homeWelcome, sign in or click here to subscribe.login
     


 

 

Construction


print  email to a friend  reprints add to mydjc  

January 27, 2020

Best in state: Gold award
Successful Fulfillment of Client/Owner Needs

Otak

Photo provided by Otak
Work for the Swift Green Line included construction of 33 bus shelters, and roadway and queue-jump improvements.

Project: Swift Green Line
Client: Community Transit

The new Swift Green Line bus rapid transit service serves a customer base that was previously untapped. It is the first high-capacity, east-west crossing of Interstate 5 in Snohomish County, and connects Paine Field/Boeing Manufacturing and Industrial Center to the Canyon Park Regional Growth Center.

As prime consultant, Otak led the team that completed design and permitting and provided construction engineering support for Community Transit’s newest bus line. Work included construction of 33 bus shelters, and roadway and queue-jump improvements.

Due to the project’s location within a highly congested urban corridor, one challenge was minimizing the impacts of construction requirements for night work immediately adjacent to residential zones. From the beginning, Community Transit and the Otak team worked closely with the jurisdictions along the corridor to build strong support for the project and develop interagency agreements. The team worked with each jurisdiction to identify any construction work items that could occur during daytime hours while minimizing traffic impacts and avoiding peak travel times.

In addition, the owner and the Otak team developed a noise-mitigation program for the project. This program included regular visits to adjacent properties throughout construction to provide detailed construction information to business owners, tenants and residents, and to offer mitigation measures such as white noise machines.

Throughout the design process, the Otak team closely monitored the estimated construction costs for the project to ensure the proposed improvements could be completed within the project budget. Project funding availability and the implementation schedule also did not allow for construction of dedicated transit lanes throughout the entire corridor.

In order to honor the need for transit speed and reliability throughout the corridor, the project team worked with the owner and the permitting jurisdictions to find cost-effective solutions to move Swift vehicles effectively through the corridor. These improvements included eastbound and westbound approach widening and queue-jump improvements at the 128th Street overcrossing of Interstate 5, and the addition of queue-bypass lanes at three other key congested intersections.


Other Stories:



Email or user name:
Password:
 
Forgot password? Click here.