310 permits in Musselshell County, Montana

Planning work in or near a stream in Musselshell County? A culvert, a bridge, bank work, a ford, riprap, or clearing the channel all need a 310 permit from the local conservation district before you start. Here is who to call.

What to expect

• Call first. Describe the project before you plan it in detail. The district will tell you whether it needs a permit and send you the application, which is Montana's Joint Application for work in streams.
• Cost. DNRC's Joint Application instructions list the 310 permit as no fee, and districts such as Gallatin say it is free. DNRC also says a fee may apply in some places, so ask.
• Timing. A review team makes recommendations, and the district board has 60 days from accepting your application to approve, modify or deny it. Apply well ahead of when you want a machine in the water.
• Other permits. Some stream work also needs federal or other state permits. The district can tell you, and our 310 permit guide explains which, and what skipping a permit costs.

When the board meets: 3rd Thursday, 7:30 pm, USDA Service Center Roundup. 310 applications are decided by the district board, so ask when the next meeting is and how far ahead they need your application.

Sources, checked October 30, 2026: Montana DNRC and Montana Association of Conservation Districts, Conservation District Directory; DNRC conservation district and county boundary maps; DNRC Stream Permitting; Joint Application instructions; district websites where available. Contact details change; if a number is wrong, the DNRC Conservation Districts Bureau is at (406) 444-6667.