I55 Rl over I-55 N.B. / Mallory Ave
FairShelby County, Tennessee · I-55 Exit 9 · Structure no. 79I00550071
- Built
- 2012
- 13 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 450 ft
- 3 main spans
- Daily traffic
- 72,252
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I55 Rl over I-55 N.B. / Mallory Ave is a steel continuous stringer/multi-beam or girder carrying I55 Rl over I-55 N.B. / Mallory Ave in Shelby County, Tennessee. It was built in 2012, so it is 13 years old, younger than the Tennessee average of 47.4 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 72,252 vehicles a day, roughly 8% of them trucks, projected to reach 96,256 by 2040. The structure is 450 ft (137.2 m) long and 60 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I55 Rl over I-55 N.B. / Mallory Ave built?
It was built in 2012, making it 13 years old in 2025.
What condition is I55 Rl over I-55 N.B. / Mallory Ave 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 December 2024.
How much traffic does I55 Rl over I-55 N.B. / Mallory Ave carry?
About 72,252 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is I55 Rl over I-55 N.B. / Mallory Ave?
The structure is 450 ft (137.2 m) long with a longest span of 210 ft (64 m) and a deck 60 ft wide.
Who owns I55 Rl over I-55 N.B. / Mallory Ave?
It is owned by the State Highway Agency.