Karl B. Robertson Bridge
NBI Information
Location
State: Michigan
County: Midland County
Feature Carried: M-20 EB and M-20 WB
Feature Crossed: Tittabawassee River
Latitude, Longitude: 43.6137,-84.2500 and 43.6138,-84.2501
Toll: On free road
Maintenance Responsibility: State Highway Agency
Structure Open, Posted, or Closed to Traffic: Open, no restriction
History
Year Built: 2019 and 2018
Historical Significance: Bridge is not eligible for the National Register of Historic Places.
Year Reconstructed: None
Picture Date: August 31, 2025
Geometry
Lanes on Structure: 2 EB and 2 WB
Lanes under Structure: 2
Skew: 24 degrees
Number of Main Spans: 4
Main Structure Type: Stringer/Multi-beam or Girder
Main Structure Material: Steel Continuous
Number of Approach Spans: None
Approach Structure Type: None
Approach Structure Material: None
Condition
Inspection Date: November 2022
Deck Condition: Good
Superstructure Condition: Excellent
Substructure Condition: Excellent
Channel Condition: Good
Culvert: Not Applicable
NBI Year: 2024
Bridge Information
Coming Soon
References
Coming Soon
