S-31-39 over I-20
FairLee County, South Carolina · 6 MI E Bishopville · Structure no. 000000000006335
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 310 ft
- 2 main spans
- Daily traffic
- 500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-31-39 over I-20 is a steel continuous stringer/multi-beam or girder carrying S-31-39 over I-20 in Lee County, South Carolina. It was built in 1973, so it is 52 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 5 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 500 vehicles a day, roughly 8% of them trucks, projected to reach 730 by 2043. The structure is 310 ft (94.5 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 S-31-39 over I-20 built?
It was built in 1973, making it 52 years old in 2025.
What condition is S-31-39 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 August 2023.
How much traffic does S-31-39 over I-20 carry?
About 500 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is S-31-39 over I-20?
The structure is 310 ft (94.5 m) long with a longest span of 109 ft (33.2 m) and a deck 38 ft wide.
Who owns S-31-39 over I-20?
It is owned by the State Highway Agency.