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Page t of <br /> OPERATION AND-MAINTENANCE PLAN <br /> STRUCTURE FOR WATER CONTROL <br /> COOPERATOR cS� 4 ,4eNT ',,ea DATE V 61ST 420 <br /> ADDRESS 6 /00 �T1 e6r k2E2o <br /> PRACTICE LOCATION - SEC 8 T 3 S R 3 � . VI LD NO . <br /> GENERAL. <br /> A properly operated and maintained structure for water control is an asset toyour farm. This <br /> structure was designed and installed to safely convey water at condition that w I1 prevent erosion. <br /> The estimated life span of this system is at least % fir years. The life of this sy item can be <br /> assured and usually increased by developingand carrying out a good operation and maintenance <br /> program- <br /> This practice will require you to perform periodic operation and maintenance to maintain . <br /> satisfactory performance. Here are some recommendations to help you develop a good operation <br /> and maintenance program. <br /> GENERAL. RECOMMENDATIONS <br /> • All fences, railings, and/or warning signs shall be maintained to provide ' g and/or <br /> prevent unauthorized human or livestock entry. <br /> • Maintain vigorous growth of desirable vegetative coverings. This includes reseeding, <br /> fertilization, and controlled application of herbicides when necessary. Periodic mowing may <br /> also be needed to control height. <br /> • Remove any debris that may accumulate on or in the immediate area of the structure. <br /> • Make sure that all structural drains are functional. <br /> • Determine and eliminate causes of settlement or cracks in the earthen sections and repair <br /> damage. <br /> • Repair spalls, cracks and weathered areas in concrete surfaces. <br /> • Repair or replace rusted or damaged metal and paint. <br /> • Check all valves, gates and other appurtenances for proper functioning. If m rorn or damaged, <br /> repair or replace following the manufacturer's recommendations. <br /> • Replace weathered or displaced rock riprap to constructed grade. <br /> • Check all timber or lumber sections for decay and other damage, especially sections in <br /> contact with earth or other materials. Repair damaged sections and apply protective <br /> coatings as needed. <br /> USDA -NRCS ( May 1997 <br />