I - 59 North over I20 Ramp A*b
FairJefferson County, Alabama · I59 * I20 Interchange · Structure no. 011090
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 292 ft
- 4 main spans
- Daily traffic
- 66,700
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I - 59 North over I20 Ramp A*b is a steel continuous stringer/multi-beam or girder carrying I - 59 North over I20 Ramp A*b in Jefferson County, Alabama. It was built in 1974, so it is 51 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 66,700 vehicles a day, roughly 11% of them trucks, projected to reach 82,522 by 2044. The structure is 292 ft (89 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I - 59 North over I20 Ramp A*b built?
It was built in 1974, making it 51 years old in 2025.
What condition is I - 59 North over I20 Ramp A*b 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 April 2024.
How much traffic does I - 59 North over I20 Ramp A*b carry?
About 66,700 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is I - 59 North over I20 Ramp A*b?
The structure is 292 ft (89 m) long with a longest span of 85 ft (25.9 m) and a deck 54 ft wide.
Who owns I - 59 North over I20 Ramp A*b?
It is owned by the State Highway Agency.