Great Loop bridge planning reference

Hardin Drawbridge

Hardin Drawbridge on Illinois Rivernear Hardin, IL; closed clearance about 27.4 ft. Low movable inland river 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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39.15800000, -90.61700000

Planning only Drawbridge / movable Air draft concern
WaterwayIllinois River
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityHardin
Mile MarkerRM 21.6
Bridge TypeLift
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed27.40 ft
Vertical Clearance Open66.50 ft
Horizontal Clearance300.00 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: 27.4 ft. Open clearance: 66.5 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-relevant
Opening Schedule
Lift bridge; verify operating status.
Operator / Contact
Not verified
Navigation Notes
Lift bridge; verify operating status. River current/debris and commercial traffic considerations. Closed/air-draft clearance: 27.4 ft. Open clearance: 66.5 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Route-relevant Lift bridge; verify operating status.
Regulatory Notes
Lift bridge; verify operating status. River current/debris and commercial traffic considerations.