-Pop (ESU):Pink-Odd Year, Not Warranted
Puget Sound Action Areas:Strait of Juan de Fuca
Salmon Recovery Regions:Hood Canal
Sections:43
Steelhead-Pop (ESU):Steelhead-Puget Sound, Dungeness River, Threatened
Township:T31NR04W
Watershed Administrative Unit:Dungeness Valley
WRIA:Elwha - Dungeness
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  APPLICATION FINAL 
RESTORATION METRICS
Miles of Stream and/or Shoreline Treated or Protected (C.0.b)
0.80mi0.80mi
Instream Habitat Project    
Total Miles Of Instream Habitat Treated (C.4.b)
0.80mi0.80mi
 Channel reconfiguration and connectivity (C.4.c.1)    
Acres Of Channel/Off-Channel Connected Or Added (C.4.c.5)
112.00acres112.00acres
Instream Pools Created/Added (C.4.c.6)
1.001.00
Miles of Off-Channel Stream Created or Connected (C.4.c.4)
0.25mi0.50mi
Miles of Stream Treated for channel reconfiguration and connectivity (C.4.c.3)
0.80mi0.80mi
Riparian Habitat Project    
*Total Riparian Acres Treated (C.5.b.2)
112.00acres112.00acres
*Total Riparian Miles Streambank Treated (C.5.b.1)
0.80mi0.80mi
 Planting (C.5.c.1)    
Acres Planted in riparian (C.5.c.3)
40.00acres10.00acres
Miles of streambank planted (C.5.c.4)
0.80mi0.80mi
 Riparian Plant removal / control (C.5.h.1)    
Acres of riparian treated for plant removal/control (C.5.h.3)
112.00acres112.00acres
Miles of streambank treated for plant removal/control (C.5.h.4)
0.80mi0.80mi
ADDITIONAL INFORMATION