Oregon Oversize Permits

Data confidence: Medium. We could not fully corroborate every figure on this page against a primary official source. Treat these numbers as a starting point and confirm with the permit office before you plan a move.
Legal limits, 174 in height-pole escort rule, superload thresholds, holiday blackouts, ORION portal, MCTD phone confirmed from official oregon.gov/odot pages and May 2026 Pilot Car Guide. Medium because Oregon makes pilot-car width triggers and travel hours ROUTE/DISTRICT-specific (via Route Map 2) rather than single statewide numbers, so escort width fields nulled and night/weekend booleans are conservative defaults; escort_notes gives practical defaults. legal_max_length_ft 60 combination-including-load.

Legal Maximum Dimensions (no permit required)

Width

8.5ft (102in)

Height

14ft (168in)

Max semitrailer length

53ft on designated routes · 48ft elsewhere

Max overall combination length

60ft

Gross Weight

80,000 lbs

Single Axle

20,000 lbs

Tandem Axle

34,000 lbs

ORS 818.080: maximum height 14 ft (168 in) including load; a permit is required above that. The statute expressly states the limit does NOT relieve the owner or driver of the duty of due care in confirming sufficient vertical clearance on the roads actually travelled.

Official source for this height limit →

⚠️ A single number CANNOT be correct for Oregon. Three route classes: (1) National Network (23 CFR 658 App. A) — 53 ft trailer, NO overall restriction; (2) state-approved highways — 53 ft trailer, 65 ft overall; (3) statutory base, ORS 818.080 Table I — 40 ft for a vehicle IN a combination and 60 ft overall including load. THE TRAP: a tractor pulling a 53 ft trailer is typically 65-70 ft overall, so it CANNOT legally run on a non-designated Oregon route even though "53 ft" appears in the rules. The 53 ft is a route-specific administrative-rule extension (OAR 734-073-0056/0060), not a statewide legal limit. Our previous 60 ft was the statutory base overall figure.

Official source for these length limits →

Escort / Pilot Car Thresholds (see glossary for terms, certification requirements for the driver)

These escort figures are route-dependent — they can change with road classification, lane width, two-lane vs multilane, and time of day. Confirm with the permit office before dispatching.

Front escort required over

9ft wide

Rear escort required over

9ft wide

Both escorts required over

14ft wide

Height escort required over

14.5ft tall

Oregon does NOT use a single statewide width trigger for pilot cars; requirements are set per-highway by ODOT 'Route Map 2' and by ODOT District approval (Pilot Car Guide, May 2026). Recurring pattern: on MULTILANE highways loads up to 16 ft are per Route Map 2, over 16 ft require at minimum one front + one rear pilot; on TWO-LANE highways loads up to 12 ft are per Route Map 2, over 12 ft require at minimum one front + one rear pilot. HEIGHT: a single-trip permit for a load over 14'6" high must run a front pilot car with an overheight (height) pole for the whole trip (= 174 in) or file a signed liability declaration. Certified flaggers and, on some segments, rolling/complete road closures are required for very wide moves. Not weight-tied. Superloads handled case-by-case by the District and Over-Dimension Permit Unit.

Travel Restrictions

Night travel

Generally restricted

Weekend travel

Generally restricted

Sunday travel

Generally restricted

Overwidth loads move only within ODOT District 'Hours of Movement' windows, which are daylight-only weekday windows (e.g., District 1 summer Mon-Thu daylight to 11 a.m. and 6 p.m. to dusk; winter Mon-Fri 7-11 a.m. and 1-3 p.m.). Saturday/Sunday movement of overwidth loads is often not allowed or case-by-case by District. Metro/urban and coastal corridors (Portland, Salem, Eugene, Grants Pass, Medford, Astoria/Seaside/Tillamook) have tighter windows avoiding rush hours. Certain non-overwidth commodities (long logs/poles/piling up to 105 ft) may operate 24/7. Night/weekend defaults are conservative; narrower over-dimension or specific-commodity loads may be allowed nights/weekends per route and District.

Holiday blackouts: New Year's, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas — each with an extended window from noon the day before to one-half hour before sunrise after the holiday (per ODOT annual travel-restriction calendar).

See how Oregon compares to every state ›

Superload Thresholds

Width over

16ft

Height over

17ft

Length over

150ft

Per ODOT 'Oregon Superloads': a load is a superload when it is over 16 ft wide (192 in) on the Interstate and multilane state highways, OR over 14 ft (168 in) wide on any state two-lane highway (non-divisible loads), OR mobile units with box width over 14 ft and/or overall width greater than 15 ft, OR over 17 ft (204 in) high on any highway, OR overall length greater than 150 ft. No single superload gross-weight number is published; extra-heavy loads require axle-spacing/engineering and bridge analysis, case-by-case.

Estimated Permit Cost Verify before relying

$8 flat administrative fee — this does NOT include the separate mileage/weight-based Road Use Assessment Fee, which could not be located

⚠ Do not treat $8 as the total permit cost — it excludes the road-use fee component entirely.

Source: ODOT Form 735-9973 (rev. 01-2023) — verify current fee with the permit office before budgeting a move.

Permit fee only — does not include escort/pilot-car service costs (market-rate, arranged separately) or third-party permit-service fees. This is an estimate for planning purposes, not a quote.

Get a Permit

Online portal

https://www.oregonorion.com/

Phone

503-373-0000

Coast Range and Cascade Mountains routes require special routing. Oregon has complex route restrictions.

Planning a move through Oregon?

Enter your load's exact size to see whether it needs a permit or escort here, plan a truck-legal route, or find a transporter or escort.

Check my load in Oregon Route Planner Find an Escort