US Bridges

Al. 158 W.B. over Us. 45

Good

Mobile County, Alabama · US 45 @ Al. 158 · Structure no. 018560

Built
2007
18 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
247 ft
1 main span
Daily traffic
7,816
2021 count
Owner
State
State Highway Agency

About this bridge

Al. 158 W.B. over Us. 45 is a prestressed concrete stringer/multi-beam or girder carrying Al. 158 W.B. over Us. 45 in Mobile County, Alabama. It was built in 2007, so it is 18 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 7,816 vehicles a day, roughly 12% of them trucks, projected to reach 11,724 by 2041. The structure is 247 ft (75.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAl. 158 W.B.
CrossesUs. 45
LocationUS 45 @ Al. 158
RouteState Highway 158
StateAlabama
Coordinates30.80272, -88.15122
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating43.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length247 ft (75.4 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,816 (2021)
Projected traffic11,724 by 2041
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$2.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Al. 158 W.B. over Us. 45 built?

It was built in 2007, making it 18 years old in 2025.

What condition is Al. 158 W.B. over Us. 45 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 April 2023.

How much traffic does Al. 158 W.B. over Us. 45 carry?

About 7,816 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Al. 158 W.B. over Us. 45?

The structure is 247 ft (75.4 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns Al. 158 W.B. over Us. 45?

It is owned by the State Highway Agency.