I - 20/59 North over 18th * 19th Str
FairJefferson County, Alabama · I59* 18th * 19th Sts · Structure no. 011758
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 659 ft
- 9 main spans
- Daily traffic
- 23,555
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I - 20/59 North over 18th * 19th Str is a steel continuous stringer/multi-beam or girder carrying I - 20/59 North over 18th * 19th Str in Jefferson County, Alabama. It was built in 1977, so it is 48 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 23,555 vehicles a day, roughly 17% of them trucks, projected to reach 29,142 by 2043. The structure is 659 ft (200.9 m) long and 41 ft wide.
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 - 20/59 North over 18th * 19th Str built?
It was built in 1977, making it 48 years old in 2025.
What condition is I - 20/59 North over 18th * 19th Str 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 September 2023.
How much traffic does I - 20/59 North over 18th * 19th Str carry?
About 23,555 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is I - 20/59 North over 18th * 19th Str?
The structure is 659 ft (200.9 m) long with a longest span of 80 ft (24.4 m) and a deck 41 ft wide.
Who owns I - 20/59 North over 18th * 19th Str?
It is owned by the State Highway Agency.