Downtown Infrastructure Improvements Project

2026-11-03

The scope of work that is included as part 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 , including 10 ” 12 ”, 15 ”, 24 ”, 30 ”, 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 ”, 10 ” and 12 ” PVC Sewer and 40 sewer manholes . · Approximately 18 , 000 SY of concrete sidewalks and textured concrete sidewalks , · Raised stamped concrete intersections and rapid flPashing pedestrian beacons · Approximately 11 , 000 LF of granite curb installation and 7 , 000 LF of granite curb removal , stockpiling and resetting · Electrical panel enclosure , temporary lighting , replacement lighting , conduit , wiring and ancillary electrical improvements . · Traffic signal removal and replacement for Central Square , with traffic signals , posts and mast arms furnished by the City . · Landscaping within the project limits , which include roughly 170 trees , 480 shrubs , 7 , 000 perennial plantings , loam , seed , tree soil cells , mulch . · 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 disposal of roughly 9 , 100 LF of existing CMP storm drain and 75 existing stormwater structures ( drain manhole and catch basin ). · Associated maintenance of traffic , erosion controls , SWPPP management , road reconstruction , pavement markings lines and symbols restoration / reinstatement within the project limits .

New Hampshire

2026-04-28