US Bridges

Acton Road over Cahaba River Tributary

Good

Jefferson County, Alabama · 0.1 MI S Cahaba Riverrd · Structure no. 011882

Built
1977
48 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
17,600
2024 count
Owner
County
County Highway Agency

About this bridge

Acton Road over Cahaba River Tributary is a concrete culvert carrying Acton Road over Cahaba River Tributary in Jefferson County, Alabama. It was built in 1977, so it is 48 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 17,600 vehicles a day, roughly 10% of them trucks, projected to reach 24,600 by 2044. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesActon Road
CrossesCahaba River Tributary
Location0.1 MI S Cahaba Riverrd
RouteCounty Highway 531
StateAlabama
Coordinates33.43238, -86.73867
Functional classRural Major 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
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 alignment7: Better than present minimum criteria
Operating rating77.9 US tons
Inventory rating46.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,600 (2024)
Projected traffic24,600 by 2044
Trucks10%
Lanes on structure5
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$893,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Acton Road over Cahaba River Tributary built?

It was built in 1977, making it 48 years old in 2025.

What condition is Acton Road over Cahaba River 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 June 2024.

How much traffic does Acton Road over Cahaba River Tributary carry?

About 17,600 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Acton Road over Cahaba River Tributary?

The structure is 29 ft (8.9 m) long with a longest span of 9 ft (2.6 m).

Who owns Acton Road over Cahaba River Tributary?

It is owned by the County Highway Agency.