S-18-29 over Edisto River Relief
GoodDorchester County, South Carolina · Edisto River Relief #4 · Structure no. 000000000002337
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 750
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-18-29 over Edisto River Relief is a prestressed concrete box beam or girders - multiple carrying S-18-29 over Edisto River Relief in Dorchester County, South Carolina. It was built in 2003, so it is 22 years old, younger than the South Carolina average of 48 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 750 vehicles a day, roughly 16% of them trucks, projected to reach 1,095 by 2043. The structure is 60 ft (18.3 m) long and 36 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 S-18-29 over Edisto River Relief built?
It was built in 2003, making it 22 years old in 2025.
What condition is S-18-29 over Edisto River Relief in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does S-18-29 over Edisto River Relief carry?
About 750 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is S-18-29 over Edisto River Relief?
The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.
Who owns S-18-29 over Edisto River Relief?
It is owned by the State Highway Agency.