Seaford Village Lift Station
Location Seaford, DE
Client City of Seaford
Costs $995,900
Date of Completion 2024
Services #Civil / Site Engineering #Construction Services #Structural Engineering #Water / Wastewater Engineering
The City of Seaford owns and operates a sewage lift station located at the Seaford Village Shopping Center. The existing station consisted of an 8’-0” diameter precast concrete wet pit and metal dry-pit located adjacent to the wet pit. The station was constructed in 1986, and the steel dry-pit was approximately 30-feet deep, which presented a safety hazard as it was a confined space and had experienced considerable corrosion in the lower portions of the pit. The station also lacked a permanently installed emergency power source. The City contracted with GMB to design a replacement for this aging infrastructure with a more modern system.
LIFT STATION IMPROVEMENTS INCLUDED:
- Converted existing wet pit into wet well to house new submersible pumping equipment.
- Concrete rehabilitation of wet pit surfaces.
- Installed vault to house isolation and check valves.
- Constructed new concrete top slab to cover wet well and valve vault.
- Removed all dry-pit equipment. Abandoned/filled existing dry-pit with flowable fill.
- Installed retrievable sewage grinder (submersible type) in wet well.
- Reused existing force main, replace air release valve.
- Installed emergency bypass pumping connection.
- Installed new outdoor rated electrical cabinet to house all electrical gear and controls. New instrumentation (floats, transducer, etc.) was included, as well as PLC based pump controls with VFD operated pumps. Included telemetry and SCADA communication.
- Emergency power generator and site lighting.
- Ventilation system for below grade areas
- Miscellaneous site improvements.
- Specification for bypass pumping system during construction of improvements.
