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Jefferson Ave over Amtrak

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

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

Jefferson Ave over Amtrak in Cass 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 1982, making it 43 years old at the 2025 inventory.
It carries about 680 vehicles a day (traffic count year 1982).
Its listed owner is a city or municipal highway agency.
It is one of 32 of the 53 inventoried bridges in Cass County rated fair (60.4%); 8 (15.1%) 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 multiple box beam
Length	about 109 ft
Location	0.1 Mi East of S Front St
NBI structure number	000000000001463
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US-12 over M-60	1960	9,010	Fair
M-51 over Dowagiac Creek	1949	8,127	Fair
US-12 over Christiana Creek	1941	8,072	Fair
US-12 over Brandywine Creek	1982	7,438	Fair
M-62 over Dowagiac Creek	1950	7,355	Fair
US-12 over Valley Creek	2011	7,350	Good