US Bridges

I-10 WB * EB over South Carolina ST

Fair

Mobile County, Alabama · 3.1 MI E SR 163 · Structure no. 014755

Built
1966
59 years old, rebuilt 1989
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
160 ft
4 main spans
Daily traffic
76,852
2022 count
Owner
State
State Highway Agency

About this bridge

I-10 WB * EB over South Carolina ST is a concrete tee beam carrying I-10 WB * EB over South Carolina ST in Mobile County, Alabama. It was built in 1966 and reconstructed in 1989, so it is 59 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 76,852 vehicles a day, roughly 13% of them trucks, projected to reach 115,278 by 2042. The structure is 160 ft (48.8 m) long and 174 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-10 WB * EB
CrossesSouth Carolina ST
Location3.1 MI E SR 163
RouteInterstate 10
CountyMobile County
StateAlabama
Coordinates30.66869, -88.04881
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.8 US tons
Inventory rating41.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span55 ft (16.8 m)
Deck width174 ft (53 m)
Roadway width166 ft (50.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,852 (2022)
Projected traffic115,278 by 2042
Trucks13%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-10 WB * EB over South Carolina ST built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1989.

What condition is I-10 WB * EB over South Carolina ST 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 April 2024.

How much traffic does I-10 WB * EB over South Carolina ST carry?

About 76,852 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I-10 WB * EB over South Carolina ST?

The structure is 160 ft (48.8 m) long with a longest span of 55 ft (16.8 m) and a deck 174 ft wide.

Who owns I-10 WB * EB over South Carolina ST?

It is owned by the State Highway Agency.