Header, RI Turnpike and Bridge Authority

Mt. Hope Bridge Weight Restrictions


Maximum gross weight 42 tons
(84,000 lbs.)
Horizontal Clearance between sidewalk curbs 27'
Maximum Grade 3.8%
Maximum Width Permitted 13' 6"
Maximum Height Permitted 16'

All inquiries regarding the above will be directed to the Chief of Maintenance or a designee.

RI Over-The-Road Permits

A vehicle exceeding the limitations below is required to secure an "over-the-road" permit from the State of Rhode Island. This is handled by the Registry of Motor Vehicles at: Oversize Permits 401-588-3011. RI State Police need to be notified by all over-width vehicles so that they can provide a mandatory escort over the bridge.

The regulations from the Motor Vehicle Act of the State of Rhode Island for all highways and bridges impose limitations as follows:

Length: 40’0” – single unit. Tractor semi-trailer combinations – no overall length limit but semi-trailer can not be more than 55’0” ft.

Width: 8’6”

Height: 13’6”

Weight: Rhode Island Bridge Formula

Vehicles exceeding the posted weight limit of 40 tons or the above sizes must obtain a RI permit to cross the bridge.
Footer, RI Turnpike and Bridge Authority