41.64500000, -87.66200000
Planning only
Fixed bridgeAir draft concern
WaterwayCalumet Sag Channel
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityBlue Island
Mile MarkerRM 318.5
Bridge TypeFixed
Source Confidencemedium
Clearance And Opening Details
Vertical Clearance Closed25.20 ft
Vertical Clearance OpenNot verified
Horizontal Clearance225.00 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: 25.2 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; verify water level. Closed/air-draft clearance: 25.2 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-relevant Fixed.
- Regulatory Notes
- Fixed. Clearance around 25 ft; verify water level.