LocationOrange, Virginia
MarketPump Stations
CONSTRUCTION OF A NEW PRECAST-CONCRETE ELECTRICAL BUILDING, REPLACEMENT OF TWO VERTICAL-TURBINE BOOSTER PUMPS, NEW PIPING AND PUMP CONTROLS, ELECTRICAL-SERVICE MODIFICATIONS, SCADA AND RADIO-COMMUNICATION UPGRADES.
Johnston Construction Company
- Johnston Construction Company served as the prime contractor for comprehensive improvements to the Marshall Heights Pump Station and Reservoir serving the Town of Orange, Virginia.
- JCC’s work included construction of a new precast-concrete electrical building to house the upgraded electrical distribution, pump controls, instrumentation, and communications equipment.
- The new electrical building was installed on a cast-in-place concrete foundation and coordinated with the dimensions, penetrations, equipment clearances, and service requirements of the new electrical systems.
- The new booster-pump system included motors, discharge piping, valves, supports, instrumentation, equipment connections, and an integrated pump-control panel located within the new electrical building.
- Each pump replacement was coordinated within a limited 12-hour outage period to protect continuous water-production capability.
Concrete Services Division
- Concrete Services Division, LLC performed concrete construction, reservoir repairs, and protective coating work for the Marshall Heights Pump Station and Reservoir Improvements project.
- Installed and stripped slab-on-grade and special concrete formwork required for the new structures and equipment foundations.
- Coordinated reinforcing-steel placement, anchor-bolt setting, concrete deliveries, pumping services, testing, and construction equipment with Johnston Construction Company.
- Performed reservoir concrete sawcutting, controlled demolition, surface preparation, repair, patching, and disposal activities.
- Performed approximately 6,000 linear feet of sawcutting and approximately 97 cubic feet of hand demolition associated with the reservoir rehabilitation.
B & R Electrical Contractors
- B & R Electrical Contractors, Inc. performed the electrical construction required for improvements to the Marshall Heights Pump Station and Reservoir facilities.
- Furnished and installed the conduit, conductors, boxes, devices, supports, terminations, and electrical connections included in the project’s Division 26 work.
- Installed a new 400-amp electrical service for the new precast-concrete electrical building and associated pump-station improvements.
- Furnished and installed a current-transformer cabinet, utility meter, 400-amp service disconnect, and 400-amp high-voltage panelboard.
- Installed a 45-kVA transformer and 150-amp low-voltage panelboard for building and auxiliary electrical loads.
Additional project details
- JCC constructed a new precast-concrete electrical building adjacent to the pump station, based on a Smith-Midland Easi-Set Model 1012 or approved equal, with an approximate exterior size of 10 feet by 12 feet.
- This sequence allowed existing circuits to be transferred to the new electrical service before demolition of the obsolete electrical equipment within the original pump- station building.