US Bridges

Carson Road over Cunningham Crk Tributary

Fair

Jefferson County, Alabama · 100 NE Red Hollow RD · Structure no. 016682

Built
1968
57 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
5,725
2025 count
Owner
County
County Highway Agency

About this bridge

Carson Road over Cunningham Crk Tributary is a concrete continuous culvert carrying Carson Road over Cunningham Crk Tributary in Jefferson County, Alabama. It was built in 1968, so it is 57 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 5,725 vehicles a day, roughly 16% of them trucks, projected to reach 9,000 by 2045. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCarson Road
CrossesCunningham Crk Tributary
Location100 NE Red Hollow RD
RouteCounty Highway 0
CountyJefferson County
StateAlabama
Coordinates33.65523, -86.72582
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating59.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 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 traffic5,725 (2025)
Projected traffic9,000 by 2045
Trucks16%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost$1.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carson Road over Cunningham Crk Tributary built?

It was built in 1968, making it 57 years old in 2025.

What condition is Carson Road over Cunningham Crk Tributary 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 January 2025.

How much traffic does Carson Road over Cunningham Crk Tributary carry?

About 5,725 vehicles per day (2025 count), of which roughly 16% are trucks.

How long is Carson Road over Cunningham Crk Tributary?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns Carson Road over Cunningham Crk Tributary?

It is owned by the County Highway Agency.