The City of Keene is seeking qualified bidders for the Downtown Infrastructure Improvements and Reconstruction Project. The project limits are on Main Street and Central Square from the southernmost end on Water Street, continuing north to Court/Washington Street at the northernmost limit of the project. The project as specified in the contract documents is comprised of two phases of construction, divided at the Main Street / Railroad Street / Gilbo Street intersection that are required to be completed separately over the 2026 and 2027 construction seasons. The scope of the project includes, but is not expressly limited to furnishing and installing the following for the project: - Drain system improvements, including roughly 6,300 LF of drain culvert removal and replacement for HDPE culvert diameters between 10” and 36” and 80 stormwater structures (catch basins, drop inlets and drain manholes). - Water system improvements including the removal, replacement and installation of roughly 6,000 LF of 6”, 8” 12” and 16” DI CL52 water main, 65 gate valves and boxes, 16 hydrants and 1,500 LF of water services. - Sewer system improvements, including roughly 6,600 LF of 6”, 8” and 10” PVC Sewer and 40 sewer manholes. - Raised stamped concrete intersections and rapid flashing pedestrian beacons - Approximately 18,000 SY of concrete sidewalks and textured concrete sidewalks, - Approximately 11,000 LF of granite curb and 7,000 LF of granite curb resetting - Electrical panel enclosure, temporary lighting, replacement lighting, conduit, wiring and ancillary electrical improvements. - Traffic signal removal and replacement for Central Square. - Landscaping within the project limits, including: roughly 170 trees, 480 shrubs, 7,000 perennial plantings, loam, seed, tree soil cells, mulch. - Ancillary landscaping and site features include benches, bike racks, bollards, lighted bollards, seat boulders. - Signage removal and replacement within the project limits. - The removal and replacement of the existing irrigation system(s) for the project limits. - The removal and resetting of existing site features like benches, parking pay machines, clock tower, flag poles. - The removal and disposal of roughly 9,100 LF of existing CMP storm drain and 75 existing stormwater structures - Associated maintenance of traffic, erosion controls, SWPPP management, road and sidewalk reconstruction, pavement markings lines and symbols restoration/reinstatement within the project limits.
