US Bridges

Brownsboro RD over Flint River (relief)

Fair

Madison County, Alabama · 0.25 MI NE US HWY 72 E · Structure no. 001864

Built
1938
87 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
117 ft
8 main spans
Daily traffic
450
1992 count
Owner
County
County Highway Agency

About this bridge

Brownsboro RD over Flint River (relief) is a concrete slab carrying Brownsboro RD over Flint River (relief) in Madison County, Alabama. It was built in 1938, so it is 87 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 450 vehicles a day, roughly 1% of them trucks, projected to reach 780 by 2035. The structure is 117 ft (35.7 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBrownsboro RD
CrossesFlint River (relief)
Location0.25 MI NE US HWY 72 E
RouteCounty Highway 306
CountyMadison County
StateAlabama
Coordinates34.74922, -86.44464
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length117 ft (35.7 m)
Longest span17 ft (5.2 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (1992)
Projected traffic780 by 2035
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$675,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brownsboro RD over Flint River (relief) built?

It was built in 1938, making it 87 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 450 vehicles per day (1992 count), of which roughly 1% are trucks.

How long is Brownsboro RD over Flint River (relief)?

The structure is 117 ft (35.7 m) long with a longest span of 17 ft (5.2 m) and a deck 20 ft wide.

Who owns Brownsboro RD over Flint River (relief)?

It is owned by the County Highway Agency.