S-40-73 over Smith Branch
FairRichland County, South Carolina · 2 MI NW of Columbia · Structure no. 000000000004656
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 7,800
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-40-73 over Smith Branch is a concrete culvert carrying S-40-73 over Smith Branch in Richland County, South Carolina. It was built in 1965, so it is 60 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 7,800 vehicles a day, roughly 2% of them trucks, projected to reach 12,558 by 2043. The structure is 21 ft (6.4 m) long and 48 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-40-73 over Smith Branch built?
It was built in 1965, making it 60 years old in 2025.
What condition is S-40-73 over Smith Branch 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 December 2024.
How much traffic does S-40-73 over Smith Branch carry?
About 7,800 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is S-40-73 over Smith Branch?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.
Who owns S-40-73 over Smith Branch?
It is owned by the State Highway Agency.