US Bridges

US 431; SR 1 over Flint River Relief #4

Good

Madison County, Alabama · 0.6 MI S Flint River · Structure no. 013222

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
204 ft
6 main spans
Daily traffic
11,225
2023 count
Owner
State
State Highway Agency

About this bridge

US 431; SR 1 over Flint River Relief #4 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 431; SR 1 over Flint River Relief #4 in Madison County, Alabama. It was built in 1984, so it is 41 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,225 vehicles a day, roughly 8% of them trucks, projected to reach 15,715 by 2043. The structure is 204 ft (62.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 431; SR 1
CrossesFlint River Relief #4
Location0.6 MI S Flint River
RouteU.S. Route 431
StateAlabama
Coordinates34.63132, -86.46198
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span34 ft (10.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,225 (2023)
Projected traffic15,715 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
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 proposedNone recorded
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 431; SR 1 over Flint River Relief #4 built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 431; SR 1 over Flint River Relief #4 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does US 431; SR 1 over Flint River Relief #4 carry?

About 11,225 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 431; SR 1 over Flint River Relief #4?

The structure is 204 ft (62.2 m) long with a longest span of 34 ft (10.4 m) and a deck 43 ft wide.

Who owns US 431; SR 1 over Flint River Relief #4?

It is owned by the State Highway Agency.