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US431; SR1; SR79 over Tennessee River

Marshall County, Alabama · rated Fair in the 2025 National Bridge Inventory

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

US431; SR1; SR79 over Tennessee River in Marshall 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 1994, making it 31 years old at the 2025 inventory.
It carries about 9,976 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 92 of the 171 inventoried bridges in Marshall County rated fair (53.8%); 15 (8.8%) 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 stringer or multi-beam girder
Length	about 2,883 ft
Location	City of Guntersville
NBI structure number	015972
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 431 over Guntersville Lake	1938	35,218	Fair
US 431 over Turkey Creek	1952	31,175	Fair
US 431 over Drum Creek	1952	30,151	Fair
US 431 over Branch	1930	16,982	Fair
SR 69 over Browns Creek	1941	15,881	Fair
SR 69 over Branch	1934	12,904	Good