I 20 over Tonacana Creek
Newton County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 20 over Tonacana Creek in Newton 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 1962 and reconstructed in 2010, making it 63 years old at the 2025 inventory.
- It carries about 12,000 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 121 of the 242 inventoried bridges in Newton County rated fair (50.0%); 12 (5.0%) are rated poor.
- 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 → (32.34219, -88.94269)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 154 ft |
| Location | 5.9 Mi E SR 503 |
| NBI structure number | 11000200511212B |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Newton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 20 over Stream | 1966 | 20,000 | Good |
| I 20 over Slough | 1966 | 20,000 | Good |
| I 20 over Stream | 1966 | 20,000 | Good |
| I 20 over Potterchitto Creek | 1966 | 20,000 | Fair |
| I 20 over Oakahatta Creek | 1961 | 12,000 | Fair |
| I 20 over Oakahatta Creek | 1961 | 12,000 | Fair |
All bridges nearby: Newton County, MS bridge conditions · every bridge in Newton County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.