Great Loop bridge planning reference

Conrail CSX Railroad Bridge

Conrail CSX Railroad Bridge on Chicago Sanitary & Ship Canalnear Chicago, IL; closed clearance about 17.6 ft. Critical low bridge.

Planning awareness only: Bridge information is provided for planning awareness only. Always verify current bridge status, clearance, water levels, bridge schedules, opening restrictions, Local Notices to Mariners, bridge signage, and official charts before transit. FloatPlanWizard is not a navigation authority.

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41.79700000, -87.69000000

Planning only Drawbridge / movable Railroad bridgeAir draft concern
WaterwayChicago Sanitary & Ship Canal
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityChicago
Mile MarkerRM 320.4
Bridge TypeBascule railroad
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed17.60 ft
Vertical Clearance OpenNot verified
Horizontal Clearance120.00 ft
VHF ChannelNot verified
PhoneNot verified
Last Verified2026-06-08
Bridge contact information has not been verified yet. Confirm current opening procedures before transit.
Verify against current water level / bridge gauge before transit.

Planning Notes

Air Draft Notes
Closed/air-draft clearance: 17.6 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-limiting / Critical
Opening Schedule
Bascule; verify opening/status.
Operator / Contact
Not verified
Navigation Notes
Bascule; verify opening/status. One of the lower Chicago-area clearances. Closed/air-draft clearance: 17.6 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-limiting / Critical Bascule; verify opening/status.
Regulatory Notes
Bascule; verify opening/status. One of the lower Chicago-area clearances.