29- 250 C.M.R. ch. 155, § 3

Current through 2024-50, December 11, 2024

Section 250-155-3 - ENVELOPE VEHICLE CONFIGURATIONS FOR NON-DIVISIBLE OVERSIZE AND/OR OVERWEIGHT PERMIT TRIPS

1. The maximum size limits for an envelope vehicle are:

A. Length: 90 feet

B. Height: 13 feet 6 inches

C. Width: 14 feet, with the following exception:

1 for modular and mobile homes an additional six inches of overhang for eave(s) only will be allowed providing the greater overhang is on the right-hand shoulder of the highway (see the following diagram).

Click here to view Image

2. The maximum gross weight limits for an envelope vehicle are:

A. Vehicles with five axles: 108,000 lbs.

B. Vehicles with six or more axles: 120,000 lbs.

3. The minimum axle spacings for an envelope vehicle are diagramed below:

Click here to view Image

NOTE: VEHICLES WITH THE TANDEM AND TRIDEM AXLES INTERCHANGED ARE ACCEPTABLE UNDER THE SAME AXLE SPACING AND WEIGHT GUIDELINES.

4. The maximum axle weights for an envelope vehicle are:

A. Single Axle:	25,000 lbs. except for a steering axle
B. Steering Axle:	12,000 lbs. maximum; 6,000 lbs. minimum
C. Tandem Axle:	25,000 lbs. per axle
D. Tridem Axle:	20,000 lbs. per axle

5. Other Restrictions

A. Retractable axles shall not be counted as axles nor shall they be considered capable of carrying any load.

B. The maximum weight on tires shall not exceed 600 pounds per inch of nominal tire width.

29- 250 C.M.R. ch. 155, § 3