Low clearance bridges in St. Clair County, Illinois

7 spots where an interstate or US highway in St. Clair County has less than 16 ft of clearance, lowest first. The lowest is 14 ft 6 in on I-55, Pier A1 to Abut A46. 2 are under 15 ft.

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

Map of St. Clair County, Illinois with a pin on each low spot.
Hover a pin to read it, tap it to find it in the list. © Mapbox © OpenStreetMap
ClearanceWhereHighway
14 ft 6 inUnder Union Pacific Railroad O2 B C H 4 Esl STS · Pier A1 to Abut A46 · MapI-55
14 ft 11 inUnder WB I-64 · W of Exchange Avenue · MapI-55
15 ft 1 inUnder TRRA Railroad · 1st Urps E Poplar Street · MapI-55
15 ft 8 inUnder N Main Street / FAU 92 · 1 / 2 mi S of US 50 · MapI-64
15 ft 10 inUnder St Clair Avenue · N of Collinsville Avenue · MapI-55
15 ft 10 inUnder St Clair Avenue · N of Collinsville Avenue · MapI-64
15 ft 10 inUnder St Clair Avenue · N of Collinsville Avenue · MapUS-40