US Bridges

Al - 79 over Wilson Ck

Fair

Jefferson County, Alabama · So. of Marsh Mt. Rd. · Structure no. 006359

Built
1959
66 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
13,050
2024 count
Owner
State
State Highway Agency

About this bridge

Al - 79 over Wilson Ck is a concrete culvert carrying Al - 79 over Wilson Ck in Jefferson County, Alabama. It was built in 1959, so it is 66 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 13,050 vehicles a day, roughly 22% of them trucks, projected to reach 16,146 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAl - 79
CrossesWilson Ck
LocationSo. of Marsh Mt. Rd.
RouteState Highway 79
StateAlabama
Coordinates33.7775, -86.68444
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.7 US tons
Inventory rating47.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,050 (2024)
Projected traffic16,146 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$801,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al - 79 over Wilson Ck built?

It was built in 1959, making it 66 years old in 2025.

What condition is Al - 79 over Wilson Ck 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 - 79 over Wilson Ck carry?

About 13,050 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Al - 79 over Wilson Ck?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Al - 79 over Wilson Ck?

It is owned by the State Highway Agency.