Title: I-5 - JBLM Area Improvements - Congestion Relief Study | WSDOT
Headings: I-5 - JBLM Area Improvements - Congestion Relief Study
I-5 - JBLM Area Improvements - Congestion Relief Study
Why is there so much congestion?
What is WSDOT doing about it?
Implementation characteristics that were evaluated and scored include:
The proposed future phase would include:
Build Alternative & Environmental Studies
Why are studies needed?
What will the completed study include?
Cost Estimate
What is happening in the mean time?
Financial Information
How can I get more information?

Content: The task of the planning study is to define improvements that could relieve congestion on I-5 from Center Drive to Gravelly Lake Drive, with a focus on the interchanges at the Steilacoom-DuPont exit (#119), 41st Division Drive/Main Gate exit (#120), Berkeley Street exit (#122) and the Thorne Lane exit (#123). Specifically, the study addressed options to: relieve congestion on I-5
improve system efficiency
enhance mobility
improve safety and operations
increase transit and alternative commute opportunities
This work was performed in three phases. Phase 1 conducted a Corridor Feasibility Study. You can read the full report and the summary report linked below: I-5 JBLM Vicinity IJR and Environmental Documentation Phase 1 Corridor Plan Feasibility Study (pdf 17.19 mb)
I-5 JBLM Vicinity IJR and Environmental Documentation Phase 1 - Summary Report (pdf 6.68 mb)
During Phase 2, conducted in 2014, WSDOT conducted a comprehensive multi-modal corridor alternative analysis. In this effort, WSDOT evaluated alternatives other than adding lanes to I-5 that could improve mobility along the corridor. Public involvement was an important element of Phase 2. In January 2014, WSDOT conducted an origin-destination study. The origin-destination study better identified the nature of local trips and regional traffic on and near Interstate 5 between Mounts Road and State Route 512.