Chicago’s downtown river bridges lift in choreographed sequence every spring and fall for the sailboat runs to and from Lake Michigan — the city’s famous bridge-lift season. Downstream, the Illinois Waterway’s spans at Joliet work year-round for barge tows. Tap any bridge for its rule.
MileCheck shows live state DOT feeds, mile markers, and bridges on the road — in all 50 states, with CarPlay and Android Auto.
App Store Google PlayHow it works: opening rules come from the US Coast Guard’s Drawbridge Operation Regulations (33 CFR Part 117). Chicago’s downtown lifts follow the seasonal boat-run calendar; no public live feed exists. Bridges without a map pin are listed with their rule but haven’t been precisely located yet. Also see Seattle and the other state pages on the Maps hub.
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