I-20 WB over Alpine RD S-40-63
GoodRichland County, South Carolina · 8 MI NE of Columbia · Structure no. 000000000007727
- Built
- 1983
- 42 years old, rebuilt 2013
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 185 ft
- 3 main spans
- Daily traffic
- 25,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-20 WB over Alpine RD S-40-63 is a steel continuous stringer/multi-beam or girder carrying I-20 WB over Alpine RD S-40-63 in Richland County, South Carolina. It was built in 1983 and reconstructed in 2013, so it is 42 years old, younger than the South Carolina average of 48 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 25,150 vehicles a day, roughly 16% of them trucks, projected to reach 31,186 by 2043. The structure is 185 ft (56.4 m) long and 67 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-20 WB over Alpine RD S-40-63 built?
It was built in 1983, making it 42 years old in 2025. It was reconstructed in 2013.
What condition is I-20 WB over Alpine RD S-40-63 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 January 2024.
How much traffic does I-20 WB over Alpine RD S-40-63 carry?
About 25,150 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I-20 WB over Alpine RD S-40-63?
The structure is 185 ft (56.4 m) long with a longest span of 85 ft (25.9 m) and a deck 67 ft wide.
Who owns I-20 WB over Alpine RD S-40-63?
It is owned by the State Highway Agency.