US Bridges

SR21 / US231 over Speed Creek

Fair

Coosa County, Alabama · 2.2 MI N Elmore CO Line · Structure no. 016293

Built
1995
30 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
2,631
2022 count
Owner
State
State Highway Agency

About this bridge

SR21 / US231 over Speed Creek is a concrete culvert carrying SR21 / US231 over Speed Creek in Coosa County, Alabama. It was built in 1995, so it is 30 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 2,631 vehicles a day, roughly 12% of them trucks, projected to reach 3,683 by 2042. The structure is 45 ft (13.8 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSR21 / US231
CrossesSpeed Creek
Location2.2 MI N Elmore CO Line
RouteU.S. Route 231
CountyCoosa County
StateAlabama
Coordinates32.78439, -86.23414
Functional classRural Principal Arterial - Other

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 inspectionNovember 2023
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 alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.8 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,631 (2022)
Projected traffic3,683 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR21 / US231 over Speed Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is SR21 / US231 over Speed Creek 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 2023.

How much traffic does SR21 / US231 over Speed Creek carry?

About 2,631 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is SR21 / US231 over Speed Creek?

The structure is 45 ft (13.8 m) long with a longest span of 15 ft (4.5 m).

Who owns SR21 / US231 over Speed Creek?

It is owned by the State Highway Agency.