Great Loop bridge planning reference

Blue Water Bridge

Blue Water Bridge on St. Clair River / Lake Huronnear Port Huron / Sarnia, MI / ON; closed clearance about 152 ft. Major border bridge / route option.

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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42.99810000, -82.42300000

Planning only Fixed bridgeAir draft concern
WaterwaySt. Clair River / Lake Huron
Route SegmentChesapeake / Hudson / Great Lakes
Route VariantCommon route or Loop alternative
State / ProvinceMI / ON
Nearest CityPort Huron / Sarnia
Mile MarkerLake Huron route option
Bridge TypeFixed
Source Confidencelow

Clearance And Opening Details

Vertical Clearance Closed152.00 ft
Vertical Clearance OpenNot verified
Horizontal ClearanceNot verified
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: 152 ft. Datum/reference: Planning value; verify NOAA ENC/current chart. Clearance band: High clearance
Opening Schedule
Fixed.
Operator / Contact
Not verified
Navigation Notes
Fixed. Only relevant if using Lake Huron/St. Clair/Detroit River route option. Closed/air-draft clearance: 152 ft. Datum/reference: Planning value; verify NOAA ENC/current chart. Clearance band: High clearance Fixed.
Regulatory Notes
Fixed. Only relevant if using Lake Huron/St. Clair/Detroit River route option.