US Bridges

CO 109-AIRPORT RD over I-20

Fair

Calhoun County, Alabama · 2.3 MI W JCT SR 21 · Structure no. 009222

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
350 ft
4 main spans
Daily traffic
2,950
2022 count
Owner
State
State Highway Agency

About this bridge

CO 109-AIRPORT RD over I-20 is a concrete continuous tee beam carrying CO 109-AIRPORT RD over I-20 in Calhoun County, Alabama. It was built in 1967, so it is 58 years old, older 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 2,950 vehicles a day, roughly 4% of them trucks, projected to reach 4,130 by 2042. The structure is 350 ft (106.7 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCO 109-AIRPORT RD
CrossesI-20
Location2.3 MI W JCT SR 21
RouteCounty Highway 109
CountyCalhoun County
StateAlabama
Coordinates33.59013, -85.86562
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length350 ft (106.7 m)
Longest span96 ft (29.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2022)
Projected traffic4,130 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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$2.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was CO 109-AIRPORT RD over I-20 built?

It was built in 1967, making it 58 years old in 2025.

What condition is CO 109-AIRPORT RD over I-20 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 CO 109-AIRPORT RD over I-20 carry?

About 2,950 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is CO 109-AIRPORT RD over I-20?

The structure is 350 ft (106.7 m) long with a longest span of 96 ft (29.3 m) and a deck 27 ft wide.

Who owns CO 109-AIRPORT RD over I-20?

It is owned by the State Highway Agency.