45.81740000, -84.72780000
Fixed bridge
WaterwayStraits of Mackinac
Route SegmentChesapeake / Hudson / Great Lakes
Route VariantCommon route or Loop alternative
State / ProvinceMI
Nearest CityMackinaw City / St. Ignace
Mile MarkerLake Michigan / Lake Huron
Bridge TypeFixed suspension
Source Confidencelow
What Boaters Should Know
Mackinac Bridge on Straits of Mackinacnear Mackinaw City / St. Ignace, MI; closed clearance about 155 ft. Major Great Lakes landmark.
Clearance And Opening Details
Vertical Clearance Closed155.00 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.
Opening / Contact Notes
- Opening Schedule
- Fixed.
- Operator / Contact
- Not verified
Navigation And Regulatory Notes
- Air Draft Notes
- Closed/air-draft clearance: 155 ft. Datum/reference: Planning value; verify NOAA ENC/current chart. Clearance band: High clearance
- Navigation Notes
- Fixed. Not generally limiting; exposed water and weather are primary navigation issues. Closed/air-draft clearance: 155 ft. Datum/reference: Planning value; verify NOAA ENC/current chart. Clearance band: High clearance Fixed.
- Regulatory Notes
- Fixed. Not generally limiting; exposed water and weather are primary navigation issues.
Planning Considerations
Confirm your vessel air draft, current water levels, bridge signage, official charts, bridge schedules, Local Notices to Mariners, and any VHF or phone procedures before approaching this bridge. If the bridge is movable, build extra time into your route plan for opening windows, traffic, restrictions, weather, and communication delays.