Quoting the Load These Rules Apply To?

Load planning turns a project piece list into a truck-by-truck plan and prices the permits, escorts, and accessorials for every state on the route — you just add your truck rates.

See How Load Planning Works

Maryland Axle Weight Limits

Axle spacings and weight calculator

Max Legal Weight for GVW under 80,000 lbs and Max Permitted Weight for GVW over 80,000 lbs

Vehicle configuration

Maximum Legal Weight Allowed

Axle Group

Maximum

Single

20,000 pounds

Tandem (Two Axle)

34,000 pounds

Tridem (Three Axle)

42,500 pounds

Gross Vehicle Weight

80,000 pounds

Maximum Permit Weight Allowed

Axle Group

Maximum

Single                                                                                                                                                                                                                          

27,000 pounds

Tandem (Two Axle)

52,000 pounds

Tridem (Three Axle)

63,000 pounds

Gross Vehicle Weight

120,000 pounds

Gross Vehicle Weight

150,000 pounds (may issue a permit for weight over 150,000 after a valid engineering structural review)

Note: 30,000 pounds max per axle up to 110,000 pounds GVW;
27,000 pounds max per axle from 110,001 pounds GVW and over.

Source of information: http://www.roads.maryland.gov/Index.aspx?PageId=500
https://oversizeloadescorts.com/regs/md.pdf