Ocean City 28th Street Wastewater Pumping Station Improvements

Key Accomplishments

Johnston Construction Company

• JCC’s scope included construction coordination, demolition, earthwork, excavation, trenching, backfilling, pavement restoration, outside piping, grading, structural improvements, pumping equipment, mechanical systems, electrical systems, instrumentation, controls, bypass operations, startup, testing, and closeout.
• Major equipment and systems included submersible chopper pumps, davit crane, packaged engine generator, automatic transfer switch, surge protective devices, motor starters and relays, panelboards, lighting, instrumentation, control systems hardware, heating and ventilation equipment, ductwork, piping, valves, and fittings.
• The work required careful sequencing at an existing wastewater pumping station to maintain operations, protect existing utilities, coordinate bypass pumping, complete electrical and control integration, and return the station to service.
• Johnston Construction Company completed the 28th Street Wastewater Pumping Station Improvements project for the Town of Ocean City, Maryland. The project was designed by Whitman, Requardt & Associates, LLP and performed under Contract No. WR/OC-203.
• The project consisted of improvements to an existing wastewater pumping station, including mechanical, electrical, structural, process, site, and miscellaneous upgrades. The work included furnishing and installing all materials, labor, equipment, excavation, backfill, demolition, structural work, testing, startup, and incidentals required to complete the pumping station improvements.
• JCC’s civil and site work included demolition and removal of existing work, earthwork, excavation, trenching, backfilling, pavement restoration, outside piping and appurtenances, fine grading, seeding, sodding, cleanup, temporary facilities, and construction sequencing.
• Structural and architectural work included coordination of formwork, reinforcing steel, concrete accessories, cast-in-place concrete, precast concrete water and wastewater structures, protective lining systems, metal fabrications, post-installed anchors, pipe and tube railings, rough carpentry, sheathing, exterior architectural woodwork, asphalt shingles, siding, FRP doors and frames, door hardware, painting, high performance coatings, louvers, and vents.
• Mechanical and process improvements included submersible chopper pumps, davit crane, general mechanical requirements, piping, valves and fittings, mechanical insulation, plug valves, pumping station bypass operations, heating and ventilation equipment, ductwork, and testing, adjusting, and balancing.
• Electrical, instrumentation, and control work included electrical general provisions, short circuit and arc flash study, grounding and bonding, wire, splices and terminations, raceways, wiring devices, packaged engine generator, surge protective devices, underground raceways and ductbanks, automatic transfer switch, individual motor starters and relays, panelboards, lighting fixtures, electrical field acceptance testing, general instrumentation and controls, instrumentation, and control systems hardware.
• The project required bypass pumping and careful operational coordination to maintain wastewater service while work was performed. JCC coordinated temporary systems, utility protection, pumping station bypass operations, equipment installation, electrical and controls integration, startup, testing, training, warranties, closeout documentation, and final restoration.
• The Project Was Completed On 1st May, 2020

Concrete Services Division

• Concrete Services Division, LLC performed concrete forming and concrete placement work for the 28th Street Wastewater Pumping Station Improvements project in Ocean City, Maryland.
• The project included concrete support for wastewater pumping station improvements, including structural improvements, equipment support systems, pump station appurtenances, and related site improvements.
• CSD’s scope included concrete forming, concrete placement, finishing, curing, concrete accessories, reinforcing steel support, patching, anchor bolts, sleeves, embeds, and related concrete coordination.
• Major concrete work included the pumping station building footing, wall, slab, and equipment pad.
• CSD performed concrete work for stairs, including stair footing, landing, steps, and related forming and placement.
• CSD’s scope included wet well and valve vault concrete work, including lower vault wall ring wall, upper wet well wall, step, valve vault, pump supports, existing dry well support, pipe supports, and generator pad.
• The work required coordination with Johnston Construction Company, Town of Ocean City, Whitman, Requardt & Associates, concrete suppliers, reinforcing steel suppliers, concrete pump services, testing personnel, and overall wastewater pumping station construction sequencing.
• Concrete Services Division, LLC performed the concrete subcontract scope for the Town of Ocean City 28th Street Wastewater Pumping Station Improvements project in Ocean City, Maryland. The work was completed under subcontract to Johnston Construction Company for Job No. 2017-20.
• The overall project consisted of improvements to the 28th Street Wastewater Pumping Station for the Town of Ocean City Department of Public Works. The project included mechanical and electrical equipment, support systems, appurtenances, site work, structural improvements, and miscellaneous work required for the upgraded pumping station facility.
• CSD’s concrete scope included furnishing labor, materials, tools, and equipment necessary for concrete forming and concrete placement in accordance with the subcontract documents, contract documents, specifications, and project requirements.
• Concrete work included the pump station building footing, building wall, building slab, and equipment pad. CSD coordinated forming, reinforcing steel, concrete placement, finishing, curing, and protection for the building concrete work.
• CSD also performed concrete work for the stairs, including footing, landing, steps, forming, placement, finishing, curing, and related concrete accessories.
• Wet well and valve vault concrete work included the lower vault wall ring wall, upper wet well wall, step, valve vault concrete, pump supports, existing dry well support, pipe supports, and related concrete items required for the wastewater pumping station improvements.
• Additional concrete work included generator pad construction, equipment pad work, anchor bolts, dowels, sleeves, embeds, joint sealing coordination, reinforcing steel support, and point and patch work.