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US-127 SB over Maple River

Gratiot County, Michigan · rated Good in the 2025 National Bridge Inventory

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

US-127 SB over Maple River in Gratiot County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
It was built in 1955 and reconstructed in 2022, making it 70 years old at the 2025 inventory.
It carries about 10,831 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 64 of the 167 inventoried bridges in Gratiot County rated good (38.3%); 22 (13.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 129 ft
Location	1.5 Mi N of Clinton Col
NBI structure number	000000000003079
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US-127 NB over US-127 Br	1961	15,400	Fair
US-127 SB over US-127 Br	1961	15,400	Fair
M-46 & US-127BR over US-127	1961	11,219	Poor
US-127 NB over Maple River	1988	10,831	Fair
US-127 Br over Pine River	1928	10,432	Fair
US-127 NB over N Br Bad River	1987	10,338	Fair