Project Info

SR 501 - 26th St Ext Vicinity to End of Road - Chip Seal - Complete September 2017

Why is WSDOT resurfacing the roadway on State Route 501 between 26th Street and the end of the highway in Clark County?
Sections of the highway are showing signs of deterioration such as cracking and rutting. Crews will resurface the highway using hot oil chip seal. This work is needed now to preserve the road for the next several years.

What is a Chip Seal?
Chip sealing preserves the integrity and life of deteriorating roadway by applying a Bituminous Surface Treatment (BST) seal coat of oil and gravel (chips) to the existing pavement. Restoration is necessary before the underlying road structure is damaged, requiring a much more expensive rebuild.

What should people expect?

  • People who drive and bike this stretch of roadway will alternate through a single lane of the highway daily during daytime hours.
  • The speed limit through the area will be temporarily reduced from 55 mph to 35 mph.
  • During the chip seal process there will be loose gravel on roadway. As with any highway construction project, motorists should exercise caution driving through work zone.

The End Result
In addition to providing drivers a smoother ride, this project helps preserve the roadway extending its useful life.

Project Benefits

  • Preserves our highway infrastructure and extends the life of the roadway.
  • Reduces the need for costly emergency maintenance repairs and unexpected closures.

What is the project timeline?

  • Spring 2017: Project goes to competitive bidding
  • Summer 2017: Construction scheduled to begin
  • Fall 2017: Construction scheduled to be completed


  • Final total cost of this project $1.1 million.


How can I get more information?

Joanna Lowrey
WSDOT Project Engineer
360-442-1350 or toll free 1-800-545-1393


Tamara Greenwell
WSDOT Communications
Phone: 360-905-2056