This project proposes a permanent storage and feed system for magnesium hydroxide slurry for treatment Train 2 at the Metro WWTP. Currently, Train 2 has a temporary magnesium hydroxide chemical…

This project will rehabilitate existing manholes that have been classified through Manhole Assessment and Certification Program (MACP) inspections as needing repair or having immediate rehabilitation needs. The City uses a…

This project proposes the replacement of sanitary sewer piping to upsize the existing piping from Manhole 19449MH to Manhole 25145MH for a distance of approximately 5,500 linear feet with a…

Professional services for both the Upper and Lower upgrades. This project consists of two subprojects: Crane Creek Upper North Branch Extension (CC Upper) and Lower North Branch Capacity Upgrade Phase…

The Crane Creek Upper North Branch Extension (CC Upper) was originally designed in 2008 as a combination of 20-inch ductile iron pipe and 21-inch PVC pipe. The 7,100-linear-foot gravity line…

The Lower North Branch Capacity Upgrade Phase 1 (CC Lower) consists of upsizing approximately 9,500 linear feet of existing 15-inch gravity sewer to 36-inch gravity sewer. The project limits will…

SCDOT proposes to widen Leesburg Road from 719 feet west of S-88 (Fairmont Road) to 705 feet east of S-37 (Lower Richland Boulevard), a distance of approximately 3.9 miles. The…

This project includes sewer relocations associated with the widening of Leesburg Road from near Fairmont Road to near Lower Richland Boulevard, a distance of approximately 3.9 miles.

The City of Columbia owns and operates 56 pump stations in its wastewater collection and transmission system, including six major stations. Under the Clean Water 2020 Program, the City is…

Relocation of approximately 3,400 feet of 8-inch and 12-inch sewer lines and 100 feet of force main and appurtenances for an SCDOT sidewalk and stormwater improvement project.