LocationSt. Charles, Charles County, Maryland
MarketPump Stations
NEW SUBMERSIBLE WASTEWATER PUMP STATION, 10-FOOT-DIAMETER WET WELL, MECHANICAL AND ELECTRICAL BUILDING, EMERGENCY BYPASS PUMP, FORCE MAIN AND PROCESS PIPING, ELECTRICAL DISTRIBUTION, INSTRUMENTATION, SCADA, SITE UTILITIES, TESTING, STARTUP.
Johnston Construction Company
- The project included construction of a new approximately 10-foot-diameter wet well and installation of new submersible wastewater pumps.
- JCC constructed a new mechanical and electrical building to house the pump-station piping, electrical distribution, motor-control, instrumentation, and operational equipment.
- The work included a permanent emergency dry-prime bypass-pumping system and concrete equipment pad to support continuity of wastewater service during emergency or maintenance conditions.
- JCC installed new suction and discharge piping, valves, fittings, bypass connections, pipe supports, wall sleeves, flexible connections, and related mechanical appurtenances.
- The project included new electrical service equipment, panelboards, motor starters, grounding and bonding, lighting, power and control wiring, instrumentation, and surge protection.
Concrete Services Division
- CSD furnished the labor, form materials, tools, equipment, finishing supplies, curing materials, and concrete accessories required for its assigned work.
- The concrete scope included construction of the precast mechanical and electrical building base slab.
- The work included concrete equipment-support pads and pipe and valve supports serving the replacement wastewater pumping station.
- CSD furnished and installed the required formwork and coordinated concrete dimensions, elevations, anchor bolts, penetrations, and embedded components with Johnston Construction Company.
- The project included concrete placement, consolidation, floating, screeding, machine troweling, pointing, patching, finishing, and curing.