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Green River Tusher Wash Diversion Dam Rehabilitation Project

May 29, 2013
by John Weisheit

Tusher Wash Dam constuction in 1936
Tusher Wash Dam constuction in 1936

Note: This federal process started last year as an Environmental Assessment and has since been elevated to an Environmental Impact Statement.

DRAFT EIS RELEASED (March 2014)

PRESS

PROJECT DESCRIPTION

The Natural Resources and Conservation Service and Utah Division of Agriculture and Food are analyzing alternatives to rehabilitate damage to the Green River diversion dam from the late 2010 and early 2011 flood events. The diversion dam was constructed in the early 1900s and has been modified over the years to maintain the dam. During the 2010/2011 flood events, flows in the Green River caused severe damage to the diversion dam compromising its structural integrity. If the dam fails, water supply to two irrigation canals, a historic irrigation water wheel delivery system, and one hydropower plant would be eliminated.

As part of dam rehabilitation, the Upper Colorado Endangered Fish Recovery Program (Recovery Program) is proposing to fund and install a fish barrier on the west irrigation and hydropower plant canal to prevent Endangered Species Act (ESA) listed fish species from entering the canal and/or hydropower plant. As part of the dam rehabilitation, upstream and downstream fish passage may also be incorporated into the design. These fish protection and passage components are proposed for inclusion in the Green River diversion dam rehabilitation project to help reduce fish mortality and increase ESA listed fish species populations in the Green River.

Currently, the project is analyzing the following design elements listed in order of priority:

    1. Rehabilitate Dam to Protect Irrigation and Hydropower Water Rights
    2. ESA Listed Fish Species Barrier into the Powerhouse and Irrigation Canals
    3. Upstream and Downstream ESA Listed Fish Species Passage over the Dam
    4. Downstream Boat Passage past the Dam (may include an in-stream channel and/or upland portage around the dam)

DRAFT EIS SCOPING

Draft EIS Public Comment Period
Open: Friday, March 14, 2014
Close: Wednesday, April 30, 2014
 
Draft EIS Public Meeting
Date: Thursday, April 10, 2014
Time: 6:00 p.m. - 8:00 p.m. (MST)
Place: John Wesley Powell River History Museum
1765 East Main Street, Green River, UT

SEND COMMENTS TO:

Greg Allington  McMillen, LLC
1401 Shoreline Dr.
Boise, ID 83702
Phone: 208-342-4214
Fax: 208-342-4216
greenriver@mcmillen-llc.com

###


Official Web Page

Document archive for the initial phase of the Enviromental Assessment period in 2012

Additional Information


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