Sound Transit University Link Extension

Home » Transportation Sound Transit University Link Extension The 3.15-mile University Link Light Rail line, completed in 2016, extended transit service from Downtown Seattle to the new underground Capitol Hill Station and ended at the new University of Washington Station located adjacent to Husky Stadium. A complex civil engineering and substantial, earth work effort involved…

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WSDOT SR-99 North/South Portal Operations Buildings

Home » Transportation WSDOT SR-99 North/South Portal Operations Buildings As Acoustical subconsultant, Greenbusch was involved with preparation of the RFP technical requirements and preliminary design for the WSDOT SR 99 North/South Portal Operations Buildings that support WSDOT’s SR 99 Tunnel. Scope elements include ventilation system, jet fans, maintenance fans, building mechanical systems, emergency generator sets,…

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WSDOT SR 99 Bored Tunnel Design-Build

Home » Transportation WSDOT SR 99 Bored Tunnel Design-Build Greenbusch provided Construction Noise monitoring for the duration of the building of the SR 99 Tunnel that replaced the Alaskan Way Viaduct. Scope elements included permitting and design-related support for the construction noise aspects of the project that opened February 2019. The firm played a vital…

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WSDOT SR-99 Alaskan Way Viaduct Demolition

Home » Transportation WSDOT SR-99 Alaskan Way Viaduct Demolition With opening of the new, SR 99 Tunnel, demolition of the SR 99 Alaskan Way Viaduct moved forward on February 12, 2019. Phased removal of the 66-year old, double-deck, elevated highway involved an extensive combination of heavy equipment including cranes with huge hydraulic jaws, excavators, and…

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Colman Dock Ferry Terminal Renovation

Home » Transportation Colman Dock Ferry Terminal Renovation Colman Dock is the largest ferry terminal in the state, and is currently undergoing a significant facility renovation to address seismic concerns. The new terminal replaces old areas of the ferry terminal, reconfigures the layout, replaces aged piles, features a new entry building, elevated plaza, viewing platform…

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Portland International Airport (PDX) Terminal Balancing and Concourse E Extension

Home » Transportation Portland International Airport (PDX) Terminal Balancing and Concourse E Extension As a subconsultant to HEA, Greenbusch is providing Audio/Video Paging Systems design, Acoustical Design and Environmental Noise & Vibration services supporting a $175 million, 130,000 SF addition to the terminal. The 750 foot long extension of Concourse E adds seven (7) mainline…

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