Maryland Oversize Permits
Maryland oversize permits information including legal dimensions, routine permit limits, and escort requirements, operating times and restricted travel.
Maryland Oversize Permit Office Phone Number 270-908-9656
Maryland Oversize Permits Phone Number: 270-908-9656 (Permit Agency)
What Are Maryland Oversize Permits?
Maryland Oversize Permits are required for vehicles and loads that exceed standard legal size and weight limits on Maryland roadways. These permits ensure safe and efficient transportation of oversized loads, protecting both the freight and infrastructure.
– Maryland Single Trip Permits: Issued for one-time travel within the state⁷.
– Maryland Annual Permits: Offer long-term authorization for frequent oversize load transportation¹.
– Maryland Overhang Permits: Govern loads that extend beyond the vehicle’s front or rear¹¹.
– Maryland Overweight Permits: For loads exceeding standard weight limits[^10^].
- PERMITS: Maryland oversize permits are valid for four days. Drivers have the option of purchasing permits at most Ports of Entry.
- OPERATING TIME: Daylight hours, (one-half hour before sunrise to one-half hour after sunset). Loads/vehicles not over 10′ wide or 14′-6″ high or not over 10′ rear overhang are allowed continuous travel
How to Obtain Maryland Oversize Permits
- Online: Apply through the MDOT system website.
- Phone: Contact the permit office at 270-908-9656
- In-Person: Visit Port of Entry locations or the Central Commercial Vehicle Permit Office¹.
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Oversize / Overweight Permits | Get your permit online
| Category | Legal Dimensions | Routine Permit Limits |
|————–|———————-|—————————|
| Width | 8’6″ on roadways 12′ & wider⁴ | 14’⁶ |
| Height | 13’6″⁴ | 16’⁶ |
| Length | 40′ (single vehicle), 57’6″ (truck-semitrailer)⁴ | 120’⁶ |
| Weight | 80,000 lbs (gross)⁴ | 250,000 lbs (gross); Tandem – 46,000 lbs; Tridem – 51,450–53,974 lbs⁶ |
Permitting Superloads
The dimensions of a “superload” differ by state (see the “Routine Permit Limits” section for the states in issue).
Some states need one to two weeks to approve and issue a superload permit. Expect delays.
States may demand letters from shippers, route surveys, district-by-district engineering clearances, and so on, which may cause delays in the approval process.
Maryland Legal Dimensions and Routine Permit Limits
Legal Dimensions
| Width | 8’6″ |
| Overhang | With up to 53′ trailer 3′ front 14′-11″ rear |
| Height |13’6″|
| Length | 53’0 trailer & 99’ overall length
| Weight | 80,000 lbs (gross) Single: 20,000, Tandem: 34,000, Tridem – 42,000.
Routine Permit Limits
| Width | 16’|
| Height | 15′-6″ (surveys beyond 15′-7″ need approval) | 16′ (surveying beyond 16′ requires utility company lines and specific acceptance). |
| Length | 120’ |
| Weight | Single – 20,000| Tandem – 48,000 | 57,000 (63,00 on interstate | Quad – 64,000 (72,000 on interstates |
Maryland Oversize All Permit Fees
| Oversize single-trip | $15⁵ |
| Oversize 30-day | $30⁵ |
| Oversize/overweight single-trip | $75⁵ |
| Oversize/overweight 30-day | $75⁵ |
| Oversize annual | $360⁵ |
| Oversize/overweight annual | $600⁵ |
Maryland Oversize Permits Escorts
| Condition | Requirement |
|—————|—————–|
| Height | If necessary, the DOT may demand an escort with a high pole on certain routes. A route survey is necessary for heights over 15′-7″.
| Length |
- At least 95’ one escort
- More than 105′ two escorts.
| Overhang | 15’ front or rear one escort |
| Width |
- Over 13′one escort.
- Over 16’ two escort.
- Over 10’ wide at night – one escort
Various: An overweight dozer and blade must be connected, or the blade must be transported separately if removed.
SIGNS, FLAGS, Plus LIGHTS: “Oversize Load” signs are necessary for any loads more than 12 feet wide. Flags are needed on all corners of loads wider than 10 feet (placed at a height of about six feet above the pavement). Loads wider than 12 feet need flashing amber lights positioned on the back and flags on the front corners of the load. Over-length loads and overhangs of more than four feet must be indicated.Carefully measure your burden. An inch or two of extra height may significantly improve routing and turnaround time on a superload.
Frequently asked about Maryland Oversize Permits
Maryland Oversize Permits | Overweight Permits | 270-908-9656
The cost of a Maryland Oversize Permits depends on the load’s large and weight. Typically, costs vary between $15 and $100 or more.
The speed restriction for Maryland Oversize Permits is normally the same as the stated speed limit for the specific highway, unless otherwise indicated
To obtain a wide load permit in Maryland, you typically need to apply through the Maryland Transportation Cabinet’s Division of Motor Carriers. You can apply online through their permit application system or by contacting them directly.
Time limits for large loads are common in Maryland, especially during high traffic hours or in certain regions. These restrictions are usually outlined in the permit and may vary depending on factors such as the size and weight of the load, as well as the specific route being taken.
The Maryland Transportation Cabinet’s Division of Motor Carriers is normally responsible for providing the contact information for Maryland oversize permits. You may get this information via their website or by calling their main office.
As previously stated, the rates for Maryland oversize permits vary based on the large and weight of the shipment. A permit often costs between $15 and $100 or more. The precise amount will be calculated depending on the details of your permit application.
If you still have questions regarding extended permits, contact the MDOT Transport Permits Unit at 270-908-9656
Maryland oversize permits information including legal dimensions, routine permit limits, and escort requirements, operating times and restricted travel.
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