The 100 lowest bridges on US interstates and highways

The lowest clearance on any interstate or US highway in America is 9 ft 6 in, on US-45 in Kentucky. These are the 100 lowest, from the bottom up.

Posted signs and your permit come first. These are the clearances states reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.

9 ft 6 in over Ohio River · US-4510 ft 5 in over Tygart Valley River · US-25011 ft 9 in under CSX Railroad (340575J) · US-4111 ft 10 in under C & NW Railroad · US-4111 ft 11 in over Baker River · US-312 ft 2 in under CSX Railroad · US-2312 ft 2 in under Rte 907 · I-8712 ft 4 in under CTA Elevated · US-4112 ft 4 in under Rte I-495 · I-67812 ft 7 in under IC Railroad · US-4512 ft 7 in under Railroad Bridge · US-4512 ft 7 in under Rte I-495 · I-49512 ft 9 in under IC Railroad · US-4512 ft 10 in under MNRR NH Line · US-112 ft 11 in under Amtrak NE Corridor · US-112 ft 11 in over Mystic River · US-112 ft 11 in under C & NW Railroad · US-1412 ft 11 in under At & SF Railroad (801921W) · US-24 Business12 ft 11 in under I-90 Maint Ramp · I-9013 ft 0 in under US 49 · US-1113 ft 0 in under 2nd Avenue · I-49513 ft 1 in under Pedestrian Overpass · US-8213 ft 1 in under Crip & P Railroad · US-1213 ft 1 in under FL-5042 · I-2513 ft 1 in over Rte I-278 Brooklyn Bridg · I-27813 ft 1 in under MNRR NH Line · US-113 ft 1 in under CSX Transprtation · US-9W13 ft 1 in over Red River of the North · US-2 Business13 ft 2 in under 36th Street · I-49513 ft 2 in under MNRR PJ Line · US-613 ft 3 in under PA 72; SR 0072 · US-2213 ft 3 in under US016A · US-16 Alternate13 ft 3 in under Manor Road · I-3513 ft 4 in under Township Line Road · I-46513 ft 5 in over Alabama River · US-8013 ft 5 in under Sterling Avenue · I-7413 ft 5 in under ATSF Cmo Railroad · US-613 ft 5 in under ATSF Gmo Railroad · US-613 ft 5 in under Cri & P Railroad (East) · US-1213 ft 5 in under PC Railroad (East) · US-1213 ft 5 in under B & O Railroad · US-1213 ft 5 in under UP (CSXT) SOO Railroad · US-3013 ft 5 in under ATSF Cmo Railroad · US-3013 ft 5 in under ATSF Gmo Railroad · US-3013 ft 5 in under Old US 41 · US-4113 ft 5 in under Westbrook Street · I-9513 ft 5 in under Academy Road · I-9513 ft 5 in under Small Road · I-9513 ft 5 in under Stevenstown Road · I-9513 ft 5 in under Mountain Road · I-9513 ft 5 in under Plains Road · I-9513 ft 5 in under Wells Inter. · I-9513 ft 5 in over St Clair River CN Railroad · I-9413 ft 5 in over Bull Shoals LK · US-16013 ft 5 in under US 275 · US-7513 ft 5 in under Baird Blvd(Co 608) · US-3013 ft 5 in under SR1010N · US-1513 ft 5 in under SR1010N · US-50113 ft 5 in over Umpqua R & McIntosh SL · US-10113 ft 5 in under Airport Connector · US-113 ft 5 in over IC Railroad & Nonconnah Creek · US-6113 ft 5 in under E 32nd Street · I-3513 ft 5 in under STH 38 (S. Chase A · I-4313 ft 6 in under C & NW Railroad · US-1413 ft 6 in under BN(078469G) · US-13613 ft 6 in under CSX Transprtation · US-9W13 ft 6 in under US 10 / Main Avenue · US-8113 ft 7 in over Acm Test Track · US-1213 ft 7 in under Norfolk S Railroad · US-1113 ft 7 in over Hcksck & PSSC RVRS RDS · US-113 ft 7 in under MNRR PJ Line · US-613 ft 7 in under Pa Turnpike (I-76) · US-22013 ft 8 in over Coosa River · US-7813 ft 8 in under SL-SW Railroad · US-79 Business13 ft 8 in under Norfolk Southern R · US-2313 ft 8 in under Union Pacific Railroad · I-55 Business13 ft 8 in under Norfolk Southern Railroad · I-55 Business13 ft 8 in under Keeler Avenue · I-29013 ft 8 in under Independence Boulevard · I-29013 ft 8 in under Central Park Avenue · I-29013 ft 8 in under UP (CSXT) SOO Railroad · US-613 ft 8 in under McCormick Walk @23 · US-4113 ft 8 in under K3 Beaverville & S · US-5213 ft 8 in under Decatur Street · I-8013 ft 8 in under Ramp to Morris Street · US-2213 ft 8 in under Rte 9 · I-9013 ft 8 in under Rte 907W · US-113 ft 8 in under Rte I-87 · US-913 ft 8 in under CSX Transportation · US-1113 ft 8 in under Ramp T · I-37613 ft 8 in under Golden Mile HW · US-2213 ft 8 in under FAU 2861 · US-7813 ft 8 in over CB & Lookout Road - Tres A · US-1313 ft 8 in over CB & Lookout Road - Tres A · US-1313 ft 8 in over Ches. Bay - Trestle D · US-1313 ft 8 in over Ches. Bay - N Channel · US-1313 ft 9 in under SL-SF Railroad Benton 1 · US-6213 ft 9 in under S5-PERSHING DR Off · I-5