I 55 over SR 22
Madison County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 55 over SR 22 in Madison County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 18,500 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 140 of the 311 inventoried bridges in Madison County rated fair (45.0%); 10 (3.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now fair (deck 7 to 6).
- Its most recent inspection on record is dated April 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (32.60637, -90.06941)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 225 ft |
| Location | I 55 over SR 22 |
| NBI structure number | 11000550451178A |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Madison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 55 over Purple Creek | 1979 | 104,000 | Good |
| I 55 over US 51 & Cnic RR | 1985 | 47,000 | Fair |
| I 55 over US 51 & Cnic RR | 1985 | 47,000 | Fair |
| I 55 over I 220E to I 55 North | 1979 | 47,000 | Fair |
| I 55 over I 220E to I 55 North | 1979 | 47,000 | Fair |
| I 220 over Ditch | 1977 | 47,000 | Good |
All bridges nearby: Madison County, MS bridge conditions · every bridge in Madison County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.