S-4-71 over Lake Hartwell
FairAnderson County, South Carolina · 6.9MI NW Anderson · Structure no. 000000000003798
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 490 ft
- 7 main spans
- Daily traffic
- 3,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-4-71 over Lake Hartwell is a prestressed concrete stringer/multi-beam or girder carrying S-4-71 over Lake Hartwell in Anderson County, South Carolina. It was built in 1962, so it is 63 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 3,200 vehicles a day, roughly 6% of them trucks, projected to reach 3,936 by 2043. The structure is 490 ft (149.4 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-4-71 over Lake Hartwell built?
It was built in 1962, making it 63 years old in 2025.
What condition is S-4-71 over Lake Hartwell 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 January 2025.
How much traffic does S-4-71 over Lake Hartwell carry?
About 3,200 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is S-4-71 over Lake Hartwell?
The structure is 490 ft (149.4 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.
Who owns S-4-71 over Lake Hartwell?
It is owned by the State Highway Agency.