Hopewell 2.5 MG Composite Elevated Water Storage Tank

Key Accomplishments

Johnston Construction Company

• 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.
• Electrical and controls work included electrical power and control conduit and wiring to the existing GAC contactor building, instrumentation coordination, process monitoring and control system support, lighting, grounding, electrical testing, and related systems required to support the completed tank facility.
• 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 was completed for Virginia American Water Company, with CB&I Storage Solutions LLC serving as the prime contractor for the composite elevated water storage tank.
• The project consisted of construction support for a new 2.5-million-gallon composite potable water storage tank at the Hopewell Water Treatment Plant located at 900 Industrial Street in Hopewell, Virginia. The tank work included a concrete support column, steel tank bowl, appurtenances, process piping, electrical and control systems, site improvements, and related utility connections.
• JCC’s civil scope included mobilization, site preparation, rough grading, finish grading, excavation, trenching, site clearing, erosion and sediment control, paving, fencing, seeding, storm drainage improvements, site restoration, and coordination of construction access and laydown areas.
• Foundation-related work included support for the auger cast pile foundation system, concrete foundation construction, reinforcing steel coordination, cast-in-place concrete, grout, submittals, testing coordination, quality documentation, and coordination with CB&I’s elevated tank construction sequence.
• Mechanical and process piping work included inlet and outlet piping, valves, fittings, process piping insulation, tank piping connections, site piping connections to the existing distribution system, overflow piping, and related appurtenances required for the completed potable water storage facility.
• Stormwater and site utility work included overflow piping, stormwater piping, underground duct coordination, manholes, drainage features, grading, paving, and restoration of disturbed areas after completion of construction.
• Electrical and instrumentation work included electrical power and control conduit and wiring to the existing GAC contactor building, low-voltage wire and cable, fiber optic cable coordination, conduit and tubing, boxes, wiring devices, wiring connections, grounding and bonding, surge protective devices, panelboards, lighting, electrical identification, and electrical testing.
• Instrumentation and controls work included process monitoring and control system support, instruments, instrument enclosures, control panels, programmable logic controller coordination, local area network equipment, field devices, wiring, testing, and integration support required for the completed tank facility.

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.
• CSD provided labor associated with concrete accessories including premolded joint material, waterstop, caulking, and related concrete-interface materials.
• Anchor-bolt setting was included on a time-and-material basis, requiring coordination between CSD’s foundation work and the structural requirements of the elevated-tank system.
• The concrete work was performed in accordance with the project contract documents, CSD control estimate, CB&I project specifications, and CB&I foundation drawings.
• CSD’s work supported a major composite elevated-tank structure consisting of a reinforced-concrete foundation and support structure carrying a welded-steel tank with a minimum operating capacity of 2.5 million gallons.
• Concrete Services Division, LLC performed the concrete-foundation portion of the Hopewell 2.5 Million Gallon Domestic Elevated Water Storage Tank project at the Virginia American Water Hopewell Water Treatment Plant.
• The project site is located at 900 Industrial Street, Hopewell, Virginia 23860.
• Virginia American Water Company undertook the project to construct a new 2.5-million-gallon composite elevated water storage tank serving its Hopewell District water system.
• The elevated tank was designed as a composite structure consisting of a reinforced-concrete foundation, a circular reinforced-concrete support structure, a domed concrete structural slab, a reinforced-concrete ring beam, and a welded-steel water-storage tank. The specifications establish a minimum net operating capacity of 2,500,000 gallons and an approximate height of 193.5 feet from finished-floor elevation to the tank overflow.
• CB&I Storage Solutions LLC served as the Prime Contractor for the project.

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.
• ESD performed electrical work associated with the tank’s FAA-required aviation obstruction-lighting system, including coordination of a medium-intensity red/infrared LED beacon, controller, photocell, side marker lights, cabling, and mounting hardware.
• ESD coordinated electrical submittals and equipment availability through significant supply-chain challenges affecting the specified aviation obstruction-lighting system.
• The final obstruction-lighting equipment included an L864 LED red/IR beacon, FTC371 Smart Controller, photocell, four L810 LED double side lights, cabling, and mounting hardware.
• Electrical Services Division’s project management was led by Ron Owens, who is explicitly identified in the project correspondence as Project Manager for B&R Electrical Contractors / Electrical Services Division.
• Electrical Services Division performed the electrical portion of the Hopewell 2.5 Million Gallon Domestic Elevated Water Storage Tank project at the Virginia American Water Hopewell Water Treatment Plant.
• The project is located at 900 Industrial Street, Hopewell, Virginia 23860. The new facility provides a 2.5-million-gallon composite elevated water-storage tank as part of Virginia American Water Company’s Hopewell District water infrastructure.
• The overall elevated-tank system consists of a reinforced-concrete foundation, circular reinforced-concrete support structure, structural concrete dome and ring beam, and a welded-steel water-storage tank.
• The project specifications establish a minimum net operating capacity of 2,500,000 gallons, an approximate bowl diameter of 105 feet, and an elevation of approximately 193.5 feet from finished-floor level to tank overflow.
• CB&I Storage Solutions LLC served as Prime Contractor for the project under its agreement with Virginia American Water Company.