If your dimensions exceed any of the following limits, a permit is required when qualified.
WEIGHT - GENERAL
All weights must be compliant with the Federal Bridge Formula Charts as indicated in Title 24 of the Maryland Transportation Article unless authorized by an SHA Hauling Permit
Single-20,000; Tandem-34,000; Tridum-42,500;80,000 maximum gross
The maximum allowable vehicle width in Maryland is 102 inches except where prohibited by posted signs. The width of a vehicle includes any load that it carries and shall be exclusive of safety and energy conservation devices, such as side mirrors, turn signal lamps, marker lamps, steps and handholds for entry and egress. For a detailed description of the Maryland vehicle width law, refer to Title 24, Subsection 102 of the Maryland Vehicle Law.Over 102 inches wide requires a permit. Any load extending more than 4 inches beyond the sides of any transport vehicle requires lamps & flags.
The vehicle and load height limit in Maryland is 13 feet 6 inches.
14’6” in height requires a pole vehicle and route survey before a permit will be issued
The length of a vehicle includes its front and rear bumpers and any part of its load that extends beyond the vehicle, but is exclusive of non-load bearing safety and energy conservation devices, such as marker lamps, steps and handhold for entry and egress, front-mounted refrigeration units, and front-mounted air compressors. Refer to the Maryland Vehicle Law Title 24, subsection 104.1 for a list of the different vehicle length limits in Maryland. Indivisible loads over 70’ft require a permit. Pilings, poles and mill logs require a permit exceeding 75’ft. Indivisible loads up to 70’ft maybe moved during daylight hours without a permit on a combination vehicle.
Semi-trailers over 48’ but not over 53‘ ft trailers allowed on all interstate / truck route access.Pick up or delivery on local roads must be the closest practicable distance from an authorized route. Load extensions- Max front 3’ Max rear 6’ (except for indivisible cargo). Flags & lamps are required beyond 4’ of rear overhang.
SUPER LOAD PERMITS OVER 150,000 lbs. GROSS WEIGHT
WEIGHT: Single-27,000; Tandem-52,000; Tridum-63,000; WEIGHT: LENGTH: 120’ WIDTH: 16’ HEIGHT: 16’ POLECAR: 14’6” POLICE & PRIVATE ESCORTS REQUIRED
Day moves 9:00am – 3:30 pm; Night moves can be 8:00pm to 6:00am (see COMAR Title 11.04.02.06.) Travel is prohibited on the following: New Year’s Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The State Permit Office will be closed on the above-mentioned holidays as well as Martin Luther King Day, Columbus Day, Election Day, and the day after Thanksgiving, but travel will not be restricted on these additional days. (see Holiday Restrictions)
Procedure-Superload applications require a bridge review, depending on the work load this may take several days. Once approved you will need to activate the permit by notifying Superloads@sha.state.md.us with a start date, drivers name & phone number.
Moves for loads up to and including 150k GVW, 12’ wide, 14’6” high, 90’ long may move from Monday 12:01am to Saturday, 12pm noon EST. All other loads are one-half hour after sunrise and one-half hour before sunset. No Sunday travel
CURFEW:The permittee or user may move any vehicle and load that together exceeds 45 tons gross weight or is 100’ or more in length or 12’ or more in width over I-495 and I-95 (Capital Beltway) or I-695 (Baltimore Beltway) from 9:00 a.m. to 3:30 p.m. If 14’ wide or more, 9:00 a.m. to 3:30 p.m. on any highway. Maryland has many toll, bridge, and tunnel restrictions make sure you contact them before you make your move. For further information, call Permit Office 1-800-846-6435. Curfew restrictions will be noted on your permit. Travel is prohibited on the following: New Year’s Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The State Permit Office will be closed on the above-mentioned holidays as well as Martin Luther King Day, Columbus Day, Election Day, and the day after Thanksgiving, but travel will not be restricted on these additional days.
TRUCKS SIGNING & FLAGS
“Wide Load” or “Oversize Load” signs are required if the vehicle and load exceeds 9’ in width, front and rear. The sign shall appear in black letters not less than 10” high, with a brush stroke not less than 1 5/8” wide. The letters shall appear on a yellow background, 18” high and 7’ wide on the front and rear of vehicle load. Red or orange fluorescent flags during daylight hours at least 18” square fastened by at least one corner on a staff placed at the widest extremities instead of flags, 2 red lights shall be displayed on a rear overhang exceeding 4’ indicating the widest part of the overhang and 1 on each side of the load.
One escort shall be provided for a permit move on any highway in the State if the permit move is: More than 13’ wide, unless the load is a manufactured housing unit; More than 85’ long; 14’6” high or more (pole vehicle required); More than 60 tons gross weight; Traveling when weather or road conditions justify the requirement of one escort vehicle. Two escorts. The permittee shall provide two escort vehicles for a permit move if the permit move is: 14’ wide or more including a load that is a manufactured housing unit; 140’ long or more. The permittee shall provide for police escort for any permit move which is 16’ wide or more, 75 tons gross weight or more, or the road or weather condition justify, or traveling against traffic may require 2 escort vehicles.
ESCORT VEHICLE SIGNING AND LIGHTING REQUIREMENTS
Must have two-way radio contact and maintain constant communication. A private Escort must have at least one oscillating or rotating yellow light on the roof, at least 3” in diameter and visible from the front and rear. Headlights shall be on while conducting the move. Escort vehicle shall display a sign on the front and rear of the escort vehicle and shall appear in black letters not less than 10” high, with a brush stroke not less than 15’8” wide. The letters shall appear on a yellow background, 18” high and 7’ wide or on the roof of the vehicle at least 5’ long, 12” high, letters 8” high.
Far RIGHT toll lane MUST be used at all toll plazas. Toll facilities MUST be contacted at least one hour prior to arrival . If lane is closed – Pull up- Wait- MDTA will open for you . DO NOT proceed until authorized. Loads may not go through other toll lanes.
TOLL FACILITIES & PHONE NUMBERS
JFK Memorial Hwy.-I-95 - (410) 537-1150Ft. McHenry Tunnel - I-95 - (410) 537-1230Francis Scott Key Bridge I-695 -(410) 537-7600 (ALL Wide loads must use Far Right Lane)Chesapeake Bay Bridge US 50/301 - (410) 537-6601Potomac River Bridge (Nice Bridge) – US 301 - (301) 259-4444Hatem Bridge - (410) 537-1197
707 North Calvert Street
Baltimore, Maryland 21202-3601
Main Business Line – 410-545-0300
Safety Campaigns – 1-800-323-6742
For emergencies, call MDOT SHA's Statewide Operations Center at 410-582-5650.
Frequently Asked Questions
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