Great Loop bridge planning reference

ConRail Railroad Bridge

ConRail Railroad Bridge on Little Calumet Rivernear Chicago / Calumet City area, IL; closed clearance about 25.1 ft. Low Calumet route 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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41.64400000, -87.58000000

Planning only Fixed bridgeRailroad bridgeAir draft concern
WaterwayLittle Calumet River
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityChicago / Calumet City area
Mile MarkerRM 325.3
Bridge TypeFixed railroad
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed25.10 ft
Vertical Clearance OpenNot verified
Horizontal Clearance249.30 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: 25.1 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-relevant
Opening Schedule
Fixed.
Operator / Contact
Not verified
Navigation Notes
Fixed. Clearance around 25 ft. Closed/air-draft clearance: 25.1 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-relevant Fixed.
Regulatory Notes
Fixed. Clearance around 25 ft.