Snohomish R Confluence Reach Restoration
#07-MPR-222 #07-MPR-222
Organization Snohomish Basin Lead Entity
Sponsor Snohomish County
Status Completed
Schedule Start Date: 1/1/2004 End Date: 11/12/2009
Category Category: Restoration
Project Photo
DESCRIPTION
Snohomish County used this funding for a reach scale restoration effort, on three miles of the Snohomish River, downstream from the confluence of the Skykomish and Snoqualmie rivers. . Recognizing the importance of this area to Chinook salmon and other salmonids for spawning, rearing holding and migration, the Snohomish Basin Salmon Recovery forum identified it as a "focus area" in the Near Term Action Agenda (SBSRF, 2002). The project used a phased approach, with activities at three different project sites, 1) Bob Heirmann Wildlife Park, 2) Twin Rivers Park and 3) Crabb Bend. We pursued the following activities: • Planting with 12-15 ft. tall trees and cottonwood posts. • Placement of LWD • Construction of LWD complexes • Reconnection of side channel • Final design of dike breaches The dike breach design work, placement of LWD, riprap removal, and side channel reconnection work is based on an analysis of the reach conducted by Snohomish County and included 2-D modeling of the reach. During and following construction activities, two dikes in the area were analyzed for the position and magnitude of possible dike breaches. As luck would have it, during the November 2006 flood event on the Snohomish, one Dike breached in the location where the hydraulic model had predicted the maximum amount of sheer stress. Funding has since been secured to complete the dike breaching, which will eventually return much of the area to fully functioning riverine condition. During the latter part of construction of the Twin Rivers side channel, an opportunity arose to assist with the installation of a substantial flood fence on the Skykomish River at Groeneveld Slough. Approximately 980 cottonwood boles were placed, and during the many high water events since that time, they have successfully withstood removal and have racked up a great deal of woody material, as designed
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
RequestedSnohomish CountyMatch$103,500.00
RequestedRecreation and Conservation Office (RCO)Salmon State Projects$586,500.00
Allocated11/06/2009Snohomish CountyMatch$122,912.66
Allocated11/06/2009Recreation and Conservation Office (RCO)Salmon Federal Projects$493,660.08
Spent11/06/2009Snohomish CountyMatch-$122,912.66
Spent11/06/2009Recreation and Conservation Office (RCO)Salmon Federal Projects-$493,660.08
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
$616,573.00 $690,000.00 $616,572.74 $616,572.74 $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
ALT PROJECT CONTACT
PROJECT MANAGER
PHOTOS

 
LOCATION
Chinook-Pop (ESU):Chinook-Puget Sound, Sammamish River, Threatened
Chinook-Pop (ESU):Chinook-Puget Sound, Skykomish River, Threatened
Chinook-Pop (ESU):Chinook-Puget Sound, Snoqualmie River, Threatened
Chum-Pop (ESU):Chum-Puget Sound/Strait of Georgia, Not Warranted
City Areas:Cathcart
City Areas:High Bridge
City Areas:Maltby
City Areas:Monroe
City Areas:Monroe North
Coho-Pop (ESU):Coho-Puget Sound/Strait of Georgia, Species of Concern
County:Snohomish
HUC12:Bear Creek (171100120301)
HUC12:Elwell Creek-Skykomish River (171100090702)
HUC12:Evans Creek-Snohomish River (171100110202)
HUC12:French Creek (171100110201)
HUC12:Peoples Creek-Snoqualmie River (171100100603)
HUC12:Snohomish River-Frontal Possession Sound (171100110203)
HUC8:Lake Washington (17110012)
HUC8:Skykomish (17110009)
HUC8:Snohomish (17110011)
HUC8:Snoqualmie (17110010)
Lead Entity Area:Snohomish Basin
Legislative District:01
Legislative District:12
Legislative District:44
Pink-Pop (ESU):Pink-Odd Year, Not Warranted
Pink2-Pop (ESU):Pink-Even Year, Not Warranted
Puget Sound Action Areas:Whidbey Island
Salmon Recovery Regions:Puget Sound
Sections:01
Sections:02
Sections:03
Sections:04
Sections:05
Sections:06
Sections:07
Sections:08
Sections:09
Sections:10
Sections:11
Sections:12
Sections:13
Sections:14
Sections:15
Sections:16
Sections:17
Sections:18
Sections:19
Sections:20
Sections:21
Sections:22
Sections:23
Sections:24
Sections:31
Sections:32
Sections:33
Sections:34
Sections:35
Sections:36
Snohomish Strategy Group:Mainstem-primary restoration
Snohomish Strategy Group:Mainstem-secondary restoration
Snohomish Strategy Group:Rural streams-secondary restoration
Snohomish Subbasins:Cathcart Drainages
Snohomish Subbasins:French Creek
Snohomish Subbasins:Lower Mainstem Skykomish
Snohomish Subbasins:Marshland
Snohomish Subbasins:Snoqualmie Mouth
Steelhead-Pop (ESU):Steelhead-Puget Sound, North Lake Washington and Lake Sammamish, Threatened
Steelhead-Pop (ESU):Steelhead-Puget Sound, Snohomish/Skykomish Rivers, Threatened
Steelhead-Pop (ESU):Steelhead-Puget Sound, Snoqualmie River, Threatened
Township:T27NR05E
Township:T27NR06E
Township:T28NR05E
Township:T28NR06E
Watershed Administrative Unit:Everett
Watershed Administrative Unit:Lower Snoqualmie River/Cherry Creek
Watershed Administrative Unit:Youngs Creek
WRIA:Snohomish
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  APPLICATION FINAL 
RESTORATION METRICS
Miles of Stream and/or Shoreline Treated or Protected (C.0.b)
0.10mi1.60mi
Instream Habitat Project    
Total Miles Of Instream Habitat Treated (C.4.b)
0.05mi
 Channel reconfiguration and connectivity (C.4.c.1)    
Acres Of Channel/Off-Channel Connected Or Added (C.4.c.5)
2.50acres
Instream Pools Created/Added (C.4.c.6)
0.00
Miles of Off-Channel Stream Created or Connected (C.4.c.4)
0.05mi
Miles of Stream Treated for channel reconfiguration and connectivity (C.4.c.3)
0.05mi
 Channel structure placement (C.4.d.1)    
Acres Of Streambed Treated for channel structure placement (C.4.d.4)
0.50acres
Miles of Stream Treated for channel structure placement (C.4.d.3)
0.23mi
Number of structures placed in channel (C.4.d.7)
2.00
Pools Created through channel structure placement (C.4.d.5)
1.00
Yards Of Average Stream-Width At Mid-Point Of Worksite (C.4.d.6)
7.00yd
Riparian Habitat Project    
*Total Riparian Acres Treated (C.5.b.2)
0.00acres35.00acres
*Total Riparian Miles Streambank Treated (C.5.b.1)
0.00mi1.65mi
 Planting (C.5.c.1)    
Acres Planted in riparian (C.5.c.3)
41.90acres
 Riparian Plant removal / control (C.5.h.1)    
Acres of riparian treated for plant removal/control (C.5.h.3)
80.00acres35.00acres
ADDITIONAL INFORMATION