US Bridges

I-65 SB over Alabama Gulf Coast RR

Fair

Mobile County, Alabama · 1.1 MI S US 43 · Structure no. 010195

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
3 main spans
Daily traffic
18,572
2021 count
Owner
State
State Highway Agency

About this bridge

I-65 SB over Alabama Gulf Coast RR is a steel continuous stringer/multi-beam or girder carrying I-65 SB over Alabama Gulf Coast RR in Mobile County, Alabama. It was built in 1970, so it is 55 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 18,572 vehicles a day, roughly 16% of them trucks, projected to reach 27,858 by 2041. The structure is 260 ft (79.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-65 SB
CrossesAlabama Gulf Coast RR
Location1.1 MI S US 43
RouteInterstate 65
CountyMobile County
StateAlabama
Coordinates30.86817, -88.05982
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,572 (2021)
Projected traffic27,858 by 2041
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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$2.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-65 SB over Alabama Gulf Coast RR built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-65 SB over Alabama Gulf Coast RR 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 February 2023.

How much traffic does I-65 SB over Alabama Gulf Coast RR carry?

About 18,572 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is I-65 SB over Alabama Gulf Coast RR?

The structure is 260 ft (79.2 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns I-65 SB over Alabama Gulf Coast RR?

It is owned by the State Highway Agency.