US Bridges

Carson RD over Dry Creek

Fair

Jefferson County, Alabama · Carson RD * Sun Valley RD · Structure no. 003915

Built
1950
75 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
5,000
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carson RD over Dry Creek is a concrete culvert carrying Carson RD over Dry Creek in Jefferson County, Alabama. It was built in 1950, so it is 75 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 5,000 vehicles a day, roughly 10% of them trucks, projected to reach 7,500 by 2036. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCarson RD
CrossesDry Creek
LocationCarson RD * Sun Valley RD
RouteCity Street 0
CountyJefferson County
StateAlabama
Coordinates33.63658, -86.70265
Functional classUrban Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.1 US tons
Inventory rating25.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2016)
Projected traffic7,500 by 2036
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$472,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carson RD over Dry Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Carson RD over Dry Creek 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 August 2024.

How much traffic does Carson RD over Dry Creek carry?

About 5,000 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Carson RD over Dry Creek?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m).

Who owns Carson RD over Dry Creek?

It is owned by the City or Municipal Highway Agency.