US Bridges

Al 25 over Cahaba River (+)

Fair

Bibb County, Alabama · Centreville · Structure no. 004014

Built
1951
74 years old
Condition
Fair
inspected December 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
501 ft
3 main spans
Daily traffic
4,915
2021 count
Owner
State
State Highway Agency

About this bridge

Al 25 over Cahaba River (+) is a steel continuous girder and floorbeam system carrying Al 25 over Cahaba River (+) in Bibb County, Alabama. It was built in 1951, so it is 74 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 4,915 vehicles a day, roughly 13% of them trucks, projected to reach 6,620 by 2041. The structure is 501 ft (152.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAl 25
CrossesCahaba River (+)
LocationCentreville
RouteState Highway 25
StateAlabama
Coordinates32.94463, -87.14073
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.2 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadH 20
Structure length501 ft (152.7 m)
Longest span140 ft (42.7 m)
Deck width36 ft (10.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,915 (2021)
Projected traffic6,620 by 2041
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$4.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al 25 over Cahaba River (+) built?

It was built in 1951, making it 74 years old in 2025.

What condition is Al 25 over Cahaba 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 December 2024.

How much traffic does Al 25 over Cahaba River (+) carry?

About 4,915 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Al 25 over Cahaba River (+)?

The structure is 501 ft (152.7 m) long with a longest span of 140 ft (42.7 m) and a deck 36 ft wide.

Who owns Al 25 over Cahaba River (+)?

It is owned by the State Highway Agency.