I-20 over RR Cn&l
FairLexington County, South Carolina · 5MI NW of Columbia · Structure no. 000000000004366
- Built
- 1964
- 61 years old, rebuilt 1991
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 174 ft
- 3 main spans
- Daily traffic
- 88,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-20 over RR Cn&l is a prestressed concrete stringer/multi-beam or girder carrying I-20 over RR Cn&l in Lexington County, South Carolina. It was built in 1964 and reconstructed in 1991, 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 88,300 vehicles a day, roughly 11% of them trucks, projected to reach 109,492 by 2043. The structure is 174 ft (53 m) long and 110 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-20 over RR Cn&l built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1991.
What condition is I-20 over RR Cn&l 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 November 2023.
How much traffic does I-20 over RR Cn&l carry?
About 88,300 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is I-20 over RR Cn&l?
The structure is 174 ft (53 m) long with a longest span of 58 ft (17.7 m) and a deck 110 ft wide.
Who owns I-20 over RR Cn&l?
It is owned by the State Highway Agency.