SR 356 over Tuscumbia River
Alcorn County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 356 over Tuscumbia River in Alcorn County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 1,100 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 77 of the 213 inventoried bridges in Alcorn County rated fair (36.2%); 3 (1.4%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 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 → (34.77012, -88.51969)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 102 ft |
| Location | 2.5 Mi E US 45 |
| NBI structure number | 310035600200570 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Alcorn County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 72 over Kcs RR | 1976 | 25,000 | Fair |
| US 72 over US 45 | 1972 | 19,000 | Good |
| US 45 over Relief | 1937 | 17,000 | Fair |
| US 72 over Bridge Creek | 1960 | 17,000 | Fair |
| US 72 over Clear Creek | 1988 | 17,000 | Good |
| US 72 over Ditch | 1940 | 17,000 | Good |
All bridges nearby: Alcorn County, MS bridge conditions · every bridge in Alcorn County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.