Agriculture, Department Of- Forest Service- Usda- Fs, Stewardship Contracting Branch
Mark Twain NF Beaver Lake Dam Rehabilitation - MAKING IMPROVEMENTS AS NECESSARY TO DRAW DOWN WATER LEVELS, CLEAR AND GRUB, EXCAVATE AND REMOVE EXISTING OVERFLOW CONDUIT AND APPURTENANCES AND REPAIRING SPILLWAY EROSION WITH RIPRAP.
Dam rehabilitation and erosion repair 1. Improvements to draw down water levels. 2. Clearing and grubbing. 3. Excavation and removal of existing overflow conduit and appurtenances. 4. Repairing spillway erosion with riprap. 5. Furnishing rot and mildew resistant sediment filter bags ( minimum footprint 150 sq ft, sewn- in sleeve for minimum 4- inch pump discharge hose). 6. Furnishing prefabricated filter inserts for catch basins or drop inlets with high- flow bypass. 7. Furnishing floating turbidity curtains ( made of tightly woven nylon, plastic, or other non- deteriorating material, with fabric overlap, supporting flotation, ballast chain, and dual galvanized wire rope load lines). 8. Geotextile for separation and stabilization.
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