2022 Maryland State Regulations, Limitations, and Laws for Oversize and Heavy Haul TruckingIf you would like to share your knowledge with others please do so at the bottom of this page.
Legal Loads Limits in MarylandThe following are the legal load dimensions and weight limits in Maryland.
- Length: 65’ (48’ trailers) (53’ allowed on Interstate only with 41’ to the kingpin max), and not more than 4′ set back from the front of the trailer to the kingpin
- Overhang: 3’ front and 6’ rear maximum.
- Weight: GVW 80,000
- Tandem: 34,000
- Width: 8’ on non-designated highways – 8’6” on designated highways.
- Height: 13’ 6”
Routine Trucking Permits in MarylandThe following are the maximum legal dimensions and weight limits for load transport permits in Maryland.
- Length: 120’
- Weight: Less than 120,000 (non-Interstate) to 150,000 (Interstate), single – 27,000 lbs., tandem – 52,000 lbs., tridem – 63,000 lbs.
- Width: 16’
- Height: 14’ 6” – high pole required. (any height over 13′ 6″ cannot be permitted on a flatbed). Over 14′-6″ now requires a route survey.
When You Are Required to Have Pilot Cars in MarylandWhen a load exceeds the following weight and dimensions, it must be accompanied by a pilot car.
- Length: Over 120’
- Weight: Over 110,000 lbs.
- Width: Over 13’ requires 1 pilot car in front. Over 14’ requires 1 pilot car in front and 1 pilot car in the rear.
- Height: Over 16’.
Travel Times and Restrictions in MarylandTimes that you are not allowed to travel within the state of Maryland with oversize or heavy haul loads: Daylight hours are defined as a one-half hour after sunrise and one-half hours before sunset. You may not travel on Sunday. Saturday travel is permitted in till noon. Maryland state DOT has different curfews that must be followed in areas with high traffic densities. Typically these hours are from 9 AM until 3:30 PM. No travel is usually allowed between these hours. Maryland has many toll bridges and tunnels that may charge additional fees. You should contact the Maryland Transportation Authority (US-50: 410–537–6601, I95: 410–537–1150, FC Key Bridge: 410–537–7600). When traveling on toll roads, bridges, or tunnels, always check your physical permit for curfew times, especially if you’re over 45 gross tons, 100 feet in length, or over 12 feet wide. If you’re over 14 feet, you will not be permitted to travel between 9 AM and 3:30 PM on any highway. Travel is not permitted on any of the following holidays:
- New Year’s Day
- Good Friday
- Memorial Day
- Independence Day
- Labor Day
- Thanksgiving Day
- Christmas Day
Maryland DOT Contact InformationInformation and links for oversize and heavy haul shippers: Maryland State Highway Administration Office of Traffic Safety, Oversize, and heavy haul division Hauling Permits Unit 7491 Connelley Dr. Hanover, MD 21076 E-mail: email@example.com or firstname.lastname@example.org Phone: 410-582-5727, 800-846-6435 or 800-543-4564 Fax: 410-787-2863 or toll free fax: 800-945-3416 Hours: Monday thru Friday 7:30 am to 4:30 pm (closed noon to 1 o’clock). NOTES: Single trip permits are valid for 5 days. Also, Maryland has a pretty good manual you can view here. Baltimore City: Baltimore permits routes into or out of Dundalk Marine Terminal are included with the Maryland state permit provided the dimensions are under 120,000 pounds, 12′ wide, 14′-6″ high, and 85′ long. Loads with other Baltimore destinations or origins, or loads exceeding these dimensions have to be ordered separately from Baltimore City, which is usually slow. Count on a 24-hour wait.
The information contained in these pages is research information primarily for use by oversize and overweight trucking company drivers, dispatchers, and pilot car companies. While every effort is put into maintaining the accuracy of this information you must absolutely verify this information with the Maryland State DOT Permits office before commencing movement.