US Bridges

SR 20 over Town Creek Relief

Good

Colbert County, Alabama · 8.2 M E JCT SR 20 & SR157 · Structure no. 011037

Built
1934
91 years old, rebuilt 1974
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
7,420
2024 count
Owner
State
State Highway Agency

About this bridge

SR 20 over Town Creek Relief is a concrete culvert carrying SR 20 over Town Creek Relief in Colbert County, Alabama. It was built in 1934 and reconstructed in 1974, so it is 91 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 7,420 vehicles a day, roughly 20% of them trucks, projected to reach 9,994 by 2033. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 20
CrossesTown Creek Relief
Location8.2 M E JCT SR 20 & SR157
RouteState Highway 20
StateAlabama
Coordinates34.68233, -87.453
Functional classRural Principal Arterial - Other

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating42.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length34 ft (10.4 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 traffic7,420 (2024)
Projected traffic9,994 by 2033
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$1.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 20 over Town Creek Relief built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1974.

What condition is SR 20 over Town Creek Relief 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 November 2024.

How much traffic does SR 20 over Town Creek Relief carry?

About 7,420 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is SR 20 over Town Creek Relief?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns SR 20 over Town Creek Relief?

It is owned by the State Highway Agency.