BEFORE YOU BEGIN
If you are planning work in, over, under, or along a stream, you must obtain the appropriate permits before starting your project.

The most common permit for stream-related private projects is the 310 Joint Application Form, which helps protect Montana’s rivers and streams from erosion, sedimentation, and other impacts.

Before beginning your application, take a moment to understand the permitting process and determine what may apply to your project.

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1. Project Design and River Protection

Your project must be designed to minimize impacts such as sedimentation and erosion during and after construction. The project should preserve and protect the river or stream, maintaining it in as natural a condition as possible. Contact relevant agencies to determine if specific criteria apply. Visit the "How to Apply" page for a comprehensive list of permits and agencies.

2. Recommendation on Purchasing Materials

It is recommended not to purchase materials for project construction until all permits are issued, as the size and type of materials may be modified during the permitting process.

3. Importance of Vegetation for Stream Stability

Vegetation is crucial for the stability and health of the stream. Vegetation removal must be minimized, and bare ground must be replanted. Weeds must be controlled in the area until the vegetation is established.

4. Prevention of Aquatic Invasive Species

Use clean equipment to prevent the spread of aquatic invasive species. Ensure your equipment is free of weeds, weed seeds, and excess grease before using it in a waterway. Clean mud and aquatic plants from heavy machinery or other equipment before moving between waters and work sites. Drain water from machinery and let it dry before moving to another location. To learn more about aquatic invasive species in Montana, visit: https://fwp.mt.gov/conservation/aquatic-invasive-species/about