US Bridges

ST Alban DR over Unnamed Tributary

Good

Madison County, Alabama · 1.0M W/US231 · Structure no. 015856

Built
1990
35 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
560
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

ST Alban DR over Unnamed Tributary is a concrete culvert carrying ST Alban DR over Unnamed Tributary in Madison County, Alabama. It was built in 1990, so it is 35 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 560 vehicles a day, roughly 1% of them trucks, projected to reach 1,097 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesST Alban DR
CrossesUnnamed Tributary
Location1.0M W/US231
RouteCity Street 0
StateAlabama
Coordinates34.61684, -86.56686
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.5 US tons
Inventory rating30.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2022)
Projected traffic1,097 by 2043
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$457,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Alban DR over Unnamed Tributary built?

It was built in 1990, making it 35 years old in 2025.

What condition is ST Alban DR over Unnamed Tributary 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 August 2023.

How much traffic does ST Alban DR over Unnamed Tributary carry?

About 560 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is ST Alban DR over Unnamed Tributary?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns ST Alban DR over Unnamed Tributary?

It is owned by the City or Municipal Highway Agency.