3 Oct 2023

Special Public Notice: Announcement of Availability of the Wyoming Stream Mitigation Tool (WSQT), Version 2.0

The U.S. Army Corps of Engineers (Corps), Omaha District, Wyoming Regulatory Office, announces the availability of the Wyoming Stream Mitigation Tool (WSQT), Version 2.0, which includes the Wyoming Stream Impact Tool (WSIT). The purpose of the WSQT v2 is to calculate functional lift and loss associated with reach- scale stream restoration and impact activities. The tool is a calculator that quantifies change between an existing and future stream condition. A main goal of the WSQT is to produce objective, verifiable, and repeatable results by consolidating well-defined procedures for quantitative measures of structural or compositional attributes of a stream and its underlying processes.

28 Sep 2022

Notice of Availability of the Beta Streamflow Duration Assessment Method for the Great Plains

Expiration date: 9/28/2023

The U.S. Army Corps of Engineers (Corps) Albuquerque, Chicago, Detroit, Fort Worth, Galveston, Kansas City, Omaha, Rock Island, St. Louis, St. Paul, and Tulsa Districts, and the U.S. Environmental Protection Agency (EPA), Regions 5, 6, 7, and 8, jointly announce the availability of the Beta Streamflow Duration Assessment Method (SDAM) for the Great Plains (dated September 2022). The method is a rapid assessment tool to help distinguish between ephemeral, intermittent, and perennial streamflow at the reach scale for the Northern and Southern Great Plains SDAM Regions. The beta SDAM may help provide technical guidance for identifying waters that may be subject to regulatory jurisdiction under Section 404 of the Clean Water Act; however, this method does not alter or change the definition of “Waters of the U.S.”

27 Jun 2022

Special Public Notice for EMERGENCY PROCEDURES FOR PERMITTING IN MONTANA AND WYOMING FOR JUNE 2022 FLOODS

Expiration date: 7/27/2022

The U.S. Army Corps of Engineers, Omaha District, (Corps) is issuing this public notice to inform members of the public of Section 404 of the Clean Water Act (Section 404) and Section 10 of the Rivers and Harbors Act of 1899 (Section 10). The Corps administers the permitting process for activities in waters of the United States and when activities occur over, in, or under a Section 10 water. This public notice explains when the Corps has jurisdiction over work or activities, what types of Department of Army (DA) permits are available, and how to apply for those permits. Specific emphasis is on emergencies and the permitting process for emergency activities in Montana and Wyoming. An “emergency” is a situation which would result in an unacceptable hazard to life, a significant loss of property, or an immediate, unforeseen, and significant economic hardship if corrective action requiring a permit is not undertaken within a time period less than the normal time needed to process the application under standard procedures. See 33 CFR 325.2(e)(4).