S-18-86/MT Zion RD over Trib Indian Field Swp
FairDorchester County, South Carolina · 3.5 MI NW ST George · Structure no. 000000000001821
- Built
- 1951
- 74 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 28 ft
- 2 main spans
- Daily traffic
- 375
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-18-86/MT Zion RD over Trib Indian Field Swp is a concrete slab carrying S-18-86/MT Zion RD over Trib Indian Field Swp in Dorchester County, South Carolina. It was built in 1951, so it is 74 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 375 vehicles a day, roughly 8% of them trucks, projected to reach 521 by 2043. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-18-86/MT Zion RD over Trib Indian Field Swp built?
It was built in 1951, making it 74 years old in 2025.
What condition is S-18-86/MT Zion RD over Trib Indian Field Swp 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 April 2023.
How much traffic does S-18-86/MT Zion RD over Trib Indian Field Swp carry?
About 375 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is S-18-86/MT Zion RD over Trib Indian Field Swp?
The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m) and a deck 26 ft wide.
Who owns S-18-86/MT Zion RD over Trib Indian Field Swp?
It is owned by the State Highway Agency.