Will My Truck Fit?
The free, searchable database of commercial bridge clearances across all 50 US states. Find low-clearance bridges before you hit them.
radar LAUNCH LIVE HAZARD RADARSearch Clearances
Interactive Clearance Map
Select your state to view low-clearance locations.
State Directory
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District Of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
What’s a safe clearance margin over my vehicle height?
Most commercial fleets recommend an absolute minimum safety margin of 6 inches, though 12 inches (1 foot) is preferred. This accounts for snowpack, repaving, and suspension bounce. If your truck is 13'6", you should not attempt any bridge marked under 14'0".
Why might posted clearance differ from actual clearance?
States often post a "legal clearance" that is intentionally 3 to 4 inches lower than the actual measured physical clearance to provide a built-in safety buffer. Additionally, repaving a road under a bridge reduces its clearance, and it can take time for new signs to be posted or federal databases to be updated.
Is there a federal maximum truck height?
No, there is no federal maximum vehicle height. However, the Federal Highway Administration requires states to clear Interstates to at least 14 feet, or 16 feet in rural areas. Most states set their legal standard maximum height at 13 feet, 6 inches or 14 feet without requiring oversize permits.
What are the penalties for a bridge strike?
Penalties vary by state but typically include heavy fines (often $1,000 to $5,000), liability for all bridge repair costs, liability for traffic control during recovery, points on your CDL, and immediate termination by most commercial carriers.
How do I plan a route to avoid low bridges?
Always use a commercial-grade GPS designed for trucking (such as a Garmin dēzl or Rand McNally TND) or professional routing software (like PC*MILER). Never rely solely on consumer apps like Google Maps or Waze, as they route for passenger cars and do not account for bridge heights or weight limits.