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Image of three different buffers

Minnesota Buffer Law

Minnesota's buffer law establishes new perennial vegetation buffers of up to 50 feet along lakes, rivers, and streams and buffers of 16.5 feet along ditches. These buffers will help filter out phosphorus, nitrogen and sediment. The deadline for implementation for buffers on public waters is November 1, 2017. The deadline for public ditches is November 1, 2018. The law provides flexibility for landowners to install alternative practices with equivalent water quality benefits that are based on the Natural Resources Conservation Service Field Office Technical Guide.

The Board of Water and Soil Resources (BWSR) reports that statewide 89% of parcels adjacent to Minnesota waters meet preliminary compliance with the law.  Soil Water Conservation Districts (SWCDs) are reporting encouraging progress in their work with landowners around the state. View the buffer maps for a visual representation of the Minnesota Buffer Law.

Please contact your local Soil and Water Conservation District (SWCD) office for more information about buffers and local requirements. 

What is a Buffer?

A buffer, also known as a riparian filter strip, is vegetated land adjacent to a stream, river, lake or wetland. Buffers help filter out phosphorus, nitrogen, and sediment, and are an important conservation practice for helping keep water clean. Studies by the Minnesota Pollution Control Agency show that buffers are critical to protecting and restoring water quality and healthy aquatic life, natural stream functions and aquatic habitat due to their immediate proximity to the water.

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