Low clearance bridges on US-51

31 spots where US-51 has less than 16 ft of clearance, in the order you drive them from south to north. The lowest is 14 ft 0 in in Wisconsin, 0.2M N Junction STH 26. 14 are under 15 ft.

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.

15 ft 8 in under Natchez Trace · US-5114 ft 11 in under I-55 · US-5114 ft 11 in under I-55 · US-5114 ft 2 in under Cnic Railroad · US-5114 ft 9 in under I-55 SB · US-5114 ft 3 in under I-55 NB · US-5115 ft 1 in under FAU 2851 · US-5114 ft 4 in under FAU 2850 · US-5114 ft 5 in under FAU 2855 · US-5114 ft 11 in under FAS 88 · US-5115 ft 11 in under FAU 77 · US-5115 ft 9 in under FAU 1503 · US-5115 ft 11 in under NFA A276 · US-5115 ft 8 in under NFA A615 · US-5114 ft 9 in under Penn Central · US-5114 ft 6 in under ICG Railroad · US-5115 ft 1 in under Cnic Railroad · US-5115 ft 8 in under I-57 SB · US-5115 ft 10 in under I-57 NB · US-5114 ft 7 in under Fai 64 EB · US-5114 ft 7 in under Fai 64 WB · US-5115 ft 10 in under US 34 FAP 587 · US-5115 ft 10 in under Lee Road · US-5115 ft 10 in under Ill 64 · US-5115 ft 10 in under TR 73A-MCNEAL Road · US-5114 ft 1 in under Cmstpp Railroad · US-5114 ft 0 in under Cmstpp Railroad · US-5115 ft 1 in under LRD E Memorial Drive · US-5115 ft 5 in under I-39 SB / I-90 E · US-5115 ft 5 in under I-39 NB / I-90 W · US-5115 ft 10 in under CTH A · US-51