New Hampshire Bureau of Public Works Statewide Mechanical Engineering Services

Various Locations, New Hampshire

Three multi-year retainer contracts providing services to the Bureau of Public Works to address mechanical, electrical, and associated structural engineering issues for HVAC at State facilities. Select projects include:

Concord Prison Mechanical Modifications, Special Housing Unit, Concord. Designed reconfiguration of the HVAC ventilation system serving the Special Housing Unit (SHU) in the prison. Reconfigured ventilation system ductwork serving the inmate cells, making access to the plumbing system clean-outs easier. Replaced two gas-fired boilers with three new high efficiency condensing boilers.

Heating Plant Renovations at Peterson and Dube Buildings, Lakes Region Facility, Laconia. Design for replacement of two gas-fired boilers with three new high efficiency condensing boilers, utilizing existing mechanical rooms. Added new digital boiler controls and fully modulating boiler gas burners to optimize the energy efficiency of standalone heating plant in both buildings.

Health and Human Services Building Chiller Upgrades, Concord. Design for replacement of a central 200-ton chiller, a 25-ton chiller, replacement of a 200HP high pressure steam boiler, and improvements to two air handling units. Assessed energy recovery methods, control sequencing, and occupancy usage.

Data Center Upgrades, Traffic Management Center, Concord. Designed HVAC for a new computer room including back-up A/C and upgrades and power enhancements for the primary data center that serves the State’s Traffic Management Center and 9-1-1 facility. Sized system for expansion of server equipment (air conditioning, power, and emergency services). The new A/C system utilizes a glycol cooling loop through an exterior dry cooler to provide “free cooling.”

Glencliff Assisted Living Facility, Glencliff. Design and survey services for this off-grid facility, including an emergency generator for a wood chip plant and above ground and below ground diesel fuel storage tanks.

New Hampshire State House. Design of HVAC upgrades to the State House’s central kitchen and dining facility, including new air conditioning equipment, kitchen hood make-up air, and exhaust equipment. Replaced two packaged air conditioning units and upgraded the kitchen ventilation system.

Improvements to Traffic Buildings, New Hampshire Department of Transportation. MEP assessment at Traffic Building A. Designed gas-fired radiant tube heating upgrades to Traffic Garage Building B. Designed gas-fired heating upgrades to Traffic Garage Building C.

NH Veterans Home Equipment Upgrades, Tilton. Upgrades included a new patient wandering system, replacement of all water source heat pumps including temperature control upgrades, a new commercial kitchen, and expansion of an existing domestic solar hot water system.

Cooling Tower and Roof Replacement, Rockingham County Courthouse, Brentwood. Design and cost estimating for replacement of cooling towers and roofs on an existing courthouse.