Overview
This project will improve safety and mobility in the east Clark County area by constructing a new I-205 northbound off-ramp and southbound on-ramp at NE 18th Street.
Stage 1 will construct a segment of a new off-ramp that will eventually connect I-205 to NE 18th St., and will be included with the construction of the I-205 - Mill Plain - NE 112th Connector project, which began construction in June 2008.
Stage 2 will construct a partial interchange at I-205/NE 18th St., and will include a system of grade- separated on and off-ramps between Mill Plain Blvd and NE 18th St.
Why is WSDOT
building this project?
Existing travel demand, for both regional bi-state travel and local access, currently approaches or exceeds the capacity of the interchanges along I-205. The volume of traffic along I-205 mainline, coupled with vehicles entering and exiting I-205 results in traffic backing up onto I-205 from the existing access locations, which account for many of the accidents.
This project will improve safety by reducing weaving between the exits, help ease congestion by alleviating the traffic back ups now experienced on the existing I-205 on and off ramps, and increase or maintain the level of service along I-205 between Mill Plain Boulevard and SR 500.
Our Partners
The city of Vancouver has been collaborating with WSDOT in its development, design and construction.
The End Result
This project will construct a new partial interchange on I-205 at NE 18th Street and a system of grade-separated on-and-off ramps between Mill Plain and NE 18th Street.
Project Benefits
- Congestion Relief: When completed, the new access to NE 18th Street will reduce delays around the intersection of Mill Plain Boulevard and Chaklov Drive and at the I-205 northbound off-ramp to Mill Plain Boulevard. This project will also alleviate some of the weaving problems between SR 14 and Mill Plain by providing another on/off option to the existing Mill Plain Boulevard ramps.
- Safety: This project will help reduce rear-end-type accidents on the I-205 northbound off-ramp to Mill Plain Boulevard, which has been identified as a High Accident Location.
What is the project timeline?
- 2006: Preliminary engineering, public outreach, design and environmental work began.
- 2008: Construction on the first stage of this project, in addition to construction of the I-205/Mill Plain (112th Connector) project, begins.
- 2014: Construction on the second stage of I-205/Mill Plain Interchange to NE 18th Street - Build Interchange is scheduled to begin.
Financial Information
The current plan separates the corridor project into two stages to efficiently deliver each in conjunction with the I-205 Mill Plain corridor project.
2005 Legislative Transportation Partnership Funding Package: $11.1 million (The first stage of this project - I-205, Mill Plain Interchange to NE 18th Street)
2005 Legislative Transportation Partnership Funding Package: $86 million (The second stage of this project - I-205, Mill Plain Interchange to NE 18th Street - Build Interchange)
Total Estimated Project Cost: $97.1 million
How can I get more information?
Contact:
Area Engineer Leon Winger
WSDOT Vancouver Area Office
PO Box 1709
Vancouver, WA 98668-1709
11018 NE 51st Circle
Vancouver, WA 98682-6686
Phone: 360-905-1500
E-mail: swVanc@wsdot.wa.gov
or
Communications
WSDOT Southwest Region
PO Box 1709
Vancouver, WA 98668-1709
11018 NE 51st Circle
Vancouver, WA 98682-6686
Phone: 360-905-2058
E-mail: SWWebInfo@wsdot.wa.gov
or you can use our information request form.
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