Additional Stream Permits
Your project may require permits in addition to the 310 Permit. The Joint Application is formatted to be sent to multiple permit agencies at one time. It is the applicant’s responsibility to acquire all necessary permits for their project.
Reach out to district staff if you need assistance assessing additional permit requirements for your project. We will help connect you with the correct permitting agencies.
Other types of common permits to know about:
-
This permit is required for anyone planning new construction within a designated 100-year floodplain. Check with your local planning office to determine whether a 100-year floodplain has been designated for the stream of interest.
Projects that have the potential to alter the mapped 100-year flood elevation may require extensive hydraulic analysis and permit reviewIssuing Agency - County Planning Office
-
This permit is required by any person, agency, or entity, either public or private, proposing a project that will result in the discharge or placement of dredged or fill material into waters of the United States. Waters of the United States includes lakes, rivers, streams (including intermittent), wetlands, and other aquatic sites. Stream and wetland work may require mitigation of impacts, including the Montana Stream Mitigation Procedure (MSMP).
Issuing Agency - U.S. Army Corps of Engineers
-
This permit is required for any person, agency, or entity, either public and private, initiating a short-term activity that may cause unavoidable short-term violations of state surface water quality standards. The major application of this law is related to sediments and turbidity caused by construction or other activities.
Issuing Agency - MT Department of Environmental Quality
-
This permit is required by any state, county, or municipal agency, and the U.S. Bureau of Land Management and U.S. Forest Service, that proposes a project requiring alteration of the bed or banks of any stream, perennial or otherwise.
Issuing Agency - Montana Fish, Wildlife, and Parks
-
This permit is required for any landowner or operator conducting forest practices that will access, harvest, or regenerate trees on a defined land area for commercial purposes on private, state, or federal lands.
Issuing Agency - Montana Department of Natural Resource Conservation
-
This permit is required for any person, agency, or entity proposing construction, industrial, or mining activity that will discharge stormwater to Montana waters and construction that will disturb more than one acre within 100 feet of streams, rivers, or lakes. Construction dewatering is also covered by MPDES permitting.
Issuing Agency - Montana Department of Environmental Quality

