Prospect Road over I 55
Montgomery County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Prospect Road over I 55 in Montgomery County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1963, making it 62 years old at the 2025 inventory.
- It carries about 60 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 44 of the 170 inventoried bridges in Montgomery County rated fair (25.9%); 2 (1.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2023, 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 → (33.60414, -89.78298)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete single box beam |
| Length | about 266 ft |
| Location | 0.8 Mi S Carroll Cl |
| NBI structure number | 410005504919240 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2023 |
| 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 Montgomery County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 55 over Gum Branch Road | 1965 | 7,500 | Fair |
| I 55 over Gum Branch Road | 1965 | 7,500 | Fair |
| I 55 over Caney Creek | 1965 | 7,500 | Good |
| I 55 over Caney Creek | 1965 | 7,500 | Good |
| I 55 over Bluff Springs Road | 1965 | 7,500 | Fair |
| I 55 over Bluff Springs Road | 1965 | 7,500 | Fair |
All bridges nearby: Montgomery County, MS bridge conditions · every bridge in Montgomery County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.