Mahogany Creek Culvert Replacement Project Annual Monitoring Report

Identification Information

Citation

Originator: Nez-Perce Tribe

Publish Date: June 9, 2008

Online Link: None

BPA Project #:

Contact Information

Agency: Nez Perce Tribe

Name: Richard Christian

Job Position: Project Area Manager

Telephone: (541) 426-3198 ext 3

E-Mail Address: nezperce.org

Description

Abstract: This annual monitoring report covers activities under the Grande Ronde Model Watershed/Bonneville Power Administration contract No. 27255, entitled Mahogany Creek Culvert Replacement Project. Prior to the completion of this project, the Mahogany culvert was undersized, had an outlet drop of two feet and was considered a barrier to all life history stages of all aquatic species. The primary project objective was to replace the culvert with a 15 feet wide open-bottom arch that allows passage of all life stages of all aquatic species. The stream channel was reconstructed through the newly installed culvert utilizing stream simulation techniques. This project re-opened 3.5 miles of spawning and rearing habitat for Snake River steelhead, and rearing habitat for Chinook and bull trout, upstream of the structure. This project continues to meet project objectives one year post-implementation.

Purpose:

Time Period of Content:

Geographic Extent: Mahogany Creek, Imnaha Subbasin

Status: Final

Use Constraints: Send a note to nezperce.org addressed for richardc

Format: Word Document

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Field attribute information is available in the attached file(s).

Is a physical copy maintained for reference at Headquarters? Unknown