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Vessel Directory
Filter loop-ready trawlers, motor yachts, and tugs vetted against fixed bridge obstacles (19.6 ft in Chicago) and inland draft depth restrictions.
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Hazard Lookout Map
Crowdsourced warnings from the helm: track shifting shoals, deadheads, lock repairs, and temporary bridge air-draft limitations.
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Clearance Calculator
Test any boat dimensions against the fixed bottlenecks along the loop: Lemont Bridge (19' 6"), Champlain Canal (15' 6"), and eastern Erie Canal (21' 0").