US Bridges

Al - 7 South over Cahaba Rv

Fair

Jefferson County, Alabama · Trussville Park · Structure no. 000485

Built
1928
97 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
106 ft
4 main spans
Daily traffic
7,580
2023 count
Owner
State
State Highway Agency

About this bridge

Al - 7 South over Cahaba Rv is a concrete tee beam carrying Al - 7 South over Cahaba Rv in Jefferson County, Alabama. It was built in 1928, so it is 97 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 5 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 7,580 vehicles a day, roughly 3% of them trucks, projected to reach 9,931 by 2043. The structure is 106 ft (32.3 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAl - 7 South
CrossesCahaba Rv
LocationTrussville Park
RouteU.S. Route 11
CountyJefferson County
StateAlabama
Coordinates33.62222, -86.6
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length106 ft (32.3 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,580 (2023)
Projected traffic9,931 by 2043
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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$743,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al - 7 South over Cahaba Rv built?

It was built in 1928, making it 97 years old in 2025.

What condition is Al - 7 South over Cahaba Rv 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 2023.

How much traffic does Al - 7 South over Cahaba Rv carry?

About 7,580 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Al - 7 South over Cahaba Rv?

The structure is 106 ft (32.3 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns Al - 7 South over Cahaba Rv?

It is owned by the State Highway Agency.