US Bridges

AL.21 over Salt Creek

Good

Talladega County, Alabama · 5.7 MI S of Oxford · Structure no. 017526

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
5 main spans
Daily traffic
11,296
2023 count
Owner
State
State Highway Agency

About this bridge

AL.21 over Salt Creek is a prestressed concrete stringer/multi-beam or girder carrying AL.21 over Salt Creek in Talladega County, Alabama. It was built in 2000, so it is 25 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 11,296 vehicles a day, roughly 6% of them trucks, projected to reach 15,814 by 2043. The structure is 196 ft (59.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAL.21
CrossesSalt Creek
Location5.7 MI S of Oxford
RouteState Highway 21
StateAlabama
Coordinates33.53789, -85.92673
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.5 US tons
Inventory rating41.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,296 (2023)
Projected traffic15,814 by 2043
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was AL.21 over Salt Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is AL.21 over Salt Creek 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 September 2024.

How much traffic does AL.21 over Salt Creek carry?

About 11,296 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is AL.21 over Salt Creek?

The structure is 196 ft (59.7 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns AL.21 over Salt Creek?

It is owned by the State Highway Agency.