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SR 6 - Rock Creek Bridge - East Bridge Replacement

Status: Design
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Related projects in this area:
SR 6 - Rock Creek Bridge West


Nov. 2016

  • Traffic is moving across the new bridge and the speed limit has returned to 55 mph.
  • In Feb. 2015, contractor crews poured 200 cubic yards of concrete for the bridge deck.
  • In Dec. 2014, contractor crews installed six massive concrete girders for the new bridge, (video).
  • Construction began in late March.
  • We awarded the construction contract to Scarsella Bros. Inc. on Feb. 3, 2014.

This project helps improve safety and mobility by replacing the existing SR 6 Rock Creek East Bridge west of Pe Ell with a new, wider structure that will have 12-foot lanes and 6-foot shoulders.

The intersection of McCormick Creek Road will also be reconstructed to accommodate larger vehicles and easier right turns.

Why is WSDOT replacing this bridge?
The existing concrete bridge was constructed in 1924.

The aging bridge is too narrow to accommodate the types or number of vehicles that need to cross it today. It also does not meet current federal seismic, flood, or structural standards.

The End Result
A wider, safer bridge that accommodates today’s traffic and meets current federal seismic, flood and structural standards.

Project Benefits

  • Safety: Constructs a wider roadway, and installs concrete barrier and new bridge railings. Helps the bridge better withstand earthquakes and flooding.
  • Mobility: The wider structure allows traffic to flow smoothly across the bridge without delay.

What is the project timeline?

  • March 2010: Design began 
  • Summer 2011: Right-of-Way Acquisition begins.  
  • Winter 2013: The project was advertised to contractors.
  • Feb. 3, 2014: Construction contract awarded to Scarsella Bros. Inc. 
  • March 2014: Construction scheduled to begin.
  • Fall 2015: Construction scheduled to be complete.

Financial Information

2005 Gas Tax (TPA): $8.1 million

How can I get more information?
Area Engineer Devin Reck
WSDOT Chehalis Project Office
1411 Rush Road
Chehalis, WA 98532
Phone: 360-740-8600, or toll-free 1-866-713-2412


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

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