Pennsylvania Oversize/Overweight Permits


PennsylvaniaPERMITS: Pennsylvania oversize permits are valid for seven days. Must have a permit prior to entering the state.


OPERATING TIME: Sunrise to sunset Monday through Friday, and Saturday sunrise until noon. Overweight-only, not exceeding 107,000 pounds and not exceeding 70′ overall length, operating at prevailing speeds can have continuous travel.



Height: 13’6″
Weight: 80,000 lbs- gross weight

  • Steer Axle – 20,000 lbs
  • Single – 20,000 lbs
  • Tandem – 34,000 lbs
  • Tridem – 42,500 lbs
Overhang: Up to 6′ rear overhang allowed on a divisible load. No overhang is legal unless it is a non-divisible load as above.
Length: 53′ semitrailer (kingpin to the centerline of rear axle group must not exceed 41′). If the combination is legal without load, no permit is required if the load is 70′ or less or if overall length is 85′ or less and the load is non-divisible (no extra length created by multiple end-to-end pieces). No overhang restrictions. This includes beams, utility poles, pipes, building materials, etc.
  • 8’6″ on designated highways
  • 8′ on other roads




  • Single – 27,000 lbs
  • Tandem – 52,000 lbs
  • Tridem – 63,000 lbs
  • Quad – 72,000 lbs
Width: 16′
  • 120′
  • 160′ on 4-lane highways
Height: 14’6″

Loads exceeding 201,000 gross weight, width over 16 feet, or 160 feet overall length, are considered Superloads.



When Escorts are Needed:

On 2-Lane Highways:

Width over 13′ 1 escort on all highways
Width over 16′ Police escort
Overhang over 15′ 1 escort
Length over 90′ 1 escort
Length over 160′ Police escort
Height over 14’6″ 1 escort with height pole and PA requires a route survey to accompany the application
Weight over 201,000 lbs needs a Police escort
If permit reduced speeds over bridges 1 escort
If permit requires a load to be the only vehicle on a bridge or to occupy more than one lane traffic on a bridge 2 escorts

Note: If both lengths exceed 90′ and width exceeds 13′, the front and rear pilots are required on all two-lane highways.


The City of Philadelphia requires Police escorts when:

11;5″ wide

14′ high

75′ long

145,000 lbs

Non-Urbanized Areas:

Permitted load unable to maintain 40 mph on limited access highways – 1 escort

Urban Areas:

Permitted load not able to run 40 mph on limited access highways allowed only between 9 am to 4 pm – 1 escort

Oversize load allowed to run 3:00 a.m. to sunrise — 2 escorts




A permit must be ordered in advance if the width is over 10′, length is over 85′, height is over 13’6, weight is over 125,000 pounds or any axle weight is over 22,400 pounds. Height over 13’6″ is not allowed on the mainline (I-76). Over 11′ wide, over 90′ long or over 15′ rear overhang requires a pilot car. From Memorial Day to Labor Day, O/D loads can travel between dawn to dusk Monday through Thursday, and dawn to noon on Friday. After Labor Day until Memorial Day, they can travel dawn to dusk Monday through Friday and dawn to noon on Saturday. Gross weight of 80,000 – 100,000 pounds is moderately expensive. Over 100,000 pounds is much more expensive.



“Oversize Load” signs are required on the front of tractor and rear of load or trailer (whichever extends the farthest) on all oversized loads unless otherwise specified in the permit. Signs must be removed or covered when the vehicle/load is no longer oversize. Flags are required at the widest points of an oversize load. Rear overhang of 4′ or more must be flagged, or have a red light attached to the end of the load during darkness. Headlights and rear lamps of a permitted vehicle must be on during movement when traveling by pilot car(s).



Daylight only until noon on Saturdays and no Sunday travel. Over 10 feet wide and/or 85 feet in length are not allowed any weekend travel. Inside urban areas (see map included with provision sheets), except for holidays, movement is allowed seven days a week from 9:00 a.m. – 4:00 p.m. and 7:00 p.m. to sunset, and also 3:00 a.m. – 7:30 a.m. (but 2 pilots and special lighting required). The city permit is required for Philadelphia for all routes except Interstates. Permit travel is usually not allowed from noon the day before the six major holidays and holiday weekends until the following weekday.