US Bridges

Ramp 45 to SR 20 over RAMP43 Into Airport RD

Good

Madison County, Alabama · .3 M W JCT I565*AIRPRT RD · Structure no. 014778

Built
1989
36 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
3 main spans
Daily traffic
2,310
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp 45 to SR 20 over RAMP43 Into Airport RD is a steel continuous stringer/multi-beam or girder carrying Ramp 45 to SR 20 over RAMP43 Into Airport RD in Madison County, Alabama. It was built in 1989, so it is 36 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 2,310 vehicles a day, roughly 10% of them trucks, projected to reach 3,234 by 2042. The structure is 242 ft (73.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRamp 45 to SR 20
CrossesRAMP43 Into Airport RD
Location.3 M W JCT I565*AIRPRT RD
RouteInterstate 565
CountyMadison County
StateAlabama
Coordinates34.66833, -86.76333
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.9 US tons
Inventory rating52.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,310 (2022)
Projected traffic3,234 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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$1.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp 45 to SR 20 over RAMP43 Into Airport RD built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ramp 45 to SR 20 over RAMP43 Into Airport RD 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 September 2023.

How much traffic does Ramp 45 to SR 20 over RAMP43 Into Airport RD carry?

About 2,310 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ramp 45 to SR 20 over RAMP43 Into Airport RD?

The structure is 242 ft (73.8 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns Ramp 45 to SR 20 over RAMP43 Into Airport RD?

It is owned by the State Highway Agency.