US Army Corps of Engineers
Omaha District Website

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

  • Omaha District Special Public Notice for Final Federal Register Publication

    On January 13, 2021, the U.S. Army Corps of Engineers (Corps) published a final rule in the Federal Register (86 FR 2744) announcing the reissuance of 12 existing nationwide permits (NWPs) and four new NWPs, as well as the reissuance of NWP general conditions and definitions with some modifications. These 16 NWPs will go into effect on March 15, 2021, and will expire on March 14, 2026.

  • NWO-2020-01989-MTH

    Expiration date: 1/18/2021

    The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating a permit application from the Montana Department of Transportation for the reconstruction of 4.8 miles of US 89. The project begins at RP 20.7 which is 0.3 mile south of South Milk River Bridge extending to RP 25.5 over the Hudson Bay Divide. Project work includes a complete replacement of the South Milk River Bridge, and replacement of several culverts. Throughout most of the project, the roadway will be widened to include 12-ft driving lanes and 6-ft shoulders which would result in permanent and temporary impacts to approximately 505 linear feet of the South Branch of the South Fork of the Milk River, the overflow channel of the South Branch of the South Fork Milk River, the Middle Branch of the South Fork of the Milk River, the North Branch of the South Fork of the Milk River, and approximately 4.51 acre of adjacent wetlands.

  • Special Public Notice for the Proposed Nationwide Permit Reissuance and Request for Comments

    Expiration date: 11/16/2020

    On September 15, 2020, the U.S. Army Corps of Engineers published in the Federal Register its proposal to reissue the 52 existing nationwide permits (NWPs) and issue five new NWPs. Nationwide permits are general permits issued on a nationwide basis to streamline the authorization of activities that result in no more than minimal individual and cumulative adverse environmental effects. Many of the proposed NWPs require notification to the district engineer before commencing those activities, to ensure that the activities authorized by those NWPs cause no more than minimal individual and cumulative adverse environmental effects.