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200205400 - Protect & Restore Asotin Creek Watershed

Sponsor: Nez Perce Tribe DFRM Watershed Division

Budgets: FY07: $392,575 | FY08: $399,703 | FY09: $376,783

Short description: Continuation and enhancement of cooperative project to protect and restore critical riparian/stream habitat in the Asotin Creek Subbasin thru road decommissioning, streambank stabilization and fish passage restoration.

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Final Council recommendation (Nov 2006)

Funding category: Expense

Recommended budgets: FY07: $0 | FY08: $0 | FY09: $0


ISRP final recommendation: Fundable in part (Qualified)


The ISRP recommends the project as fundable with the qualifications that sponsors complete the geomorphic assessment and "classify" the stream (e.g., Montgomery and Buffington) on where it is now and where they want to be. The proposed works of decommissioning roads are probably needed to reduce sediment delivery to the stream system. However, reducing “bedscour” by which it's assumed is meant restoring historical bed levels (?) is unlikely to be assisted by stabilizing streambanks. The creek widens in order to entrain more gravel to its carrying capacity, and restricting this process is likely to increase bed lowering or “incision.” A proper geomorphic assessment seems to be needed to clarify what is needed. It is of concern, but of no great surprise, that the word geomorph... cannot be found by word-searching the Asotin Subbasin Plan. Given these concerns, we recommend that, until a geomorphic assessment is made, streambank stabilization is limited to those areas where the creek is not yet actively eroding its banks. The concern is that this action may exacerbate the problem by causing down-cutting of the streambed (which will undermine any streambank bioengineered works). ISRP comments on proposal 199401805 (and 20020500) apply to this proposal.

Response loop edit

See the sponsor's revised proposal from the response loop. You'll be taken to CBFWA's proposal system in Section 10 where most sponsors uploaded revised narratives or other responses to the ISRP comments.

State/province recommendation: Washington

Review group: Washington list

Recommended budgets: FY07: (n/a) | FY08: (n/a) | FY09: (n/a)

Comment: See Washington guidance