SR 18 over Tallahalla Relief
GoodSmith County, Mississippi · 2.7 MI E SR 501 · Structure no. 310001806511910
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 240 ft
- 6 main spans
- Daily traffic
- 2,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over Tallahalla Relief is a prestressed concrete stringer/multi-beam or girder carrying SR 18 over Tallahalla Relief in Smith County, Mississippi. It was built in 1970, so it is 55 years old, older 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 2,600 vehicles a day, roughly 17% of them trucks, projected to reach 2,700 by 2043. The structure is 240 ft (73.2 m) long and 42 ft wide. If it were closed, the detour would be 44.1 mi (71 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 18 over Tallahalla Relief built?
It was built in 1970, making it 55 years old in 2025.
What condition is SR 18 over Tallahalla 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 SR 18 over Tallahalla Relief carry?
About 2,600 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is SR 18 over Tallahalla Relief?
The structure is 240 ft (73.2 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.
Who owns SR 18 over Tallahalla Relief?
It is owned by the State Highway Agency.