Minnehaha County Bridge 50-243-100 crosses over Slip Up Creek and consists of a 2-span continuous concrete slab superstructure with a total length of 60 ft and a clear width of 32 ft. Crash-tested reinforced concrete bridge railing was included in the design. The bridge substructures consist of reinforced concrete abutments and a concrete pier cap, supported on driven steel piling. Services Preformed: Economic Analysis, TSL Report, Preliminary / Final Bridge Design, Specifications, Cost Estimate. Construction Completion Date: 2015. Construction Cost: $460,793.