I-26 over I-20
FairRichland County, South Carolina · 5 MI NW of Columbia · Structure no. 000000000004407
- Built
- 1964
- 61 years old, rebuilt 1983
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 280 ft
- 4 main spans
- Daily traffic
- 143,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-26 over I-20 is a prestressed concrete stringer/multi-beam or girder carrying I-26 over I-20 in Richland County, South Carolina. It was built in 1964 and reconstructed in 1983, so it is 61 years old, older than the South Carolina average of 48 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 143,200 vehicles a day, roughly 9% of them trucks, projected to reach 184,728 by 2043. The structure is 280 ft (85.3 m) long and 143 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 | 7 Good | Some minor problems. |
| 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-26 over I-20 built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1983.
What condition is I-26 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 December 2023.
How much traffic does I-26 over I-20 carry?
About 143,200 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-26 over I-20?
The structure is 280 ft (85.3 m) long with a longest span of 70 ft (21.3 m) and a deck 143 ft wide.
Who owns I-26 over I-20?
It is owned by the State Highway Agency.