US Bridges

Brownsboro RD over Flint River

FairPosted for load

Madison County, Alabama · 0.2 MI NE US HWY 72 E · Structure no. 003923

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
296 ft
7 main spans
Daily traffic
450
1992 count
Owner
County
County Highway Agency

About this bridge

Brownsboro RD over Flint River is a concrete tee beam carrying Brownsboro RD over Flint River in Madison County, Alabama. It was built in 1950, so it is 75 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 450 vehicles a day, roughly 1% of them trucks, projected to reach 790 by 2037. The structure is 296 ft (90.2 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesBrownsboro RD
CrossesFlint River
Location0.2 MI NE US HWY 72 E
RouteCounty Highway 306
CountyMadison County
StateAlabama
Coordinates34.74933, -86.44713
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating25.7 US tons
Inventory rating15.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length296 ft (90.2 m)
Longest span50 ft (15.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (1992)
Projected traffic790 by 2037
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brownsboro RD over Flint River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Brownsboro RD over 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 March 2023.

How much traffic does Brownsboro RD over Flint River carry?

About 450 vehicles per day (1992 count), of which roughly 1% are trucks.

How long is Brownsboro RD over Flint River?

The structure is 296 ft (90.2 m) long with a longest span of 50 ft (15.2 m) and a deck 24 ft wide.

Who owns Brownsboro RD over Flint River?

It is owned by the County Highway Agency.