US Bridges

I-65 over Main Street

Fair

Mobile County, Alabama · 0.6 MI N US 45 · Structure no. 015502

Built
1965
60 years old, rebuilt 1992
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
169 ft
3 main spans
Daily traffic
78,895
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 over Main Street is a concrete continuous tee beam carrying I-65 over Main Street in Mobile County, Alabama. It was built in 1965 and reconstructed in 1992, so it is 60 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 78,895 vehicles a day, roughly 11% of them trucks, projected to reach 118,343 by 2042. The structure is 169 ft (51.5 m) long and 149 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-65
CrossesMain Street
Location0.6 MI N US 45
RouteInterstate 65
CountyMobile County
StateAlabama
Coordinates30.74645, -88.10106
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 alignment7: Better than present minimum criteria
Operating rating43.8 US tons
Inventory rating27.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span64 ft (19.5 m)
Deck width149 ft (45.3 m)
Roadway width143 ft (43.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,895 (2022)
Projected traffic118,343 by 2042
Trucks11%
Lanes on structure8
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 proposedNone recorded
Estimated improvement cost$6.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-65 over Main Street built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1992.

What condition is I-65 over Main Street 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 2024.

How much traffic does I-65 over Main Street carry?

About 78,895 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is I-65 over Main Street?

The structure is 169 ft (51.5 m) long with a longest span of 64 ft (19.5 m) and a deck 149 ft wide.

Who owns I-65 over Main Street?

It is owned by the State Highway Agency.