US Bridges

Al - 38 East over Cahaba River

Fair

Jefferson County, Alabama · Jeff/Shelby Co. Ln. · Structure no. 015301

Built
1962
63 years old, rebuilt 1991
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
407 ft
3 main spans
Daily traffic
38,675
2024 count
Owner
State
State Highway Agency

About this bridge

Al - 38 East over Cahaba River is a steel continuous stringer/multi-beam or girder carrying Al - 38 East over Cahaba River in Jefferson County, Alabama. It was built in 1962 and reconstructed in 1991, so it is 63 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 38,675 vehicles a day, roughly 13% of them trucks, projected to reach 50,871 by 2044. The structure is 407 ft (124.1 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesAl - 38 East
CrossesCahaba River
LocationJeff/Shelby Co. Ln.
RouteU.S. Route 280
StateAlabama
Coordinates33.43167, -86.71333
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHS 20
Structure length407 ft (124.1 m)
Longest span80 ft (24.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,675 (2024)
Projected traffic50,871 by 2044
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$4.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al - 38 East over Cahaba River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1991.

What condition is Al - 38 East 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 March 2024.

How much traffic does Al - 38 East over Cahaba River carry?

About 38,675 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Al - 38 East over Cahaba River?

The structure is 407 ft (124.1 m) long with a longest span of 80 ft (24.4 m) and a deck 44 ft wide.

Who owns Al - 38 East over Cahaba River?

It is owned by the State Highway Agency.