Sault Ste. Marie International Bridge
NBI Information
Location
State: Michigan
County: Chippewa County
Feature Carried: I-75
Feature Crossed: St. Mary River
Latitude, Longitude: 46.5084,-84.3607
Toll: Toll bridge
Maintenance Responsibility: State Toll Authority
Structure Open, Posted, or Closed to Traffic: Posted for load (may include other restrictions such as temporary bridges which are load posted)
History
Year Built: 1962
Historical Significance: Bridge is on the National Register of Historic Places.
Year Reconstructed: None
Picture Date: September 1, 2025
Geometry
Lanes on Structure: 2
Lanes under Structure: 5
Skew: 0 degrees
Number of Main Spans: 8
Main Structure Type: Truss - Thru
Main Structure Material: Steel continuous
Number of Approach Spans: 55
Approach Structure Type: Girder and Floorbeam System
Approach Structure Material: Steel continuous
Condition
Inspection Date: August 2023
Deck Condition: Satisfactory
Superstructure Condition: Satisfactory
Substructure Condition: Satisfactory
Channel Condition: Very Good
Culvert: Not Applicable
NBI Year: 2024
Bridge Information
Coming Soon
References
Coming Soon
