County of Chester New Justice CenterChester County, Pennsylvania
- Fire Protection
The new construction of a 410,000 square foot, 8-story, state of the art Justice Center. Boro Construction was awarded two prime contracts to perform the Electrical and HVAC work on this project. The HVAC Contract totaled $9,611,769.00 and the Electrical Contract totaled $12,755,269.00.
The HVAC System consisted of four (4) field-fabricated air handling units composed of heating and cooling coils and steam humidification serving 8 floors of a Criminal Justice Center. Heating was obtained with two (2) 1.2 million BTU water tube boilers, with primary pumping system expansion tanks and air separators. Steam humidification was provided with a 3,700 lb/hr steam boiler with a boiler feed-water system. Cooling was provided with two (2) 600-ton chillers and two (2) 700-ton open system cooling towers with primary pumping system, expansion tanks and air separator. It also had a secondary system for water-cooled air conditioning units, serving the telecom rooms. The variable air volume system consisted of over 550 reheat VAV boxes, ductwork, and diffusers, and was controlled by a central DDC System.
The electrical portionof the project consisted of supplying and installing a 34.5KV 3o service from the public utility pole into a main 34.5KV line up switches which supplied three separate unit substations that transformed down to 480Y/277V 3o 4W and; 1-A 750KW Emergency diesel power Generator system consisting of 1-400A copper bus-duct traveling up seven stories, 7-480Y/277V to 110/220V 3o dry transformers and 14 electric panels; 4 additional 3-phase copper bus-duct runs traveling up to all eight floors, 2 – 400A, 1 – 200A, 1 – 2500A supplying 33 dry transformers and 67 panels to supply power to a total of 20 courtrooms, 12 hearing rooms, 35 holding cells, Judges Chambers, Sheriffs, Clerks, Attorneys, and Secretarial office spaces. The project also required a new and complex security system consisting of, but not limited to, 137 surveillance cameras, 50 TV monitors, 400 panic buttons, 120 card-access locations, entrance x-ray equipment for visitors and their belongings, watchmen tour and interior cell phone transmission relay and roof antenna system. Complete fire alarm and elevator recall, special audio/visual sound and CCTV Systems for each courtroom, CATV antenna and a GPS controlled clock system.
- County of Chester
- Don Thompson
- 14 East Biddle Street, West Chester PA 19380
- Bernardon Haber Holloway Architects
- 425 McFarlan Road, Kennett Square PA 19348
- CONTRACT PRICE:
- COMPLETION DATE:
- June 2007