US Bridges

Bay Br to I-165 SB over Bay Bridge RD

Good

Mobile County, Alabama · I-165 @ Bay Bridge RD · Structure no. 015575

Built
1993
32 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
826 ft
7 main spans
Daily traffic
2,706
2023 count
Owner
State
State Highway Agency

About this bridge

Bay Br to I-165 SB over Bay Bridge RD is a prestressed concrete continuous stringer/multi-beam or girder carrying Bay Br to I-165 SB over Bay Bridge RD 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,706 vehicles a day, roughly 14% of them trucks, projected to reach 4,059 by 2043. The structure is 826 ft (251.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBay Br to I-165 SB
CrossesBay Bridge RD
LocationI-165 @ Bay Bridge RD
RouteInterstate 165
StateAlabama
Coordinates30.72704, -88.0726
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.3 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7 (+4 approach)
Design loadHS 20
Structure length826 ft (251.8 m)
Longest span76 ft (23.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,706 (2023)
Projected traffic4,059 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$7.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bay Br to I-165 SB over Bay Bridge RD built?

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

What condition is Bay Br to I-165 SB over Bay Bridge RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Bay Br to I-165 SB over Bay Bridge RD carry?

About 2,706 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Bay Br to I-165 SB over Bay Bridge RD?

The structure is 826 ft (251.8 m) long with a longest span of 76 ft (23.2 m) and a deck 41 ft wide.

Who owns Bay Br to I-165 SB over Bay Bridge RD?

It is owned by the State Highway Agency.