SR 18 over I 20
FairHinds County, Mississippi · SR 18 over I 20 · Structure no. 31000180250556A
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Concrete Continuous
- Length
- 338 ft
- 4 main spans
- Daily traffic
- 13,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 over I 20 is a concrete continuous box beam or girders - single or spread carrying SR 18 over I 20 in Hinds County, Mississippi. It was built in 1969, so it is 56 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 5 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 13,500 vehicles a day, roughly 3% of them trucks, projected to reach 13,500 by 2043. The structure is 338 ft (103 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 18 over I 20 built?
It was built in 1969, making it 56 years old in 2025.
What condition is SR 18 over I 20 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 May 2024.
How much traffic does SR 18 over I 20 carry?
About 13,500 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is SR 18 over I 20?
The structure is 338 ft (103 m) long with a longest span of 102 ft (31.1 m) and a deck 52 ft wide.
Who owns SR 18 over I 20?
It is owned by the State Highway Agency.