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SR 503 - 4th Plain/ SR 500 Intersection - Add right turn lane

Crews added a right turn lane from southbound SR 503 to westbound Fourth Plain, easing congestion and improving safety for motorists and pedestrians.

Crews also installed median curb SR 503 between Fourth Plain and NE 65th Street to help reduce traffic conflicts from vehicles turning across multiple lanes of traffic between two closely spaced intersections.

How You Benefit
Cross GlyphImproves Safety
Improves safety by reducing rear-end type collisions on southbound SR 503 and sideswipe-type collisions on Fourth Plain Road.
Car GlyphRelieves Congestion
Decreases congestion by adding a right turn lane from southbound SR 503 to Fourth Plain Road. The turn lane allows drivers to make a right turn while through traffic is stopped at the intersection.

Partnerships & Cooperation
At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of the National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan. This project did not impact any tribal resources since the work was entirely above ground on existing WSDOT right of way. For more information visit our WSDOT Tribal Liaison website.

WSDOT makes every effort to assess and minimize environmental impacts from our projects. A detailed analysis of the project’s environmental impacts was completed as part of the environmental documentation and environmental permitting processes. For environmental information specific to this project, please contact Barb Aberle at (360) 905-2186, or e-mail


2005 Gas Tax (TPA): $650,000
Pre-Existing Funds: $8,000
Total funding available: $658,000

Contact Us
Area Engineer Leon Winger
WSDOT Vancouver Area Office
P.O. Box 1709
Vancouver, WA 98668-1709
11018 NE 51st Circle
Vancouver, WA 98682-6686
Phone: 360-905-1500, or toll-free at 1-866-725-9669


WSDOT Southwest Region
PO Box 1709
Vancouver, WA 98668-1709
Phone: 360-905-2058

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