Candia Road Culvert Design, Permitting and Construction Services
Gale provided emergency assistance to repair an existing 24-inch corrugate metal pipe (CMP) culvert along Lane Road in Chester, NH flooded due to a failed beaver dam located up-gradient from the culvert crossing. Gale developed a repair design, filed an emergency permit with State Agencies, and collaborated with the Town’s on-call contractor to construct the repair of the washed-out stream crossing, returning the roadway to full service within two weeks. The repair design involved the installation of erosion control and water diversion measures, excavation of unsuitable material, installation of pre-cast concrete inlet and outlet headwalls and an up-sized 36-inch double-walled (corrugated exterior / smooth interior) HDPE culvert, placement of riprap inlet and outlet protection stone, and construction of associated roadway infrastructure. All work was performed in accordance with New Hampshire’s Best Management Practices for Routine Roadway Maintenance Activities.
