US Bridges

East Drive over Twelvemile Creek

Fair

Mobile County, Alabama · 0.4 MI S Old Shell RD · Structure no. 010547

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
50 ft
4 main spans
Daily traffic
2,005
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

East Drive over Twelvemile Creek is a concrete culvert carrying East Drive over Twelvemile Creek in Mobile County, Alabama. It was built in 1971, so it is 54 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 2,005 vehicles a day, roughly 1% of them trucks, projected to reach 3,008 by 2043. The structure is 50 ft (15.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesEast Drive
CrossesTwelvemile Creek
Location0.4 MI S Old Shell RD
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.68443, -88.18002
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 rating61.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length50 ft (15.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,005 (2023)
Projected traffic3,008 by 2043
Trucks1%
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

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$625,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Drive over Twelvemile Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is East Drive over Twelvemile 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 September 2023.

How much traffic does East Drive over Twelvemile Creek carry?

About 2,005 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is East Drive over Twelvemile Creek?

The structure is 50 ft (15.1 m) long with a longest span of 12 ft (3.7 m).

Who owns East Drive over Twelvemile Creek?

It is owned by the City or Municipal Highway Agency.