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SR 9 - Pilchuck Creek Bridge Replacement


April 2014

  • Contractor crews have completed pouring the concrete bridge deck and are working on the bridge approaches.
  • The project is on schedule.
  • The roadway alignment has been slightly changed near the old bridge to reduce impacts during construction. The majority of work is being done without delays for drivers.
  • Please be aware of the 45 mph construction zone speed limit and the 25 mph curve advisory speed limit in place for the duration of construction.
  • The project should be complete this summer.
  • You can view pictures of the old bridge and  preliminary design of the new roadway alignment.

We will replace the single-lane Pilchuck Creek Bridge in north Snohomish County on SR 9 and realign the road to improve sight distance.

Why is WSDOT replacing the Pilchuck Creek Bridge?
Of the 3,600 state-owned bridges in Washington, the Pilchuck Creek bridge is one of the oldest - built in 1916. At just 17 feet wide, the single-lane bridge is too narrow for modern safety and traffic standards. Yield signs on either end of the bridge let drivers take turns crossing it.

The SR 9 corridor in Snohomish County is the focus of major improvements. The corridor is the only alternative to I-5 and serves a number of rapidly growing communities.

The End Result
The new bridge will have two lanes (one in each direction) and shoulders, and it will improve safety and better meet the growing traffic demands of the area. We will realign the roadway to reduce the sharp curves and improve sight distance

Project Benefits
Safety: Replacing the single lane bridge with a wider, two-lane bridge that has shoulders will help improve safety and relieve congestion along the SR 9 corridor.

The roadway will be realigned to improve sight distance. Building the bridge on a new alignment will also allow us to keep the old bridge open during construction.

What is the project timeline?

  • We began construction in May and expect to complete the project by summer 2014.
  • The project was awarded to Granite Construction.

Financial Information

Financial Data for PIN 100934R
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $14,655
Pre-Existing Funds (PEF) $1,186
Total $15,841

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

How can I get more information?
Dave Crisman
WSDOT Project Engineer
Phone: 360-848-7103

Kris Olsen 
WSDOT Communications
Phone: 206-440-4704

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