Smith Co. 504 over Leaf River Relief
GoodSmith County, Mississippi · Sec 36 T 4N R 8E B · Structure no. SA6500000000110
- Built
- 2000
- 25 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 142 ft
- 4 main spans
- Daily traffic
- 330
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Smith Co. 504 over Leaf River Relief is a prestressed concrete stringer/multi-beam or girder carrying Smith Co. 504 over Leaf River Relief in Smith County, Mississippi. It was built in 2000, so it is 25 years old, younger than the Mississippi average of 38.9 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 330 vehicles a day, roughly 8% of them trucks, projected to reach 495 by 2043. The structure is 142 ft (43.3 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).
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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Smith Co. 504 over Leaf River Relief built?
It was built in 2000, making it 25 years old in 2025.
What condition is Smith Co. 504 over Leaf 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 September 2023.
How much traffic does Smith Co. 504 over Leaf River Relief carry?
About 330 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is Smith Co. 504 over Leaf River Relief?
The structure is 142 ft (43.3 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.
Who owns Smith Co. 504 over Leaf River Relief?
It is owned by the County Highway Agency.