Oregon Oversize & Overweight Permits

When Oregon needs a permit

Over 8'6" wide, 14' high, or 80,000 lb, you need an ODOT over-dimension permit (ORS 818.225; OAR 734-082). Single-trip oversize starts near $8; overweight adds a per-mile Road Use Assessment Fee. Oregon runs civilian pilot cars with certified flaggers, not state police. Move in daylight only. Summer overwidth runs Monday-Thursday to 11 a.m. and 6 p.m. to dusk, Friday mornings only, and six holidays are full blackouts.

Thresholds, escorts, and curfews

• Legal max before a permit: Permit needed over 8'6" wide, 14' high, or 80,000 lb; also for over-length combinations beyond the legal length.
• Escort / pilot car: Oregon uses civilian pilot cars with certified flaggers, not state police. One car covers width (front, or rear on multilane highways); front and rear when two are required. Thresholds are set on the permit, and loads over 14'6" high trigger an overheight pole car.
• Superload: Superload over 16' wide (14' on a two-lane state highway), 17' high, or 150' long. It moves under engineering review and a route survey through the ODOT Commerce and Compliance Division, not a same-week single-trip permit.
• Travel curfew: Daylight only, a half hour before sunrise to a half hour after sunset. In summer (Memorial Day through Labor Day) overwidth runs Monday-Thursday from daylight to 11 a.m. and 6 p.m. to dusk, with Friday mornings only. Six holidays are full blackouts (New Year's, Memorial Day, Independence Day, Labor Day, Thanksgiving, Christmas). Over-length loads above 105' shut down from noon the Wednesday before Thanksgiving to sunrise the Monday after.
• Permit fee: Single-trip oversize starts near $8. Overweight is a small variance fee plus a per-mile Road Use Assessment Fee (RUAF) drawn from ODOT's published GVW x axle-count rate table times Oregon route miles. Continuous/annual permits are available for repeat runs.

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