US Bridges

US 90 over Spring Branch

Fair

Mobile County, Alabama · 2.1 MI E SR 193 · Structure no. 003692

Built
1950
75 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
24,668
2023 count
Owner
State
State Highway Agency

About this bridge

US 90 over Spring Branch is a concrete culvert carrying US 90 over Spring Branch in Mobile County, Alabama. It was built in 1950, so it is 75 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 24,668 vehicles a day, roughly 3% of them trucks, projected to reach 37,002 by 2043. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 90
CrossesSpring Branch
Location2.1 MI E SR 193
RouteU.S. Route 90
CountyMobile County
StateAlabama
Coordinates30.61757, -88.15788
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.6 US tons
Inventory rating33.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,668 (2023)
Projected traffic37,002 by 2043
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 90 over Spring Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is US 90 over Spring Branch 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 July 2024.

How much traffic does US 90 over Spring Branch carry?

About 24,668 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 90 over Spring Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns US 90 over Spring Branch?

It is owned by the State Highway Agency.