S-21-106 over Drainage Canal
PoorFlorence County, South Carolina · 4MI SE Timmonsville · Structure no. 000000000002949
- Built
- 1959
- 66 years old, rebuilt 1989
- Condition
- Poor
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 75 ft
- 5 main spans
- Daily traffic
- 250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-21-106 over Drainage Canal is a concrete slab carrying S-21-106 over Drainage Canal in Florence County, South Carolina. It was built in 1959 and reconstructed in 1989, so it is 66 years old, older than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 75 ft (22.9 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-21-106 over Drainage Canal built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1989.
What condition is S-21-106 over Drainage Canal in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.
How much traffic does S-21-106 over Drainage Canal carry?
About 250 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S-21-106 over Drainage Canal?
The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.
Who owns S-21-106 over Drainage Canal?
It is owned by the State Highway Agency.