US Bridges

ST Clair CO 4WY13 over Kelly Branch

Good

St. Clair County, Alabama · 0.1 MI N Prescott Chu · Structure no. 012616

Built
1981
44 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
1,233
2020 count
Owner
County
County Highway Agency

About this bridge

ST Clair CO 4WY13 over Kelly Branch is a concrete culvert carrying ST Clair CO 4WY13 over Kelly Branch in St. Clair County, Alabama. It was built in 1981, so it is 44 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 1,233 vehicles a day, roughly 3% of them trucks, projected to reach 1,832 by 2040. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesST Clair CO 4WY13
CrossesKelly Branch
Location0.1 MI N Prescott Chu
RouteCounty Highway 137
StateAlabama
Coordinates33.56849, -86.44585
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
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 alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating82 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length37 ft (11.3 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 traffic1,233 (2020)
Projected traffic1,832 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedNone recorded
Estimated improvement cost$642,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Clair CO 4WY13 over Kelly Branch built?

It was built in 1981, making it 44 years old in 2025.

What condition is ST Clair CO 4WY13 over Kelly Branch 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 January 2025.

How much traffic does ST Clair CO 4WY13 over Kelly Branch carry?

About 1,233 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is ST Clair CO 4WY13 over Kelly Branch?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m).

Who owns ST Clair CO 4WY13 over Kelly Branch?

It is owned by the County Highway Agency.