Montana Regulatory Offices

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 Billings Office

Box 7032
Billings, Montana 59103
Ph: 406-657-5910
Fax: 406-657-5911

 Helena Office

100 Neill Avenue
Helena, Montana 59601-3329
Ph: 406-441-1375
Fax: 406-441-1380

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

Public Notices

  • NWO-2018-00230-MT

    Expiration date: 3/6/2024

    The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating a request to develop a compensatory mitigation site under the Montana Department of Transportation’s (MDT) statewide compensatory mitigation umbrella bank, approved on October 24, 2023. This Proposed Site Plan (Plan) is the first phase of mitigation site evaluation. It is intended to determine whether the site has enough potential to warrant development of a more detailed Draft Mitigation Site Plan. The proposed mitigation site would cover stream and wetland impacts permitted under Section 404 of the Clean Water Act for MDT projects within Watershed #3 – Lower Clark Fork River Basin (WS 3).

  • NWO-2023-01548-MT

    Expiration date: 3/6/2024

    The U.S. Army Corps of Engineers, Omaha District, (USACE) is evaluating a permit application NWO-2023-01548, which would result in permanent and temporary impacts to approximately 1,074 linear feet of non-wetland waters and approximately 1.15 acre of wetlands adjacent to Middle Creek Ditch, waters of the United States. This notice is to inform interested parties of the proposed activity and to solicit comments.

  • NWO-2011-01760-MT

    Expiration date: 1/26/2024

    The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating a request by Montana Freshwater Partners (MFP) 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 purpose of the proposed Viking Creek Wetland and Stream Restoration Project is to restore and enhance the North and South Forks of Viking Creek and associated wetlands near Whitefish, MT (48.427212, -114.333503), to offset impacts to wetlands and streams in the Flathead Watershed (#4). The proposed project will offset lost stream and wetland functions and services that occurred as a result of permits issued in 2021, 2022, and 2023.