US Bridges

Carson Road over Black Creek Tributary

Good

Jefferson County, Alabama · 100 S Yarbrough RD · Structure no. 016691

Built
1979
46 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
17,505
2025 count
Owner
County
County Highway Agency

About this bridge

Carson Road over Black Creek Tributary is a concrete culvert carrying Carson Road over Black Creek Tributary in Jefferson County, Alabama. It was built in 1979, so it is 46 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 17,505 vehicles a day, roughly 22% of them trucks, projected to reach 24,500 by 2045. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCarson Road
CrossesBlack Creek Tributary
Location100 S Yarbrough RD
RouteCounty Highway 224
StateAlabama
Coordinates33.61935, -86.78932
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating57.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,505 (2025)
Projected traffic24,500 by 2045
Trucks22%
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 proposedNone recorded
Estimated improvement cost$541,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carson Road over Black Creek Tributary built?

It was built in 1979, making it 46 years old in 2025.

What condition is Carson Road over Black Creek Tributary 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 January 2025.

How much traffic does Carson Road over Black Creek Tributary carry?

About 17,505 vehicles per day (2025 count), of which roughly 22% are trucks.

How long is Carson Road over Black Creek Tributary?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.6 m).

Who owns Carson Road over Black Creek Tributary?

It is owned by the County Highway Agency.