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Washington State Department of Corrections

Stafford Creek, Phase II, Seattle, WA

building total area

200-acre site

completion date

Phase Iā€”2002

total construction cost



State of Washington Department of Corrections

a/e team

NBBJ Architects

Coffman Mechanical Engineers

Sparling Electrical Engineers

construction team

Pease and Sons Gen. Contractor

Pease and Sons Mech. Contractor

Siemens DDC Control Contractor


project description

This addition to the existing Phase I corrections center provided housing units for 544 more beds to the facility for the State of Washington. The additional buildings included two new housing units and a new laundry facility.

The HVAC systems incorporated a complex smoke evacuation mode, allowing the safe and orderly egress of inmates during a lockdown condition. The new laundry facility incorporates a new 300BHP steam boiler and heat recovery system.

services provided

WJCx was sub-contracted by the Commissioning Agent to provide Test Engineer services. WJCs performed design reviews, wrote/executed functional performance tests, and assisted in the resolution of mechanical system operational problems.

systems tested

4 gas-fired, multizone air handling units, 1 heating and ventilation air handling unit, 2 computer roof air conditioning units, 2 cabinet unit heaters, 3 units heaters, 2 active smoke evacuation systems, and 1 steam boiler system.