The crews at RK Excavation are working to complete a relief well collection piping rehabilitation project for the Tulsa District. The Copan Dam project includes digging up all the existing collection piping, installing two weir measuring manholes, 5,650’ of 12” solid wall collection piping and 5,650’ of 12” perforated pipe. Twenty-six new 5’ X 10’ manholes will also be installed and then 37 existing relief wells will be connected to the new collection piping. The relief well water flow will be collected in the solid wall pipes and the shallow groundwater will be collected in the perforated pipe. The final part of the project involves regarding over one mile of drainage swale and rebuilding the dam’s service road.