US Bridges

US231; US431; SR1 over West Fork Flint River

Fair

Madison County, Alabama · 2 MI S Tenn State Line · Structure no. 006752

Built
1929
96 years old, rebuilt 1960
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
285 ft
10 main spans
Daily traffic
10,462
2023 count
Owner
State
State Highway Agency

About this bridge

US231; US431; SR1 over West Fork Flint River is a concrete tee beam carrying US231; US431; SR1 over West Fork Flint River in Madison County, Alabama. It was built in 1929 and reconstructed in 1960, so it is 96 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,462 vehicles a day, roughly 8% of them trucks, projected to reach 14,647 by 2043. The structure is 285 ft (86.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS231; US431; SR1
CrossesWest Fork Flint River
Location2 MI S Tenn State Line
RouteU.S. Route 231
StateAlabama
Coordinates34.95833, -86.57
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.5 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length285 ft (86.9 m)
Longest span29 ft (8.8 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,462 (2023)
Projected traffic14,647 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US231; US431; SR1 over West Fork Flint River built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1960.

What condition is US231; US431; SR1 over West Fork Flint River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does US231; US431; SR1 over West Fork Flint River carry?

About 10,462 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US231; US431; SR1 over West Fork Flint River?

The structure is 285 ft (86.9 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns US231; US431; SR1 over West Fork Flint River?

It is owned by the State Highway Agency.