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Al - 4 (US 78) over Wolf Creek

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

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

Al - 4 (US 78) over Wolf Creek in St. Clair County, Alabama, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2014, making it 11 years old at the 2025 inventory.
It carries about 7,272 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 48 of the 183 inventoried bridges in St. Clair County rated good (26.2%); 3 (1.6%) 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 223 ft
Location	.6 Mi. E of I20 Eden Exit
NBI structure number	020382
Condition class	Good

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