US Bridges

CO Rt 29 over Coal Creek

Fair

DeKalb County, Alabama · 1 MI S CO Rt 26 T9SR6E · Structure no. 011628

Built
1976
49 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
108
2024 count
Owner
County
County Highway Agency

About this bridge

CO Rt 29 over Coal Creek is a concrete channel beam carrying CO Rt 29 over Coal Creek in DeKalb County, Alabama. It was built in 1976, so it is 49 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 108 vehicles a day, roughly 5% of them trucks, projected to reach 161 by 2044. The structure is 24 ft (7.3 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCO Rt 29
CrossesCoal Creek
Location1 MI S CO Rt 26 T9SR6E
RouteCounty Highway 21
StateAlabama
Coordinates34.2268, -86.00092
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.8 US tons
Inventory rating30.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2024)
Projected traffic161 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$260,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Rt 29 over Coal Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is CO Rt 29 over Coal 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 October 2024.

How much traffic does CO Rt 29 over Coal Creek carry?

About 108 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CO Rt 29 over Coal Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns CO Rt 29 over Coal Creek?

It is owned by the County Highway Agency.