Oregon Oversize & Overweight Load Regulations: A Complete Guide
Important: We are not a permit service and we do not arrange permits for carriers. All information provided below is for informational purposes only. Always read permits and provisions carefully as we cannot guarantee the accuracy of information provided below.
Transporting oversized loads in Oregon requires careful planning to comply with statewide load regulations and heavy haul transport rules. Whether you’re moving large equipment or managing specialized transport services, understanding Oregon’s oversize permits, weight limits, and escort requirements is essential for smooth operations.
Permit Details & Operating Hours
- Oversize Permits: Valid for 10 days and must be secured before entering Oregon.
- Operating Times:
- Labor Day to Memorial Day: 30 minutes before sunrise to 30 minutes after sunset, seven days a week.
- Memorial Day to Labor Day: Weekend travel is restricted. Saturday only until noon, with no Sunday moves (exceptions apply for loads under 14 feet wide on certain highways).
- Night travel allowed: Up to 10 feet wide on approved “green” routes and up to 12 feet wide on Interstates.
Restricted Travel & Urban Curfews
- No Oversize Travel: Over 12 feet wide during peak hours (7–9 AM and 3–6 PM) in major cities (Portland, Salem, Eugene, Grants Pass, Medford).
- Interstate Restrictions:
- I-5 in Portland (WA line to OR 217) and Medford (Exits 24–33) have additional curfews for loads over 14 feet wide.
Legal Dimensions & Weight Limits
Standard Limits:
- Length: 53′ semitrailer (longer trailers allowed only if stretchable when loaded).
- Maximum Length: 60′ on designated Group 1 routes.
- Width: 8’6″.
- Height: 14′.
- Weight: 80,000 lbs gross.
- Single Axle: 20,000 lbs.
- Tandem Axle: 34,000 lbs.
Routine Permit Limits:
- Width: Up to 16′ (subject to route approval).
- Height: Varies by route.
- Weight:
- Single axle: 21,500 lbs.
- Tandem axle: 43,000 lbs.
- Steer axle: 13,200 lbs max (based on tire width).
Superloads (Requiring Extra Approval)
- Over 16′ wide (Interstate) or 14′ wide (2-lane roads).
- Over 17′ high or 150′ long.
Escort & Pilot Vehicle Requirements
Interstate & Multi-Lane Highways:
- Width: Over 14′ – 1 escort; over 16′ – as specified by permit.
- Length: Over 120′ – 1 escort; over 140′ – additional escorts required.
- Height: Over 14’6″ – 1 escort.
2-Lane & Secondary Routes:
- Width: Over 9′ – 1 escort; over 14′ – 2 escorts.
- Length: Over 95′ – 1 escort; over 120′ – 2 escorts.
Miscellaneous Rules
- Annual Permits: Available for 48′ trailers on select routes (e.g., Highway 395 & 25).
- Dozer Transport: Blades can be detached and hauled separately if needed to meet weight compliance.
Signage & Lighting
- Signage: “Oversize Load” signs required (front & rear).
- Reflective Markings: Needed for night moves.
- Flags: On widest points & amber/red lights for visibility.
- Rear Overhang: Over 4′ must be flagged or lit.
Key Takeaways for Heavy Haul Logistics
- Plan routes carefully to avoid urban curfews.
- Check permit requirements early—superloads need extra approval time.
- Ensure proper escorts based on load size.
- Follow safety signage rules to avoid violations.
Conclusion
By understanding Oregon’s oversize freight solutions, weight compliance, and pilot vehicle requirements, you can streamline heavy haul project management and keep shipments moving efficiently.