US Bridges

US 31 over Thompson Branch

Fair

Escambia County, Alabama · 1.9 MI S US 29 · Structure no. 013568

Built
1985
40 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
3,981
2022 count
Owner
State
State Highway Agency

About this bridge

US 31 over Thompson Branch is a concrete culvert carrying US 31 over Thompson Branch in Escambia County, Alabama. It was built in 1985, so it is 40 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 3,981 vehicles a day, roughly 5% of them trucks, projected to reach 5,972 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 31
CrossesThompson Branch
Location1.9 MI S US 29
RouteU.S. Route 31
StateAlabama
Coordinates31.01574, -87.29254
Functional classRural Minor 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating85.8 US tons
Inventory rating51.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic3,981 (2022)
Projected traffic5,972 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost$460,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 31 over Thompson Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 31 over Thompson 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 January 2024.

How much traffic does US 31 over Thompson Branch carry?

About 3,981 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is US 31 over Thompson Branch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US 31 over Thompson Branch?

It is owned by the State Highway Agency.