Electrical Engineering – DuBois & King, Inc.

Jericho Market MEP Engineering

DuBois & King provided mechanical-HVAC, electrical, plumbing, and fire protection engineering services for core and shell design for an 18,000-sf “country-style” general market and grocery store. The project consisted of renovation and expansion of an existing metal building. Services included design of premium efficient HVAC, gas-fired VAV equipment, including heat recovery, design of a new domestic water distribution system, public restrooms and “back of house areas.”

Electrical design included a new 1,000 Amp service, general and specific power distribution, interior lighting, exterior building-mounted lighting, and life-safety systems, including fire alarm and security. D&K engineers provided coordination with the tenant’s fit-up MEP requirements, including a centralized rack refrigeration system, full commercial kitchen, deli, and similar food services.

Jay Peak Resort Austria Haus

D&K provided mechanical, electrical, plumbing, and structural design engineering services for the renovation to the Austria Haus building at the base of the mountain at Jay Peak. The building was redesigned to serve as a “country store” at the main level. Provisions General Store includes a small commercial kitchen, café seating, a general store grocery area, and retail “logo wear” area.

The store includes a walk-in beer cooler and vertical cooler/freezer grocery cases – both with custom designed economizers for winter free cooling operation. The food service includes a meat and deli line, hot food line, and drink service.

MEP upgrades for the 3-story building include new condensing boilers, pumps with new distributed heating systems, energy recovery unit, new plumbing and toilet rooms, electrical upgrades, and structural improvements. The upper level of the Austria Haus – used as a small conference and banquet facility – received new toilet rooms and improvements to the heating and ventilating systems. The lower level which includes back of house for the store and the mechanical spaces was left largely intact pending future planning by the Owner.

White River Junction VA Medical Center Electrical Upgrades

Design and construction phase services for $2.9 million of upgrades to electrical systems at the White River Junction VA Medical Center. The facility is a 450,000-sf, 64-acre, multi-building campus that includes offices, in-and out-patient hospital care areas, cafeterias, and support functions.

More than 300 electrical system deficiencies were addressed to achieve campus-wide improvements in reliability, serviceability, safety, energy efficiency, and emergency power. Complex, detailed construction phasing was developed to assure all active areas of the hospital would function without interruption during construction. Where deficiencies were addressed, lighting costs were cut in half while providing additional and improved lighting and control.

The electrical distribution included upgrades to the 5kV and 15kV medium voltage and low voltage distribution systems. New switchgear was provided along with reconfiguration to allow for servicing without interruption of power to the 15kV medium voltage system. Inside the facility, the existing low voltage distribution systems were upgraded to replace obsolete equipment.

The interior lighting system upgrade work included most of the facility buildings, requiring identification of the existing inefficient light fixtures, performing lighting calculations (photometric plans), and design for new high performance fixtures. Campus wide photometric site plans were developed to replace metal halide exterior site lighting with energy efficient LED lights. Lighting calculations were completed to provide for appropriate lighting levels for security and pedestrian access to the buildings. More than 90 exterior fixtures were replaced. The new LED lights require one-half of the wattage of the replaced metal halide lamps. The lighting improvements significantly reduced energy usage and costs. Exterior lights are dimmable and computer controlled via wireless radio control. More than 1,600 interior fixtures and 145 exterior fixtures, including 91 pole fixtures, were designed for replacement or to supplement lighting for security.

The project received a Merit Award in the ACEC/VT Engineering Excellence Awards program.

Vermont State House Chiller Upgrades

DuBois & King performed mechanical, structural, and electrical services for the design of a replacement chiller to provide year-round cooling capacity utilizing water-to-air cooling coils. New chiller senses 8 different air-handling units throughout the State House. Design included replacement of control valves on air handling units to provide variable speed pumping to save energy. Structural evaluation was performed to evaluate existing equipment framing and to ensure roof load carrying capacity was adequate.

USDA Forest Service Kiasutha Recreational Area

Inspection, evaluation, and design of improvements to the Kiasutha Recreational Area located in the Allegheny National Forest. Performed inspections of the project site to make improvements for new campsite locations, orientation, accessibility, slopes and grading, drainage, and utility connections. Services included:

Field Survey/Data Collection. Survey and inventory/base maps.

Roadway/Transportation. Design of cul-de-sacs, new parking areas, new roadway sections, replacement of culverts, new drainage ditches, and riprap ditch lining.

Campsite Improvements. Design for improvements and construction of new campsites.

New Campground Loop. Design for new campsite loop including 20 campsites.

Site Design. Design of amphitheater, two playground areas, and accessible pathways.

Facility Improvements. Water, electric, and sewer upgrade design including shower/restroom buildings, and picnic pavilions.

Water System Improvements. Design for new waterlines and replacement of existing waterlines including new valves, stops, and water system drains.

Sewer Systems. Design for new and rehabilitation of sewer lines and manholes, correct infiltration and inflow, and new hookups for campsites.

Electrical System Improvements. Upgrade and design of new electrical services and equipment, and increased capacity upgrades.