Sound Transit DBPM Services for Operations & Maintenance Facility  (DBPM OMFE  Targeting LEED Silver)

Sound Transit DBPM Services for Operations & Maintenance Facility (DBPM OMFE Targeting LEED Silver)

Seattle, WA

Greenbusch (GBG) served as the Subject Matter Expert (SME) for mechanical systems, as a member of the Design-Build Project Management Team (DBPM) to KBA, Inc. (Prime; 2016-2021). GBG also provided Elevator Consulting and limited Acoustical Consulting services for the project.

ROLE: GBG collaborated with Sound Transit, KBA, Hensel Phelps Project Designers and Commissioning Agent (McKinstry) to certify that the operation of mechanical systems complies with the basis of design and design intent.

MECHANICAL ENGINEERING:As Mechanical Engineering SME, GBG provided technical support, document review, design review, quality assurance, assisted with developing testing procedures, inspection and review of design/construction of multiple industrial and administrative spaces with specialized systems for this 24/7 operating facility (targeting LEED Silver). Specific systems include: boiler, chiller, radiant floor heating, chilled beams, heat pumps, roof top air handlers, exhaust fans, pumps, dampers, ducts, pipe, valves, oil separator waste system, wastewater, LRV wash, emergency wash stations, and elevators, as examples.

Situated on 28 acres, this new, 24/7 satellite maintenance facility supports Sound Transit’s future East Link light rail system expansion (as well as Lynnwood, Redmond, Federal Way Links), and includes storage for 96 LRV’s, a 14-bay maintenance facility, wash facility, traction power substations (yard & shop), and offices to accommodate 250 employees. A grand opening was held in May 2021.

WSDOT North Vent Bldg Drone

SR-99 Ventilation Buildings

WSDOT - Seattle, WA

Provided the design/build performance specification of the north and south ventilation buildings for the upcoming SR-99 tunnel replacement of the viaduct.

Design includes heating, ventilation, air conditioning, sprinkler and plumbing for the buildings. Greenbusch also provide vertical transportation and acoustical services for the project.


On-call Mechanical/Electrical Engineering services

WSDOT - Seattle, WA and surrounding areas

Greenbusch has participated in four separate On-Call contracts with WSDOT over the past eighteen years.

Our engineers have provided mechanical designs for elevators, heating, ventilation, air conditioning, plumbing, and vehicle wash systems for various facilities.

Scope includes analyzing heating and air conditioning loads for facilities and providing calculations to support equipment sizing and selections.