US Bridges

CO RD 20 over Autauga Creek

Good

Autauga County, Alabama · CO.RD.20 · Structure no. 007361

Built
1961
64 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
74 ft
5 main spans
Daily traffic
338
2004 count
Owner
County
County Highway Agency

About this bridge

CO RD 20 over Autauga Creek is a concrete culvert carrying CO RD 20 over Autauga Creek in Autauga County, Alabama. It was built in 1961, so it is 64 years old, older 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 338 vehicles a day, roughly 10% of them trucks, projected to reach 559 by 2029. The structure is 74 ft (22.6 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCO RD 20
CrossesAutauga Creek
LocationCO.RD.20
RouteCounty Highway 20
StateAlabama
Coordinates32.65446, -86.58549
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating32.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length74 ft (22.6 m)
Longest span14 ft (4.3 m)
Deck width31 ft (9.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic338 (2004)
Projected traffic559 by 2029
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$626,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 20 over Autauga Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is CO RD 20 over Autauga 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 October 2024.

How much traffic does CO RD 20 over Autauga Creek carry?

About 338 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is CO RD 20 over Autauga Creek?

The structure is 74 ft (22.6 m) long with a longest span of 14 ft (4.3 m) and a deck 31 ft wide.

Who owns CO RD 20 over Autauga Creek?

It is owned by the County Highway Agency.