Specifications include, but are not limited to: The project entails installing various types of drainage controls to stabilize the soils. These include the construction of 100’ of combination sheer key and rock toe buttress, subdrain and surface ditches along an existing mine bench and around the Scott residence, and armoring existing ditches to prevent erosion. Construct a 110’ block wall behind the Scott residence to ensure the saturated, unstable hillside does not slide in the future. Replace the two existing culverts along the west side of the project area and install a new culvert with all pipe receiving concrete headwalls. We will close one partially open mine entry with a wildlife accessible closure. The highwall along the mine bench is our waste area and excavated material is to be placed along the base after subsurface drainage controls are installed. The fenced dog lot will be repaired/ replaced as needed and may be temporarily reduced to allow construction access. The yard areas receive residential seeding and all other areas receive the AML general reclamation seed mixture. Trees greater than 3” diameter will be cleared on the unstable slopes behind the home where the combination key-buttress is to be installed and trees less than 3” diameter will be removed along the stable mine bench prior to backfill placement.
