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Budget Information

SR 105 - North River and Smith Creek Bridge Replacements


Oct. 2014

  • This week's traffic impacts 
  • The new bridge structures are complete.
  • Planting of vegetation will be completed in fall, 2014.
  • The speed limit on SR 105 has returned to 55 mph.

This project will replace the existing SR 105, North River and Smith Creek bridges, and straighten a curved section of the highway to make SR 105 easier to navigate. The new 36-foot-wide structures will consist of two 12-foot-wide lanes and six-foot-wide shoulders.

The new bridges will help improve safety and increase mobility on SR 105 along Willapa Bay between Raymond and Tokeland.

During construction, crews will build a temporary one-lane bridge over Smith Creek, just west of the existing road, while they build a new bridge on the existing highway alignment. The North River Bridge will remain in use throughout construction while crews realign the highway and build the new bridge.

Why is WSDOT constructing new bridges on SR 105?
The existing bridges were constructed in 1959 of timber trestles.

The bridges are aging and too narrow to accommodate the types or number of vehicles that need to cross them today. They also do not meet current federal seismic, flood, or structural standards.

WSDOT is replacing the existing structures with new bridge spans built of concrete girders. The new bridges will enhance safety and increase mobility on this portion of the Pacific Coast Scenic Byway.

The End Result
Wider, safer bridges that accommodates today's traffic and meets current federal seismic, flood and structural standards.

Project Benefits

  • Safety: Improves safety and drivability by constructing a wider roadway, and installing concrete road barriers and new bridge railings.
  • Mobility: Provides a wider structure for motorists and allows traffic to flow smoothly across the bridges without delay.
  • Environmental: Removes approximately 295 creosote treated timber piles from the creek and restores an estimated 319 square feet of streambed.

What is the project timeline?

  • 2006: Preliminary design and environmental documentation began.
  • Spring 2011: Right-of-Way Acquisition process began.
  • Fall 2011: Design work and Right-of-Way Acquisitions completed.
  • Spring 2012: Project advertised to contractors.
  • Fall 2012: Construction began.
  • 2014: Construction scheduled for completion.

Financial Information

Financial Data for PIN 410510A, 410510B
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $3,056
Pre-Existing Funds (PEF) $19,954
Total $23,009

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

How can I get more information?
Area Engineer Lori Figone 
WSDOT Kelso Area Engineering Office
2400 Talley Way
Kelso, WA 98626
Phone: 360-442-1341, or toll free 1-800-545-1393

Bart Treece
WSDOT Communications
11018 NE 51st Circle
Vancouver, WA 98682
Phone: 360-905-2058

or access our project feedback form.

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