PROPOSED DISCHARGE OF DREDGED OR FILL MATERIAL TO THE GROS VENTRE RIVER

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

PROPOSED DISCHARGE OF DREDGED OR FILL MATERIAL TO THE GROS VENTRE RIVER

The Wyoming Department of Environmental Quality (WDEQ) has received a request from the National Park Service for State certification of U.S. Army Corps of Engineers (USACE) Nationwide Permit #13, for discharge of dredged or fill material to the Gros Ventre River in Grand Teton National Park near Kelly, Wyoming. The purpose of this project is to undertake bank stabilization activities near the Gros Ventre Road. This segment of the Gros Ventre River is designated a Class 1 water where point source discharges are prohibited except for storm water and construction related discharges. This certification will require meeting the provisions in Chapter 1, Section 7(b) of the WDEQ Water Quality Rules and Regulations, which allows these discharges under certain circumstances. Proposed activities include redistribution of approximately 200 CY of alluvium to form a temporary cofferdam. Geotextile fabric would be placed along 500 feet of bank along the existing alignment and covered with approximately 1,800 CY of rock to form a revetment anchored in a 4-foot trench excavated along the toe. Three stream barbs would be incorporated using 720 CY of rock to direct flow away from the bank. Excess dredged material would be spread along the revetment base. 

Requests for information about the proposed water quality certification should be directed to Eric Hargett by email (eric.hargett@wyo.gov) or phone (307-777-6701). Comments must be addressed to Eric Hargett, Wyoming DEQ/WQD, 200 W. 17th Street – 4TH floor, Cheyenne, WY, 82002, and be postmarked on or before 5:00 p.m. on September 26, 2017 to be considered.  Phone or email comments will not be accepted.