PROPOSED DISCHARGE OF DREDGED OR FILL MATERIAL TO THE LEWIS RIVER AND ADJACENT WETLANDS

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

PROPOSED DISCHARGE OF DREDGED OR FILL MATERIAL TO THE LEWIS RIVER AND ADJACENT WETLANDS

The Wyoming Department of Environmental Quality (WDEQ) has received a request from the Western Federal Lands Highway Division (WFLHD) for State certification of U.S. Army Corps of Engineers Nationwide Permit #14, for discharge of dredged or fill material to the Lewis River and adjacent wetlands within Yellowstone National Park, Wyoming. This segment of the Lewis River is designated Class 1. Point source discharges to Class 1 waters 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 replacement of the U.S. Highway 89/287 bridge over the Lewis River. A total of 931 cubic yards (CY) of borrow material, 275 CY of rip-rap and 50 CY of concrete will be used to construct the new bridge, abutments and support piles. Approximately 0.24 acre of adjacent wetland will be permanently impacted by this project.

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 June 18, 2019 to be considered. Phone or email comments will not be accepted.