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Project Summary

Project 2007-085-00 - Upa Nason Creek Oxbow
Project Number:
Upa Nason Creek Oxbow
See Contract Summary.
Proponent Orgs:
Chelan County (Govt - Local)
Starting FY:
Ending FY:
Province Subbasin %
Columbia Cascade Wenatchee 100.00%
Focal Species:
Species Benefit:
Anadromous: 100.0%   Resident: 0.0%   Wildlife: 0.0%
BiOp Association:

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Summary of Budgets

To view all expenditures for all fiscal years, click "Project Exp. by FY"

To see more detailed project budget information, please visit the "Project Budget" page

No Decided Budget Transfers

Pending Budget Decision?  No

Actual Project Cost Share

Current Fiscal Year — 2024
Cost Share Partner Total Proposed Contribution Total Confirmed Contribution
There are no project cost share contributions to show.
Previous Fiscal Years
Fiscal Year Total Contributions % of Budget

No Current Contracts

Annual Progress Reports
Expected (since FY2004):0
On time:0
Status Reports
On time:0
Avg Days Late:None

The table content is updated frequently and thus contains more recent information than what was in the original proposal reviewed by ISRP and Council.

Review: FY07-09 Solicitation Review

Council Recommendation

Assessment Number: 2007-085-00-NPCC-20090924
Project: 2007-085-00 - Upa Nason Creek Oxbow
Review: FY07-09 Solicitation Review
Approved Date: 10/23/2006
Recommendation: Fund
Comments: ISRP fundable qualified: sponsor should consider the ISRP comments. $580,000 of the total project budget ($1.23M) to be funded from another source.

Independent Scientific Review Panel Assessment

Assessment Number: 2007-085-00-ISRP-20060831
Project: 2007-085-00 - Upa Nason Creek Oxbow
Review: FY07-09 Solicitation Review
Completed Date: 8/31/2006
Final Round ISRP Date: None
Final Round ISRP Rating: Meets Scientific Review Criteria (Qualified)
Final Round ISRP Comment:
The ISRP is not requesting a response, but the proposal would be improved by addressing the following comments:

This project would reconnect a 0.6 mile-long oxbow that was created when state route 507 bisected Nason Creek. The proposal does a good job of describing the history of habitat alteration in Nason Creek, especially along its lower reaches. Using two long arch culverts, one at the inlet and one at the outlet of the oxbow, the site would become a large, slow flowing side-channel of the mainstream that would be connected at nearly all flows. Details of the reconnection project and the hydrological surveys were exceptionally well described. EDT analysis indicated that reconnecting this oxbow would increase Chinook productivity in the entire watershed by 25-50%.

The technical background section described two alternatives for restoring this site, neither of which was preferred. Including this information was peripheral to the overall proposal and was not particularly helpful. Additionally, the background section did not provide any estimates of the number of Chinook or steelhead currently spawning in Nason Creek, or an estimate of the additional number of adults that might result from this restoration project, which could have been done using EDT.

The proposal includes only plans for implementation modeling, but not effectiveness monitoring. This is unfortunate, because the restoration design is such that estimates of fish coming in and fish going out of either end of the oxbow could be obtained with appropriate traps, and PIT-tagging can be used to estimate downstream survival. This site would provide an excellent place to test the EDT model prediction of a 25-50% increase in Chinook smolt yield.

Overall, the ISRP was impressed with this proposal.
Documentation Links:

Legal Assessment (In-Lieu)

Assessment Number: 2007-085-00-INLIEU-20090521
Project Number: 2007-085-00
Review: FY07-09 Solicitation Review
Completed Date: 10/6/2006
In Lieu Rating: No Problems Exist
Cost Share Rating: None
Comment: Install arch culverts for oxbow reconnection, mixed private/federal land, assume no entity required to do so.

Capital Assessment

Assessment Number: 2007-085-00-CAPITAL-20090618
Project Number: 2007-085-00
Review: FY07-09 Solicitation Review
Completed Date: 2/27/2007
Capital Rating: Does Not Qualify for Capital Funding
Capital Asset Category: None
Comment: None

Project Relationships: This project Merged To 2007-400-00 effective on 1/23/2008
Relationship Description: All work & budgets from projects 2007-042-00/Wenatchee Passage; 2007-085-00/Nason Creek Oxbow; and 2007-283-00/Wenatchee Access are combined into 2007-400-00. Original decision (4/26/07) was EXPENSE, combined they fit BPA's CAPITAL criteria. This decision made based on low capital projections.

Name Role Organization
Cecilia Brown (Inactive) Project Manager Bonneville Power Administration
Carolyn Pearson (Inactive) Project Lead EcoA.I.M., Inc.