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Redstone Road over Pine River

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

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

Redstone Road over Pine River in Midland County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 1,074 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 77 of the 140 inventoried bridges in Midland County rated fair (55.0%); 24 (17.1%) 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 133 ft
Location	0.2 Mi E of Pine River Rd
NBI structure number	000000000006927
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
M-20 EB over Tittabawassee River	2019	21,358	Good
M-20 WB over Tittabawassee River	2018	21,350	Good
N Saginaw Road over Sturgeon Creek	1931	20,000	Fair
Jefferson Rd over US-10	1960	18,005	Fair
N Saginaw Road over State Drain	1931	17,000	Fair
M-20 over Prairie Creek	1938	16,168	Fair