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Southern Oregon Seismic Triage & Resiliency Project

Construction Phase

Region 3: Southwestern Oregon, Region 4: Central Oregon (Ashland, Central Point, Eagle Point, Glendale, Grants Pass, Medford, Roseburg, Talent, Douglas, Jackson, Josephine, Klamath)

​​​​​​​​​​​​​​​​​This project reinforces key slopes and bridges in southern Oregon. The goal is so the southwest Oregon region can remain connected and recover after a major earthquake.​​


Traffic Impact

​Depending on the bridge or slope being worked on there will either be no delays, short delays or full closures with some out of direction travel. 

Construction Impacts

​Depending on the bridges and phases of construction, there may be a variety of impacts, such as single lane closures or full closures with some out of direction travel.

Meetings and Events

An open house was held October 20 in the area of Hillcrest Road for area neighbors and interested community members. 

Regular scheduled meetings between ODOT and the contractors occur weekly. 


Bundle #1: 
  • Work will be on Hillcrest Road beginning Oct. 31, 2023 thru May 15, 2024.​
Local traffic will see a full closure of Hillcrest Road during this construction time frame. A detour will be designated using 10th Street, Savage Street to Beacon Drive.

The full closure is required due to narrow width of Hillcrest Road. 

Other Bundle 1 Construction:
  • Improvements on I-5 Exit 58 are complete.
  • Improvements on Leland Road bridges at Sunny Valley are complete. 
  • Improvements on I-5 Exit 80 Glendale bridges are complete.

Bundle #2:
This Bundle is complete.

B​undle #3: 
This project is scheduled to begin in November 2023. 

It replaces three bridges on OR 99 (Rogue River Highway) between City of Rogue River and the I-5 Exit 45A interchange.  They are Foots Creek, Birdseye Creek and Millers Gulch Bridges.

Slopes: ~ scheduled to begin spring of 2024.

Repairs include rock buttress, anchors, retaining walls and drainage improvements. 
They are located at:
  • Interstate 5 in Jackson County at MP 5.2, MP 10.3.
  • Oregon 140, east of White City at MP 22.1.



This project reinforces unstable slopes and vulnerable bridges in southern Oregon. By doing so the region can begin recovery efforts and maintain lifeline routes after a Cascadia Subduction Zone earthquake.


I-5 |
  • Interstate 5 from Medford/Ashland north to Eug​ene.
  • Oregon 140 between Medford and Klamath Falls.​
  • Sutherlin Creek Bridge on Del Rio Road in Douglas County.

Cost and Funding

Instead of one large project, this project is split between slopes and bridges for cost efficiencies. $~53 million is earmarked for this project by the 2017 Keep Oregon Moving act passed by Oregon Legislature. Other funding has been secured for this project as well.


  • ​H.P. Civil of Stayton is the contractor for the first bundle of bridges.
  • Carter and Company of Salem is the contractor for the second bundle of bridges.
  • Carter and Company of Salem is the contractor for the third bundle of bridges.


Southwest Oregon residents and their economy will benefit from this project by recovering as quickly as possible after a subduction zone earthquake.

Lifeline routes are being strengthened so freight and recovery materials can be transported in and out of southwest Oregon. It's anticipated there may be future bridge reinforcement projects.

Triage is in the title of this project because it takes the easiest, least expensive slopes and bridges to repair and hopefully maintain critical connections after a major earthquake.

What Problem Will This Improve?

​​This project will make southern Oregon/Rogue Valley more resilient prior to a seismic event, including a Cascadia Subduction Zone earthquake.

Additional Information

Contacts & Media


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Project Contacts

Public Information Officer
Mary Elizabeth Dillinger

Resident Engineer - Consultant Projects
Josh Lonie

Last Updated

10/25/2023 12:51 PM

Project Number


Project Documents

Related documents to this project
Slopes.jpgSlopes to be stabilized
Seismic Bridge R3.pdfA graphic map showing the bridges to be replaced or retrofitted