US 378 Bus over Lynches Lake
FairFlorence County, South Carolina · In Lake City · Structure no. 000000000004785
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected March 2024
- Type
- Slab
- Concrete
- Length
- 300 ft
- 12 main spans
- Daily traffic
- 5,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 378 Bus over Lynches Lake is a concrete slab carrying US 378 Bus over Lynches Lake in Florence County, South Carolina. It was built in 1966, so it is 59 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 5,500 vehicles a day, roughly 4% of them trucks, projected to reach 7,755 by 2043. The structure is 300 ft (91.4 m) long and 64 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 378 Bus over Lynches Lake built?
It was built in 1966, making it 59 years old in 2025.
What condition is US 378 Bus over Lynches Lake 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 March 2024.
How much traffic does US 378 Bus over Lynches Lake carry?
About 5,500 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 378 Bus over Lynches Lake?
The structure is 300 ft (91.4 m) long with a longest span of 25 ft (7.6 m) and a deck 64 ft wide.
Who owns US 378 Bus over Lynches Lake?
It is owned by the State Highway Agency.