IN.gov - Skip Navigation

Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.

Indiana Department of Natural Resources

Forestry > Forestry BMP's > Forest Roads > Constructing Forest Roads > Suggested Riparian Management Zone Widths Suggested Riparian Management Zone Widths

TOTAL RMZ WIDTHS*
Watercourse Characteristics 0-5% slope 5-10% slope 10-20% slope 20-40% slope 40%+ slope Primary RMZ
Perennial 40' wide 200 200 200 200 200 200 feet
Perennial 20-40' wide 75 75 75 105 105-165 75
Perennial 20' wide 50 50 65 105 105-165 35
Intermittent 25 45 65 105 105-165  --
Sinkhole Openings 25 45 65 105 105-165  --
Water supply reservoirs and their perennial streams 75 90 130 210 210-300 75
Other lakes & ponds 35 45 65 105 105-165 35

*widths in feet on each side of watercourse

Note: Local modification of RMZ widths may be necessary to reflect landowner objectives or unique conditions (e.g. soil type, flood hazard, vegetation present, cold water fisheries, season of use, scenic quality, importance of intermittent stream to municipal water supply).