SR 18 over Relief
FairRankin County, Mississippi · 1.8 MI E SR 13 · Structure no. 310001806109400
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 140 ft
- 7 main spans
- Daily traffic
- 2,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over Relief is a concrete slab carrying SR 18 over Relief in Rankin County, Mississippi. It was built in 1974, so it is 51 years old, older than the Mississippi average of 38.9 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 2,600 vehicles a day, roughly 14% of them trucks, projected to reach 3,100 by 2043. The structure is 140 ft (42.7 m) long and 42 ft wide. If it were closed, the detour would be 32.9 mi (53 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 SR 18 over Relief built?
It was built in 1974, making it 51 years old in 2025.
What condition is SR 18 over Relief 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 October 2024.
How much traffic does SR 18 over Relief carry?
About 2,600 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is SR 18 over Relief?
The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.
Who owns SR 18 over Relief?
It is owned by the State Highway Agency.