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US 12 - Anderson Rd to Moon Rd - Safety Improvement


May 2017

  • WSDOT would like to thank everyone who attended the August 2016 open house concerning proposed improvements for the intersections of US 12 and Anderson Road and Moon Road.
  • We'd appreciate hearing from you! Send questions or comments here.

Why is WSDOT planning changes to the intersection of US 12 and the Anderson/Moon Road?
WSDOT is exploring alternatives to reduce the potential for collisions at the intersection of US 12 and Anderson Road as well as the nearby intersection of US 12 and Moon Road.

Anderson Road
A proposal from WSDOT would build a modern roundabout at this location. Unlike building a new traffic signal, a modern roundabout offers a cost-effective traffic solution that helps keep traffic moving.

Modern roundabouts are built to accommodate large vehicles including emergency vehicles, buses, and truck and trailer combinations.

WSDOT has been using roundabouts on a number of Washington highways since 1997.

Moon Road
In order to help reduce the potential for t-bone or rear-end collisions, WSDOT is proposing new features that would change in the way drivers access this intersection. Crews would build a small loop road that allows drivers to make U-turns instead of turning left directly on or off the highway.

The End Result
WSDOT will construct the final plan for the intersections based on collision analysis, feedback received from the community, and available funding.

Project Benefits
The goal of this project reduce potential for collisions and bolster traffic flow at both intersections.

What is the project timeline?

  • Aug. 2016 - WSDOT open house
  • Summer 2017 - Project advertised for competitive bidding
  • Fall 2017 - Construction begins
  • Fall 2018 - Project complete

Financial Information

Financial Data for PIN 301201G
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $3,018
CWA $0
Total $3,018

Project signage will reflect the cost of construction engineering, project bid award and sales tax.

How can I get more information?
John Romero
WSDOT Project Engineer

Claudia Bingham Baker
WSDOT Communications

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