This project is for the design, engineering and permitting of a culvert replacement on Canaan Hill Road. The specifications for this structure are based on the recommendation of Vermont Agency of Transportation and Agency of Natural Resources staff in a 2024 Hydraulics Study. The box culvert will be designed to meet all VTrans Hydraulics Manual standards for stream equilibrium and bank full width. Different options for culvert replacement are listed in the attached study. Consultants will be required to maintain an oversight role after the engineering study is completed and the work for the project has commenced. This oversight role is crucial to ensuring the construction and installation of the new structures meets the elements of the proposed plan. This project is intended to improve flood resiliency, prevent future wash outs of Canaan Hill Road and reduce sedimentation of Keyer Brook, as well as improve aquatic organism passage. The existing boiler tube culvert (VT Culverts 539009001070 ) is undersized and prone to failure. The culvert has regularly overtopped during high water events, most recently in July 2024, causing major wash outs that cut off all vehicle access for the approximately 15 households located on Canaan Hill Road beyond the location of the existing structure. The new box culvert or other options shall be designed to the standards of the VTrans Hydraulic Manual, will be capable of handling flows from increasingly frequently large stormwater events. This project is intended to limit future damage to Canaan Hill Road, reduce sedimentation and protect water quality in the Bunell Brook and Keyer Brook currently rated by the Agency of Natural Resources as a B-1 Very Good waterway for aquatic biota and fisheries. The intersection of Canaan Hill Road and Fund Road is located off of VT 102 approximately 1.25 miles. Plans to maintain access to Canaan Hill Road during construction and any resulting right-of-way impacts must be included as part of the design, engineering and permitting process.
