I 55 over SR 550
GoodLincoln County, Mississippi · I 55 over SR 550 · Structure no. 11000550430407A
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 11,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 55 over SR 550 is a prestressed concrete stringer/multi-beam or girder carrying I 55 over SR 550 in Lincoln County, Mississippi. It was built in 1966, so it is 59 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,500 vehicles a day, roughly 29% of them trucks, projected to reach 13,500 by 2043. The structure is 183 ft (55.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 55 over SR 550 built?
It was built in 1966, making it 59 years old in 2025.
What condition is I 55 over SR 550 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 February 2025.
How much traffic does I 55 over SR 550 carry?
About 11,500 vehicles per day (2023 count), of which roughly 29% are trucks.
How long is I 55 over SR 550?
The structure is 183 ft (55.8 m) long with a longest span of 60 ft (18.3 m) and a deck 42 ft wide.
Who owns I 55 over SR 550?
It is owned by the State Highway Agency.