99487460
Nov 10, 2025
Manhole installation services, namely, Manhole installation services involving the use of hydro-excavation to create a manhole cavity with stabilized excavation walls, followed by installation of forming systems and placement of high-strength concrete to construct a new structural manhole in undisturbed environments, with optional incorporation of a corrosion-resistant high-density polyethylene (HDPE) sheet liner.
Building Construction and Repair