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US101/OR6 Traffic Improvement Project

About the Project

ODOT, in cooperation with the City of Tillamook and Tillamook County, is improving traffic performance and safety of US 101 and OR 6 through downtown Tillamook and across Hoquarton Slough. The narrow streets that these highways use were not designed to safely carry the large volume of traffic – particularly truck traffic – moving through Tillamook today.

The project passed a milestone in July of 2012 when the Stakeholder Advisory Committee and Project Management Team unanimously recommended a preferred design which was accepted by ODOT. The project will lengthen the US 101 couplet to the Hoquarton Slough by extending Pacific Avenue north beyond 1st Street and replacing the existing slough bridge with a new four-lane bridge. The new bridge will be up to 5 feet higher than the existing bridge. The project will also widen the travel lanes on Main and Pacific Avenues from 1st to 4th Streets. Turn lanes will be added at key intersections through town.

Construction has now begun. Construction has been funded as part of the State’s Jobs and Transportation Act of 2009. ODOT will continue to involve the public as the project moves forward during the design and construction phases.

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Latest News

Chamber of Commerce Project Update
August 17, 2017


  • No construction during eclipse weekend (Friday-Tuesday)
  • Lots of night work
  • Lane closures for paving
  • Filling of bioswale pits
  • Work starts on 3rd and Main in front of Sunflower Flats- Sunflower Flats remains open.

Hello Tillamook,

The rest of August is dedicated to finishing touches on Pacific Ave., focusing on finishing curbs and sidewalks, drainage details, grading, paving, and striping. Expect lane closures on Pacific the next few weeks and lots of night work the rest of the month as crews scurry around to make up for time lost as they step away this Friday through next Tuesday in an attempt to clear as much space as possible for highly anticipated eclipse traffic.

The priority is to finalize paving on Pacific from 4th St. all the way over the new bridge in preparation for the fall transition that will bring the demolition of the old bridge. That will mean another change in traffic patterns, which will be released around Labor Day. In the meantime, please continue to drive carefully and attentively through the construction area, watching for lane closures.

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Major traffic switch planned for Tillamook Project starting Friday morning
August 1, 2017

TILLAMOOK—A major traffic shift is scheduled to occur on the U.S. 101 at OR 6 Tillamook Project starting Friday morning, August 4 at 6 a.m.  Motorists traveling through the construction zone will want to slow down and proceed with caution as they get used to the new configuration. 

The traffic changes are as follows:

  • Northbound U.S. 101 traffic will use the new extension of Pacific Avenue north of 1st Street (OR 6).  Currently, northbound U.S. 101 traffic uses Main Street and is diverted to the east half of the new bridge. Travelers will no longer be able to turn north at 1st and Main;
  • Westbound OR 6 traffic heading north will turn right at Pacific Avenue;
  • Northbound U.S. 101 traffic will cross OR 6 and continue north; and
  • Eastbound OR 6 traffic heading north will need to use 3rd Street and turn left onto northbound U.S. 101.

This is not the permanent traffic pattern. The traffic shift was planned and is part of the staged construction.  The three-year project is on schedule to be completed in the fall of 2018.

See map for reference.

For more information: Lou Torres, 503-986-2880,  louis.c.torres@odot.state.or.us

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Project Information

Project Information Paper

Project News, May 2017

Finished Project
Conceptual Renderings