US Bridges

US 90/COCHRANE Br over Mobile River

Fair

Mobile County, Alabama · 0.2 MI E US 43 · Structure no. 015430

Built
1991
34 years old
Condition
Fair
inspected June 2023
Type
Stayed Girder
Prestressed Concrete Continuous
Length
7,291 ft
3 main spans
Daily traffic
19,190
2022 count
Owner
State
State Highway Agency

About this bridge

US 90/COCHRANE Br over Mobile River is a prestressed concrete continuous stayed girder carrying US 90/COCHRANE Br over Mobile River in Mobile County, Alabama. It was built in 1991, so it is 34 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 19,190 vehicles a day, roughly 11% of them trucks, projected to reach 28,785 by 2042. The structure is 7,291 ft (2,222.3 m) long and 92 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

Location

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CarriesUS 90/COCHRANE Br
CrossesMobile River
Location0.2 MI E US 43
RouteU.S. Route 90
CountyMobile County
StateAlabama
Coordinates30.73399, -88.04476
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.1 US tons
Inventory rating41.4 US tons

Structure

Structure typeStayed Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3 (+30 approach)
Design loadHS 20
Structure length7,291 ft (2,222.3 m)
Longest span780 ft (237.7 m)
Deck width92 ft (28 m)
Roadway width80 ft (24.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,190 (2022)
Projected traffic28,785 by 2042
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed65.2 mi (105 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$154.2 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 90/COCHRANE Br over Mobile River built?

It was built in 1991, making it 34 years old in 2025.

What condition is US 90/COCHRANE Br over Mobile River 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 June 2023.

How much traffic does US 90/COCHRANE Br over Mobile River carry?

About 19,190 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US 90/COCHRANE Br over Mobile River?

The structure is 7,291 ft (2,222.3 m) long with a longest span of 780 ft (237.7 m) and a deck 92 ft wide.

Who owns US 90/COCHRANE Br over Mobile River?

It is owned by the State Highway Agency.