Muscle Shoals Water Treatment Plant

Muscle Shoals Utilities Board
Colbert County, Alabama

Engineers of the South assisted the Muscle Shoals Utilities Board during the construction administration phase of the Muscle Shoals Water Treatment Plant Expansion and Upgrades.

Robert Pride and Craig Swinney served as the lead Project Manager and Engineer throughout the preliminary and design phases of the project. Mr. Pride also assisted the Board during the preliminary rate analyses, financial models, and ultimately the bond issue used for project funding.

The existing 6 mgd conventional surface water plant was extensively renovated and expanded to 9 mgd with 3 mgd of new micro-filtration. Provisions for future expansions to 12 mgd (using membrane filtration for the full plant capacity) were made throughout the design of the new facilities. The project’s scope includes:

  • New raw water pumping station with a natural gas driven standby power generator.
  • Influent metering vault.
  • A new pre-aeration basin.
  • A new dual chambered rapid mix and flow splitting structure.
  • New flocculation basins.
  • New sedimentation basins with continuous sludge removal and plate settlers.
  • Piping modifications required to maintain the 4 existing dual media filters and 2 pipe galleries in service.
  • A new 3 mgd (expandable to 12 mgd) membrane filtration process (micro-filtration) capable of running in parallel with the existing conventional plant filters.
  • All new pre and post chemical feed facilities (sodium hypochlorite, poly-aluminum chloride, caustic, and fluoride).
  • Clearwell piping and baffling improvements.
  • A new high service pumping station and metering vault.
  • Distribution system improvements including a new 24” finished water main between the plant and downtown Muscle Shoals.
  • On-site lift station and forcemain for wastewater service.
  • Extensive site and yard piping improvements.
  • Associated electrical improvements with standby power generator.
  • New instrumentation, controls, and SCADA system for both the plant and distribution system.
  • All new laboratory and administrative facilities.