City of Lancaster South 3 MG Elevated Water Storage Tank & Transmission Main

Key Accomplishments

Johnston Construction Company

• The company performed clearing, grading, erosion and sediment control, stormwater improvements, paving, sidewalks, curbs, fencing, landscaping coordination, and restoration of disturbed areas.
• JCC installed approximately 2,250 linear feet of 24-inch ductile-iron cement-lined water transmission main.
• The transmission-main work included large-diameter tees, bends, a butterfly valve, an air-release-valve manhole, restrained joints, pressure testing, flushing, disinfection, and connection to the City’s existing water-distribution system.
• JCC installed process piping, valves, supports, drains, penetrations, and associated mechanical systems within the elevated tank pedestal and supporting facilities.
• The company furnished and installed HVAC and ventilation systems serving the control room, chemical room, pipe vault, and other enclosed operating areas.
• JCC completed electrical power distribution, conduit, conductors, lighting, grounding, receptacles, equipment connections, controls, and instrumentation.
• The company coordinated its work with CB&I Storage Tank Solutions LLC, equipment manufacturers, utility representatives, testing agencies, and other project participants.
• JCC performed testing, commissioning support, operational verification, record documentation, cleanup, and restoration required for completion of its subcontract work.
• Johnston Construction Company performed the civil, mechanical, electrical, and instrumentation portion of the South 3MG Elevated Water Storage Tank and Transmission Main project for the City of Lancaster, Pennsylvania.
• The project provided a new three-million-gallon elevated potable-water storage tank and approximately 2,250 linear feet of 24-inch water transmission main.
• The elevated storage structure was designed with a tank centerline elevation of approximately 127 feet, 6 inches.
• The overall municipal project was identified as City of Lancaster Contract No. 2020-03 and was constructed at 1201 Millersville Pike in Lancaster Township.

Concrete Services Division

• Concrete Services Division performed the forming, concrete-placement, finishing, curing, and related concrete work supporting the City of Lancaster’s new three-million-gallon elevated water-storage tank.
• CSD constructed concrete elements for the main tank foundation, splash pads, meter-vault sump, and tank vault.
• The company furnished and installed footing, slab-on-grade, curved-wall, straight-wall, column, and supported-slab formwork.
• CSD coordinated placement of approximately 541 cubic yards of concrete across the foundation and associated structures.
• The work included approximately 200.85 cubic yards of footing concrete, approximately 124.67 cubic yards of slab-on-grade concrete, approximately 175.69 cubic yards of wall concrete, approximately 34.88 cubic yards of column concrete, and approximately 4.74 cubic yards of supported-slab concrete.
• CSD constructed more than 4,200 square feet of curved-wall formwork for the elevated-tank foundation and related circular concrete structures.
• The company performed floating, screeding, machine-trowel finishing, point-and-patch work, bag finishing, and curing of the completed concrete surfaces.
• CSD installed concrete accessories and coordinated premolded joint material, waterstop, caulking, saw-cut joints, joint sealing, and mesh within its assigned scope.
• The company set approximately 50 anchor bolts furnished by others and coordinated their location with CB&I’s elevated-tank foundation requirements.
• CSD coordinated concrete deliveries, pumping services, testing activities, winter protection, and construction equipment furnished or paid for by Johnston Construction Company.
• Concrete Services Division, LLC performed the concrete portion of the City of Lancaster South 3MG Elevated Water Storage Tank and Transmission Main project in Lancaster, Pennsylvania.
• The overall project provided a new three-million-gallon elevated potable-water storage tank and approximately 2,250 linear feet of 24-inch ductile-iron water transmission main.
• The project site was located at 1201 Millersville Pike in Lancaster Township.
• The City of Lancaster served as the Owner.

Electrical Services Division

• Electrical Services Division performed the electrical construction supporting the City of Lancaster’s new three-million-gallon elevated water-storage tank.
• ESD furnished and installed conduit, conductors, electrical connections, boxes, devices, switches, receptacles, and lighting throughout the elevated-tank facility.
• The company furnished and installed the new electrical service, Panelboard P, metering equipment, disconnects, and surge-protection equipment.
• ESD installed a comprehensive interior and exterior lighting system consisting of multiple fixture types serving the tank pedestal, operating spaces, access areas, and exterior site.
• The electrical scope included four site-lighting poles with concrete foundations that also provided mounting locations for security cameras furnished by others.
• ESD completed underground electrical excavation, backfill, duct-bank construction, concrete encasement, and approximately 480 feet of trenching for the electric utility’s primary service.
• The company installed spare conduits between the new panelboard, remote terminal unit, and other designated future-use locations.
• ESD installed grounding connections between the tank base and ground rods and coordinated the electrical interfaces associated with the tank’s lightning-protection system.
• The company provided conduit and wiring for equipment and systems furnished by others, including access control, security, ventilation controls, mixing controls, cameras, the remote terminal unit, heaters, fans, and instrumentation.
• ESD coordinated inspections, standard testing, startup, operations and maintenance information, submittals, and final record drawings for the electrical installation.
• Electrical Services Division, LLC performed the electrical portion of the City of Lancaster South 3MG Elevated Water Storage Tank and Transmission Main project in Lancaster, Pennsylvania.
• The overall project provided a new three-million-gallon elevated potable-water storage tank and approximately 2,250 linear feet of 24-inch water transmission main.
• The City of Lancaster served as the Owner.
• The ARRO Group prepared the project engineering documents.