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U.S. 101 Improvements

Construction Phase

Region 2: Willamette Valley and Northwest Oregon (Seaside, Clatsop)

​​​Widen the roadway to install bike and pedestrian improvements then repave from Avenue A to Avenue K.

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Traffic Impact

None at this time on U.S. 101, local streets are impacted.

Construction Impacts

You can expect:

  • Construction noise.
  • Shoulder and lane closures with flagging. Lane closures will be at night, 7 p.m. to 7 a.m., Sunday – Friday, when needed. 
  • Delays.
  • Work  will happen during the day and at night.

We estimate completing the project in 2023.

Construction Activities

Work is being done on the local city streets by both us and the City of Seaside to replace a sewer line and install new drainage lines.

​Pedestrians, including those with disabilities, will have access through or around work zones.  ​



The project includes widening U.S. 101 through Seaside from Avenue A through Avenue K.  Widening the road will allow us to create a center turn lane, bike lanes, and sidewalks to improve mobility for all road users. 

The project will:
  • Install new center turn lane.
  • Improve bicycle and pedestrian facilities.
  • Install two enhanced crosswalks with a median refuge Island, pedestrian activated flashing lights and advanced warning striping for cars to stop. They will be located:
    • North of Avenue B.
    • South of Avenue F.
  • Install new curb ramps to ADA standards.
  • Upgrade traffic signs.
  • Improve drainage.
  • Replace pavement and install new striping.​​


Design through 2021
Construction: 2022 - 2023


U.S. 101 |

​Milepost 21.10 - 21.49

Cost and Funding

​$10.7 million (Design and Construction)

Contacts & Media

project area map

Project Contacts

Resident Engineer
Jayson Buchholz

Public Information Officer
David House

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Last Updated

1/4/2023 9:47 AM

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