Summary
Provide multiple stormwater pipe replacement projects at various locations throughout the City. The intent of this contract is to replace failing, undersized, or deteriorated stormwater conveyance infrastructure and restore proper drainage function, public safety, and long-term system reliability. The Work includes, Removal and proper disposal of existing stormwater pipes, culverts, drainage structures, headwalls, spillways, and any related components identified on the project plans. Installation of new stormwater conveyance systems including HDPE, CMP, or other pipe materials and sizes as specified in the project-specific scopes of work. Installation or reconstruction of associated drainage structures such as Type “C” inlets, catch basins, junction boxes, spillways, headwalls, and concrete mitered end sections. Construction of reinforced concrete encasement where required by the plans or to meet field conditions. Removal and replacement of existing driveways (concrete or asphalt) where necessary to install the new stormwater system or restore disturbed access points. Swale regrading, reshaping, and stabilization to reestablish positive drainage flow throughout the affected corridor. Dewatering, trench safety, bypass pumping, and all means and methods necessary to maintain a safe excavation and maintain drainage conveyance during construction. Protection and support of all existing utilities, including coordination with utility owners when conflicts may occur; soft-digging and flowable fill installation when required to maintain separation. Backfilling, compaction, pavement restoration, sodding, and all surface restoration necessary to return disturbed areas to original or better condition.