Home › Michigan › Cass County › US-12 over Christiana Creek

US-12 over Christiana Creek

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

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

US-12 over Christiana Creek 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 superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1941 and reconstructed in 1993, making it 84 years old at the 2025 inventory.
It carries about 8,072 vehicles a day (traffic count year 2007).
Its listed owner is the state 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 single box beam
Length	about 44 ft
Location	In Adamsville
NBI structure number	000000000001432
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 Brandywine Creek	1982	7,438	Fair
M-62 over Dowagiac Creek	1950	7,355	Fair
US-12 over Valley Creek	2011	7,350	Good
M-51 over Dowagiac River	1952	6,146	Fair