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I-69 WB over Looking Glass River

Shiawassee County, Michigan · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

I-69 WB over Looking Glass River in Shiawassee County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1961 and reconstructed in 2010, making it 64 years old at the 2025 inventory.
It carries about 192,000 vehicles a day (traffic count year 2011).
Its listed owner is the state highway agency.
It is one of 76 of the 163 inventoried bridges in Shiawassee County rated fair (46.6%); 15 (9.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 40 ft
Location	5.0 Mi NE of M-52
NBI structure number	000000000009733
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.

Bridge	Built	Vehicles/day	Condition
I-69 EB over Looking Glass River	1961	192,000	Fair
I-69 EB over Holly Drain	1961	192,000	Fair
I-69 WB over Holly Drain	1961	192,000	Fair
Britton Rd over I-69	1989	25,000	Fair
M-21 over Shiawassee River	1970	22,689	Fair
I-69 EB over Vermillion Creek	1989	20,138	Fair