US Army Corps of Engineers
Omaha District

Montana Regulatory Offices

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Post Office Box 2256
Billings, Montana 59103
Ph: 406-657-5910
Fax: 406-657-5911

10 West 15th Street, Suite 2200
Helena, Montana 59626
Ph: 406-441-1375
Fax: 406-441-1380

1600 North Ave. West, Suite 105
Missoula, Montana 59801
Ph: 406-541-4845
Fax: 406-541-4849

Public Notices

  • Special Public Notice for Federal Register Notice

    On January 6, 2017, the U.S. Army Corps of Engineers (Corps) published the notice in the Federal Register announcing the reissuance of all existing nationwide permits (NWPs), general conditions, and definitions with some modifications. The NWPs became effective on March 19, 2017, and will expire on March 18, 2022.

  • NWO-1997-90901-MTB

    Expiration date: 9/10/2019

    Sheffield Ranch Bank Stabilization along the Yellowstone River

  • NWO-2011-01760-MTH-2

    Expiration date: 8/21/2019

    The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating a request by Montana Aquatic Resources Services (MARS) to add an In-Lieu Fee (ILF) compensatory mitigation site to the Program’s Instrument, established in January 2013. The Proposed Site Plan (Plan) is the first phase of mitigation site evaluation and is intended to determine whether the site has enough potential to warrant development of a Draft Mitigation Site plan with significantly more detail. This notice is to inform interested parties of the proposed activity and to solicit comments. The proposed mitigation site would cover the Flathead (#4) Watershed.