US Bridges

Carol ST over Drainage Ditch

Fair

Mobile County, Alabama · 0.4 MI N Old Shell Road · Structure no. 009572

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
29 ft
3 main spans
Daily traffic
101
2024 count
Owner
County
County Highway Agency

About this bridge

Carol ST over Drainage Ditch is a concrete continuous culvert carrying Carol ST over Drainage Ditch in Mobile 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 101 vehicles a day, roughly 4% of them trucks, projected to reach 150 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCarol ST
CrossesDrainage Ditch
Location0.4 MI N Old Shell Road
RouteCounty Highway 0
StateAlabama
Coordinates30.71072, -88.24697
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 alignment7: Better than present minimum criteria
Operating rating37.1 US tons
Inventory rating22.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2024)
Projected traffic150 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$421,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carol ST over Drainage Ditch built?

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

What condition is Carol ST over Drainage Ditch 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 Carol ST over Drainage Ditch carry?

About 101 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Carol ST over Drainage Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.8 m).

Who owns Carol ST over Drainage Ditch?

It is owned by the County Highway Agency.