deposition. Mowing may be appropriate to Protect the waterway from concentrated enhance wildlife values, but must be flow by using diversion of runoff or mechanical means of stabilization such as conducted to avoid peak nesting seasons silt fences, mulching, hay bale barriers and and reduced winter cover. etc. to stabilize grade during vegetation Apply supplemental nutrients as needed to establishment. maintain the desired species composition Minimize damage to vegetation by and stand density of the waterway. excluding livestock whenever possible, Control noxious weeds. especially during wet periods. Permit grazing in the waterway only when a Do not use waterways as a field road. controlled grazing system is being Avoid crossing with heavy equipment implemented. when wet. Inspect grassed waterways regularly, Lift tillage equipment off the waterway especially following heavy rains. Fill, when crossing and turn off chemical compact, and reseed damaged areas application equipment. immediately. Remove sediment deposits to maintain capacity of grassed waterway. Avoid use of herbicides that would be USDA, ARS. 1987. Stability design of harmful to the vegetation or pollinating open channels. Agriculture Handbook insects in and adjacent to the waterway 667. area. USDA, NRCS. 2007. National Engineering Avoid using waterways as turn-rows during Handbook, Part 650, Engineering Field tillage and cultivation operations. Handbook, Chap. 7, Grassed waterways. Mow or periodically graze vegetation to maintain capacity and reduce sediment
Protect the waterway from concentrated flow by using diversion of runoff or mechanical means of stabilization such as silt fences, mulching, hay bale barriers and etc. to stabilize grade during vegetation establishment. Minimize damage to vegetation by excluding livestock whenever possible, especially during wet periods. Permit grazing in the waterway only when a controlled grazing system is being implemented. Inspect grassed waterways regularly, especially following heavy rains. Fill, compact, and reseed damaged areas immediately. Remove sediment deposits to maintain capacity of grassed waterway. Avoid use of herbicides that would be harmful to the vegetation or pollinating insects in and adjacent to the waterway area. Avoid using waterways as turn-rows during tillage and cultivation operations. Mow or periodically graze vegetation to maintain capacity and reduce sediment deposition. Mowing may be appropriate to enhance wildlife values, but must be conducted to avoid peak nesting seasons and reduced winter cover. Apply supplemental nutrients as needed to maintain the desired species composition and stand density of the waterway. Control noxious weeds. Do not use waterways as a field road. Avoid crossing with heavy equipment when wet. Lift tillage equipment off the waterway when crossing and turn off chemical application equipment. USDA, ARS. 1987. Stability design of open channels. Agriculture Handbook 667. USDA, NRCS. 2007. National Engineering Handbook, Part 650, Engineering Field Handbook, Chap. 7, Grassed waterways.
GrassedWaterway_412_Draft_Jan2016.docx