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Project Update |
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We're Upgrading Curve Warning Signs

As technology improves and cars evolve, so does how they perform when going around curves. This is one of the reasons we have a few projects to look at curve warning signs along our highways.
We are reviewing corridors to determine if signs meet the national standards and to increase sign visibility for curves that have had crashes in the past. As part of this work we will:
- Replace existing and install new signs. In some cases the advisory speed could change to meet current criteria.
- Remove signs no longer needed. This occurs when the posted speed is the same as the recommended speed for safely driving around a curve.
- Make signs larger and/or add more signs on curves that have had reported crashes in the past. The goal is to increase awareness so that drivers notice and react to the curve in the road by slowing down.
This year we're installing signs on:
Coming up in late 2026 or 2027, we'll also install signs on OR 202, OR 53, OR 131, OR 229, U.S. 20, OR 223 and OR 194.
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If you're driving through one of our curve warning sign work zones, you can expect:
- Crews working during the day or night.
- Construction noise and delays.
- Shoulder and lane closures.
- Flaggers helping direct traffic as needed.
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 Learn more about curve warning signs
What does a curve warning sign mean?
Curve warning signs give drivers an advance notice of upcoming curves in the road and how fast you should drive through them.
Why are we upgrading or installing new curve warning signs?
Installing signs can help reduce fatal and serious roadway departure crashes at horizontal curves. They help driver's be more aware of when the road will change directions. This awareness can help reduce the amount of crashes caused by drivers leaving the road. Road departure fatalities account for about two thirds of Oregon fatalities. They are also a cost-effective approach to reducing road departure crashes.
Want to learn more?
Watch this video to find out why we're doing these projects, the history of curve warning signs and more!
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Check out what we're building in and around your community!
See what else is being constructed on the roads around your community by visiting our webpage. Explore our interactive map to see what we're working on!
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Pay attention in the work zone, slow down and move over – imagine this is where you work! Always drive safely, watch for construction signs and workers.
Remember that fines double in all Oregon work zones, whether workers and signs are present or not.
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Translation/Interpretation Accommodations
For ADA Title II or Civil Rights Title VI accommodations, alternate formats, translation/interpretation services or for additional information call TTY (800) 735-2900 or use the statewide Oregon Relay Service: 7-1-1.
Si desea obtener información sobre este proyecto traducida al español, sírvase llamar al TTY (800) 735-2900.
We do not discriminate on the basis of disability in admission or access to our programs, services, activities, hiring and employment practices. ODOT is an EEO/AA Employer.
Know Before You Go!
For 24/7 road conditions and traffic alerts visit TripCheck.com or call 5-1-1.
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Starting May 7, you’ll need federally accepted ID. Be REAL ID ready.
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