US Bridges

US 90 over Bay Branch

Fair

Baldwin County, Alabama · 2 MI E JCT SR 181 · Structure no. 010558

Built
1971
54 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
6,692
2023 count
Owner
State
State Highway Agency

About this bridge

US 90 over Bay Branch is a concrete culvert carrying US 90 over Bay Branch in Baldwin County, Alabama. It was built in 1971, so it is 54 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 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 6,692 vehicles a day, roughly 3% of them trucks, projected to reach 10,038 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS 90
CrossesBay Branch
Location2 MI E JCT SR 181
RouteU.S. Route 90
StateAlabama
Coordinates30.64628, -87.82098
Functional classRural Major Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating36.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length31 ft (9.4 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 traffic6,692 (2023)
Projected traffic10,038 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$689,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 90 over Bay Branch built?

It was built in 1971, making it 54 years old in 2025.

What condition is US 90 over Bay 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 November 2024.

How much traffic does US 90 over Bay Branch carry?

About 6,692 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 90 over Bay Branch?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns US 90 over Bay Branch?

It is owned by the State Highway Agency.