TAI completed Plans, Specifications and Estimates (PS&E’s) and performed construction observation for the Warren Avenue water main extension project. TAI designed a 1,500 foot long 8-inch PVC water main extension down Warren Avenue from Rogers Avenue to Warrenville Road. The water main was installed by directional drilling and all open cuts for connections and services in the roadway were temporarily patched and then resurfaced through the annual MFT program.
Originally, the water main was to be constructed using open cut methods due to the anticipated soils being cobble and running sand. Once the soils report returned findings of cohesive soils to a depth of 8 feet, it was decided to directionally drill the water main to reduce impacts to the travelling public and the neighborhood. Work included installation of fire hydrants, IEPA permitting, and surveying.
Construction cost for the project was $400,000.