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Massachusetts Oversize/Overweight Permits

MassachusetsPERMITS: Massachusetts Overweight/oversize permits are valid for five travel days. Must have a permit prior to entering the state.

OPERATING TIME: Generally, vehicles under 12′ wide and under 14′ high may travel from Monday morning 12:01 a.m. through noon on Saturday and Sunday from 12:01 a.m. until noon. Vehicles between 12′ and 14′ wide, over 13’11” in height, and over 80′ long (but not over 114′ long) are only permitted for travel sunrise to sunset Monday through Friday except no travel allowed between 7:00 a.m. – 9:00 a.m. or between 3:30 p.m. – 7:00 p.m.

 

LEGAL DIMENSIONS

Width:8’6″
Weight:80,000 lbs – Gross weight

  • Single – 24,000 lbs designated highways* (22,400 other roads)
  • Tandem – 34,000 lbs(36,000 other roads)
  • Tridem – 34,000 lbs

*When GVW isn’t over 73,000 lbs, 22,440 lbs legal on a single axle, and 36,000 on a tandem.

Length:
  • 53′ semi-trailer on Interstate and designated highways.
  • 48′ on all other roads
Height:13’6″

 

PERMIT LIMITS

Width:16′
Weight:
  • -Single – 25,000 lbs
  • Tandem – 50,000 lbs
  • Tridem – 70,000 lbs
Length:90′
Height:16′ (Over 13’8″ requires a height survey)

 

Loads exceeding these dimensions are treated as Superloads. Over 130,000 pounds gross requires engineering company survey of structures. This can cost several thousand dollars, depending on the route and number of structures!

Note: the maximum superload width in Massachusetts is 16 feet.

 

ESCORTS FOR WIDE LOAD & OVERSIZED SHIPPING

When Escorts are Needed:

On All Highways:

Length:

  • At 80′ – 1 escort
  • Over 100′ – State Police escort (need 48-hour notice) unless they exempt it
Width:

  • At 12′ – 1 escort
  • Over 18′ – 2 State Police escort (need 48-hour notice). The state may require a second escort for some routes
Height: Route survey may be required for over 13’6 high, escort not usually required for height.
Overhang:

  • Over 15′ – 1 escort
  • On a 2-lane undivided highway, 2 escorts are required if overhang exceeds 15′ and width is over 12′

 

SIGNS, FLAGS & LIGHTS

“Oversize Load” sign required on the rear of an oversize vehicle that does not require an escort. Mount red flags on extremities and corners for any over-width or over-length vehicle. For all O/D loads made during hours of darkness, a flashing amber light shall be in operation above the highest point of the vehicle and visible from the front and rear of the vehicle.

 

RESTRICTED TRAVEL

No travel on major holidays, and some holiday weekends. Routes 95 and 93 in the Boston area are restricted to travel only between 9:30 a.m. to 3:30 p.m.

Massachusetts Turnpike: Between NY line and I-95, no permit is required up to 10′ wide, legal weight, and up to 80′ long. Turnpike permits are issued for vehicles and loads up to 12′ wide, 13’9″ high, 80′ long, and up to 99,000 pounds.  (Lower limits apply to the Sumner, Callahan and Ted Williams Tunnels in the Boston area.) Permits to exceed these dimensions on the Turnpike require special engineering approval plus a $350.00 fee. Vehicles/loads over 12′ wide, over 100′ long or over 130,000 gross requires a police escort.