US Bridges

Brownsboro RD over Flint River Relief

Fair

Madison County, Alabama · 0.5 MI NE US HWY 72 E · Structure no. 001352

Built
1935
90 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
880
1992 count
Owner
County
County Highway Agency

About this bridge

Brownsboro RD over Flint River Relief is a concrete tee beam carrying Brownsboro RD over Flint River Relief in Madison County, Alabama. It was built in 1935, so it is 90 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.

It carries about 880 vehicles a day, roughly 1% of them trucks, projected to reach 1,260 by 2035. The structure is 150 ft (45.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBrownsboro RD
CrossesFlint River Relief
Location0.5 MI NE US HWY 72 E
RouteCounty Highway 306
StateAlabama
Coordinates34.75042, -86.44195
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating65 US tons
Inventory rating48.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic880 (1992)
Projected traffic1,260 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brownsboro RD over Flint River Relief built?

It was built in 1935, making it 90 years old in 2025.

What condition is Brownsboro RD over Flint River Relief 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 June 2024.

How much traffic does Brownsboro RD over Flint River Relief carry?

About 880 vehicles per day (1992 count), of which roughly 1% are trucks.

How long is Brownsboro RD over Flint River Relief?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Brownsboro RD over Flint River Relief?

It is owned by the County Highway Agency.