Vertical Conveyance Systems Upgrade Program

Port of Seattle | Sea-Tac, WA

  • Architect
  • SRG Partnership
  • Contractor
  • Multiple
  • Client
  • Port of Seattle
  • Location
  • Sea-Tac, WA

Project Overview

The Vertical Conveyance Systems Upgrade program includes the modernization or addition of over 30 elevators and escalators throughout Seattle Tacoma International Airport. OAC assembled a select team to execute these projects in a CM-Led design delivery. OAC recognized that the biggest challenges associated with these modernizations were in the logistics, phasing, organization and communication. With this in mind OAC carefully crafted an experienced construction management leadership team and partnered with industry leaders Lerch Bates and SRG Partnership to provide the vertical circulation and architectural design components of the program. OAC worked closely with the Port of Seattle to sequence the projects and develop the individual bid packages for construction.


Central Terminal Freight Elevators
This project includes (2) new 10,000lb capacity freight elevators located symmetrically on each side of the full-height curved glazed curtainwall of the Central Terminal (CTE). These new 4-Stop freight elevators provide direct access to the basement, ramp, ticketing and mezzanine levels providing enhanced capacity to the concessions tenants and enabling future growth of the food service business within the CTE. The project required significant utility coordination and close coordination with multiple tenants.

> Design Team:     OAC, Lerch Bates, SRG Partnership Inc., Sparling, CDi and Sazan Group
> Contractor:         Pease Construction


Aero Phase 1 – Main Terminal
This project entails work on 20 elevators and 4 escalators in the main terminal. Design includes the complete modernization of seven 50-year-old elevators and oil cooler upgrades to other existing hydraulic units. Extensive site surveys were required along with tight coordination with the Port Infrastructure and Operations groups.


Aero Phase 2 – South Satellite
This project includes the design of 2 new elevators, and the modernization of 2 existing elevators at the South Satellite. The addition of the new elevators required the relocation of the TSA checkpoint outside of the US Customs Federal Inspection Services area. The design of the new elevators and relocated checkpoint solved two key operational challenges within the facility: (1) accessible vertical circulation with redundancy and (2) streamlined processing and wayfinding within the TSA checkpoint.

> Design Team:     OAC, Lerch Bates, SRG Partnership Inc., Suehiro Architecture, Sparling Sazan and CDi
> Contactor:           TBD


Concourse C Sloped Walkways 
This project added external sloped walkways and passenger elevators at Gates C2, C12 and C14 on Concourse C. As part of Alaska Airlines Group (AAG) Northstar project, their regional carrier, Horizon Airlines, was expanding their existing operations on Concourse C, driving the need for improved passenger mobility. OAC’s team worked closely with AAG and the Port to design transparent weather protected glass enclosures wrapping the sloped walkways and new elevators at each gate. The new walkways are easy to navigate and significantly upgrade the passenger experience for Horizon Airlines.

> Design Team:     OAC, Lerch Bates, SRG Partnership Inc., Sparling, Sazan and CDi
> Contractor:         TBD

Project Photos

sea-tac airport

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OAC has a history of success with specialized design and construction because we love what we do. We serve our clients as collaborators, and we design and manage projects that improve where people live, work, learn and play. Because of this, we’ve gathered a superlative staff of professionals who share our core values, and our vision – do what we love in the service of people who love what we do.