WSDOT is improving visibility on I-90 in strategic areas along the 15-mile corridor. View larger map.
Crews plan to install solar-powered LED lane markers on I-90, similar to this picture, to define lanes and shoulders.
- WSDOT received a federal grant to install solar-powered LED lane markers on I-90 over Snoqualmie Pass.
- Installation is scheduled to start summer 2014.
One of the challenges of operating and maintaining
I-90 over Snoqualmie Pass is being able to keep lane markings from fading.
In addition to rain and snow obscuring visibility, heavy
wear from snow removal operations, studded tires,
and vehicles with chains shorten the life of the
Winters on Snoqualmie Pass are severe with an average of 453 inches of snow fall each year.
Why is WSDOT
installing solar-powered LED lane delineators on Snoqualmie Pass?
WSDOT hopes to improve visibility over Snoqualmie Pass
by installing solar-powered LED lane markings and high visibility reflectors on shoulder and median barrier located in strategic locations along a 15-mile stretch of I-90. The LED lane markers will enhance roadway stripes and other roadway delineation.
This pilot project will be the first to utilize solar-powered LED lane markers on a large scale in the state.
The End Result
The LED lane markers will enhance visibility, provide better guidance between lanes, shoulders and barrier and reduce the risk of collisions.
WSDOT will conduct a customer satisfaction survey before and after the installation of the lane markers.
Safety. Improve visibility for drivers traveling over I-90 Snoqualmie Pass.
What is the project timeline?
- Summer 2014 - contract to install LED lane markers and barrier reflectors begin.
- October 2014- enhanced delineation installed and operational.
This project is funded by a Federal Highway Administration Highway for Life grant and the gas tax.
How can I get more information?
Julie Heilman-Suarez, WSDOT Project Engineer
Meagan McFadden, WSDOT Communications
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