US Bridges

Lister Dairy Road over Swamp

Fair

Mobile County, Alabama · 0.8 MI S I65 · Structure no. 011544

Built
1957
68 years old, rebuilt 1976
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
619
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lister Dairy Road over Swamp is a concrete culvert carrying Lister Dairy Road over Swamp in Mobile County, Alabama. It was built in 1957 and reconstructed in 1976, so it is 68 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 619 vehicles a day, roughly 1% of them trucks, projected to reach 835 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLister Dairy Road
CrossesSwamp
Location0.8 MI S I65
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.89333, -88.01333
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.5 US tons
Inventory rating32.6 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 traffic619 (2023)
Projected traffic835 by 2043
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$281,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lister Dairy Road over Swamp built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1976.

What condition is Lister Dairy Road over Swamp 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 May 2023.

How much traffic does Lister Dairy Road over Swamp carry?

About 619 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Lister Dairy Road over Swamp?

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

Who owns Lister Dairy Road over Swamp?

It is owned by the City or Municipal Highway Agency.