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Al - 34 over Coosa River

St. Clair County, Alabama · rated Fair in the 2025 National Bridge Inventory

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

Al - 34 over Coosa River in St. Clair County, Alabama, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1963, making it 62 years old at the 2025 inventory.
It carries about 4,980 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 132 of the 183 inventoried bridges in St. Clair County rated fair (72.1%); 3 (1.6%) 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	Continuous steel girder and floorbeam
Length	about 1,266 ft
Location	St Clair Talledega Co Ln
NBI structure number	007979
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 20 over Little Cahaba River	1961	65,150	Fair
I - 20 over Al - 4 ( US 78)	2005	53,023	Fair
I20 over Head Springs	1961	51,890	Fair
I - 20 over Kelly Creek	2010	51,890	Good
I - 20 over Cook Springs Road	2010	51,890	Good
I - 20 over Cane Creek	1991	51,010	Fair