LocationHopewell, Virginia
MarketWater Storage and Tanks
2.5 MILLION GALLON DOMESTIC ELEVATED TANK.
Johnston Construction Company
- Johnston Construction Company performed civil, mechanical, electrical, and instrumentation work for the Virginia American Water Hopewell District 2.5 Million Gallon Domestic Elevated Tank project in Hopewell, Virginia.
- The project supported construction of a new 2.5-million-gallon composite potable water storage tank at the Hopewell Water Treatment Plant.
- JCC’s scope included site work, civil construction, mechanical piping, electrical work, instrumentation, tank support improvements, foundation coordination, utility connections, stormwater piping, control conduit, wiring, testing support, and closeout documentation.
- The overall project included a new composite elevated water storage tank with concrete support column, steel tank bowl, inlet and outlet piping, inlet and outlet valves, overflow piping, stormwater piping, site grading, paving, fencing, seeding, and related appurtenances.
- Foundation work included design and installation support for the auger cast pile foundation system and related concrete foundation improvements required for the elevated storage tank.
Concrete Services Division
- Concrete Services Division, LLC performed the specialized concrete work associated with the foundation for Virginia American Water Company’s new 2.5-million-gallon composite elevated water storage tank at the Hopewell Water Treatment Plant.
- CSD furnished labor, form materials, tools, finishing supplies, curing materials, concrete accessories, and other resources necessary for its assigned forming and concrete-placement operations.
- CSD’s scope included slab-on-grade forming, curved-wall forming, column forming, slab placement, wall placement, column placement, floating and screeding, machine-trowel finishing, pointing and patching, bag finishing, curing, concrete accessories, reinforcing-steel placement, mesh, and dowels.
- The work included approximately 1,639.91 square feet of curved-wall formwork, approximately 334.06 cubic yards of wall concrete placement, approximately 48.31 cubic yards of tank-foundation slab concrete, and approximately 26.05 tons of reinforcing-steel placement.
- CSD coordinated ready-mixed concrete purchased by JCC, concrete pumping, testing laboratory services, reinforcing-steel handling, and JCC-provided equipment required to support concrete operations.
Electrical Services Division
- Electrical Services Division performed the electrical construction associated with Virginia American Water Company’s new 2.5-million-gallon composite elevated water storage tank at the Hopewell Water Treatment Plant.
- ESD provided the electrical infrastructure necessary to support the elevated tank, including power-distribution equipment, conduit and raceway systems, power and control wiring, electrical connections, grounding and bonding, lighting, and associated field electrical work.
- The electrical installation supported a composite elevated water-storage structure approximately 193.5 feet high from finished floor to overflow, with a minimum operating capacity of 2.5 million gallons.
- ESD’s work coordinated with JCC’s larger civil, mechanical, electrical, and instrumentation subcontract to CB&I and with the tank manufacturer’s structural and electrical requirements.
- The project electrical specifications included low-voltage wire and cable, fiber-optic cable, conduit and tubing, boxes, wiring devices, wiring connections, surge-protective devices, circuit breakers, switches, panelboards, transformers, lighting, grounding, and associated electrical testing.