Specifications include, but are not limited to: This project is being completed to remove sediment build-up upon the lake ward approach of the existing concrete boat ramp to assure sufficient free board and uninhibited use of the ramp for boaters throughout the year. Construction will occur between mid and late September, 2019. The project involves the installation of a geo-textile filter curtain around the area to be excavated. Excavation will occur with the use of a medium-duty tracked excavator in order to remove lake bottom sediment (boat prop wash berm). A silt curtain will be installed in the lake around the work area (including the courtesy dock), extending from the surface to the bottom and will be secured to the lake bottom, and reinforced as necessary against impact from wind or wave current. The curtain will be maintained until the project is complete and turbidity within the curtain has decreased to the level of turbidity outside the curtain. A dewatering and disposal area must be identified and approved by the project engineer, prior to initiating construction activities. It is likely that the courtesy docks will need to be removed in order to completely remove the sediment. The ramp will be closed to use during the project, limiting public access for a period during dredging. The contractor must post notification at the access at a minimum, one week prior to construction