Great Loop bridge planning reference

CWI Railroad Bridge

CWI Railroad Bridge on Chicago Sanitary & Ship Canalnear Chicago, IL; closed clearance about 18.6 ft. Critical low fixed/nonopening 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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41.80400000, -87.73900000

Planning only Fixed bridgeRailroad bridgeAir draft concern
WaterwayChicago Sanitary & Ship Canal
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityChicago
Mile MarkerRM 317.5
Bridge TypeSwing railroad / does not open
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed18.60 ft
Vertical Clearance OpenNot verified
Horizontal Clearance97.00 ft
VHF ChannelNot verified
PhoneNot verified
Last Verified2026-06-08
Verify against current water level / bridge gauge before transit.

Planning Notes

Air Draft Notes
Closed/air-draft clearance: 18.6 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-limiting / Critical
Opening Schedule
Does not open.
Operator / Contact
Not verified
Navigation Notes
Does not open. Sub-20-ft clearance. Closed/air-draft clearance: 18.6 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-limiting / Critical Does not open.
Regulatory Notes
Does not open. Sub-20-ft clearance.