Great Loop bridge planning reference

Burlington Northern Railroad Drawbridge

Burlington Northern Railroad Drawbridge on Illinois Rivernear Ottawa, IL; closed clearance about 21.7 ft. Low movable rail 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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41.34500000, -88.84100000

Planning only Drawbridge / movable Railroad bridgeAir draft concern
WaterwayIllinois River
Route SegmentIllinois / Chicago
Route VariantInland Rivers / Chicago or Cal-Sag
State / ProvinceIL
Nearest CityOttawa
Mile MarkerRM 239.4
Bridge TypeLift railroad
Source Confidencemedium

Clearance And Opening Details

Vertical Clearance Closed21.70 ft
Vertical Clearance Open48.10 ft
Horizontal Clearance167.00 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: 21.7 ft. Open clearance: 48.1 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Low / Timing-sensitive
Opening Schedule
Lift bridge; verify status.
Operator / Contact
Not verified
Navigation Notes
Lift bridge; verify status. Low fixed/open values; verify river level. Closed/air-draft clearance: 21.7 ft. Open clearance: 48.1 ft. Datum/reference: Low Operating Level / Flat Pool; NGVD 1929. Clearance band: Low / Timing-sensitive Lift bridge; verify status.
Regulatory Notes
Lift bridge; verify status. Low fixed/open values; verify river level.