ST. JOHNS COUNTY, Fla. – St. Johns County is advancing a major infrastructure upgrade at the Marsh Landing Wastewater Treatment Plant as part of its ongoing Capital Improvement Plan.
The $2.3 million project focuses on replacing the plant’s aging electrical systems to ensure reliable service for years to come.
Originally constructed in the 1980s and partially updated in the 1990s, the Marsh Landing facility serves residents in the former Ponte Vedra Utility area, which the county took over in 2005.
The upgrade will replace outdated electrical equipment with a new motor control center (MCC) housed in a newly built electrical building.
The project includes building a new duct bank to connect the MCC to existing plant equipment. This will also enable a smooth switch to generator power during storms or outages, enhancing the plant’s resilience against extreme weather events.
Kevin Ledbetter, senior engineer for St. Johns County Utilities, said they’re bringing the system up to code and making it “ready for the future.”
Crews are currently obtaining specialized equipment. Construction is expected to start once these materials arrive, with completion targeted for fall 2026.
Until then, the plant will continue using its existing auxiliary generator. After the upgrade, county officials will assess whether to keep or replace the backup system based on future power needs.
The Office of Public Affairs produced a video highlighting the project’s progress so far:
For more information on St. Johns County Capital Improvement Projects, visit www.sjcfl.us/featured-projects.