Middle Green River Side Channel Restoration at RM 60, MG-1
#09-MG-001 #09-MG-001
 Middle Green River Tier 1 Middle Green River Off-Channel Reconnection and Riparian Tier 2 Middle Green River Side Channel Restoration at RM 60, MG-1
Organization Green/Duwamish and Central Puget Sound Watershed (WRIA 9) Lead Entity
Sponsor
Status Proposed
Schedule Start Date: 1/1/2010 End Date: 1/1/2015
Category Category: Acquisition & Restoration
DESCRIPTION
This project has two goals: 1) Restore natural ecosystem processes and sediment supply and transport to side channels (and the mainstem) at two locations, and 2) Restore natural ecosystem processes of large woody debris recruitment, transport, and structure in the side channels (and mainstem) in the vicinity of RM 60.

This project would construct pool/riffle habitat sequences within the designated side channels to increase channel complexity, create salmon spawning habitat, and enhance rearing habitat for juvenile salmonids. Lateral and bar apex jams would be constructed.

Additional components of this project include:
*Underplanting the riparian corridor with native confirs;
*Constructing a large logjam at the head of one of the sidechannels;
*Altering flow regulation at Howard Hanson Dam to provide suitable flows in side channels during the salmon spawning and incubation seasons:
*Constructing supply bars of spawining-sized gravel at the upstream ends of side channels; and
*Additions of large woody debris to be trasported to and within side channels by existing river hydraulics until confier underplantings mature and provide a source of naturally recruited large woody debris.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
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OTHER FUNDING (Funding that is NOT in a grant project agreement)
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Other Funding Totals Proposed Requested Allocated Spent Balance
Grand Totals Proposed Requested Allocated Spent Balance
PHOTOS

 
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