Diamond Regional Sewer Lift Station & Dual Force Mains
Location
Lake Elsinore, CAValue
$54MDelivery Method
- Design-Bid-Build
Client Type
MunicipalProject Type
- Pump Station
- Pipeline
Garney is improving wastewater management in Lake Elsinore, California, to support the region’s rapid growth by transitioning homes from septic to sewer systems and expanding wastewater capacity. The project features a new sewer lift station designed by Carollo Engineers and the installation of dual 18-inch and 26-inch HDPE force main designed by Kennedy Jenks.
Solutions
Force Main Rerouting: Strategically planned to avoid right-of-way conflicts, minimize public disruption, and enhance safety.
Warren Epoxy Lining: Installed in place of a T-lock within the wet well, saving $112,000 and accelerating the schedule.
Thermal Control: Repurposed groundwater from dewater operations to cool mass concrete, reducing environmental impact.
Welding & Dewatering: Addressed groundwater intrusion and shoring challenges with additional wells, in-shore sheet pile welding, and geofabric rock reinforcement to ensure safety and stability.
Project Status
Significant progress has been achieved on the Diamond Regional Sewer Lift Station project. Recent milestones include completion of the dual force main installation, backfilling of the sewer lift station and grinder facility, and removal of all shoring associated with the lift station excavation.
Site work is progressing as scheduled. Six drilled concrete piers, each measuring 3 feet in diameter and 67 feet in depth, have been completed. Construction has reached the halfway point for both the lift station building and the perimeter concrete masonry unit (CMU) wall. Installation of yard piping is currently in progress.
In the upcoming year, coating of manholes, wet wells, and the grinder facility, along with installing key mechanical systems such as the bridge crane, grinders, and vertical non-clog pumps, is scheduled. The interior walls of both the grinder facility and the lift station will be coated with Warren epoxy. Additionally, installation of above-ground ductile iron force main piping within the pump gallery and valve meter room will begin.
