US Bridges

I-165 NB to I65 SB over I-65

Fair

Mobile County, Alabama · I-165 * I-65 Interchange · Structure no. 015587

Built
1993
32 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,018 ft
9 main spans
Daily traffic
11,857
2021 count
Owner
State
State Highway Agency

About this bridge

I-165 NB to I65 SB over I-65 is a steel continuous stringer/multi-beam or girder carrying I-165 NB to I65 SB over I-65 in Mobile County, Alabama. It was built in 1993, so it is 32 years old, younger 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 11,857 vehicles a day, roughly 6% of them trucks, projected to reach 17,786 by 2041. The structure is 2,018 ft (615.1 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-165 NB to I65 SB
CrossesI-65
LocationI-165 * I-65 Interchange
RouteInterstate 165
CountyMobile County
StateAlabama
Coordinates30.75046, -88.09746
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 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 rating42.5 US tons
Inventory rating25.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9 (+13 approach)
Design loadHS 20
Structure length2,018 ft (615.1 m)
Longest span180 ft (54.9 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,857 (2021)
Projected traffic17,786 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-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$21.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-165 NB to I65 SB over I-65 built?

It was built in 1993, making it 32 years old in 2025.

What condition is I-165 NB to I65 SB over I-65 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 December 2024.

How much traffic does I-165 NB to I65 SB over I-65 carry?

About 11,857 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I-165 NB to I65 SB over I-65?

The structure is 2,018 ft (615.1 m) long with a longest span of 180 ft (54.9 m) and a deck 47 ft wide.

Who owns I-165 NB to I65 SB over I-65?

It is owned by the State Highway Agency.