Great Loop bridge planning reference

Norfolk Southern Railroad Bridge

Norfolk Southern Railroad Bridge on Calumet Rivernear Chicago, IL; closed clearance about 22.5 ft. Low movable Calumet 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.

← Back to Bridge Library

41.65300000, -87.56100000

Planning only Drawbridge / movable Railroad bridgeAir draft concern
WaterwayCalumet River
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityChicago
Mile MarkerRM 327.7
Bridge TypeLift railroad
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed22.50 ft
Vertical Clearance Open125.00 ft
Horizontal Clearance219.70 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: 22.5 ft. Open clearance: 125 ft. Datum/reference: Low Water Datum Lake Michigan; IGLD 1985. Clearance band: Low / Timing-sensitive
Opening Schedule
Lift bridge; verify rail/opening status.
Operator / Contact
Not verified
Navigation Notes
Lift bridge; verify rail/opening status. Closed clearance low; open clearance high. Closed/air-draft clearance: 22.5 ft. Open clearance: 125 ft. Datum/reference: Low Water Datum Lake Michigan; IGLD 1985. Clearance band: Low / Timing-sensitive Lift bridge; verify rail/opening status.
Regulatory Notes
Lift bridge; verify rail/opening status. Closed clearance low; open clearance high.