SR 490 over Nanih Waiya Creek Relief
Winston County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 490 over Nanih Waiya Creek Relief in Winston County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1992, making it 33 years old at the 2025 inventory.
- It carries about 670 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 135 of the 176 inventoried bridges in Winston County rated good (76.7%); 3 (1.7%) 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 April 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (32.99093, -88.89496)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 91 ft |
| Location | 1.7 Mi N SR 397 |
| NBI structure number | 310049008001080 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| 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 Winston County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 14 over Ditch | 1974 | 8,300 | Good |
| SR 14 over Town Creek Canal | 1998 | 7,200 | Fair |
| SR 25 over Pinishook Creek | 1983 | 5,800 | Fair |
| SR 25 over Reedy Creek | 1981 | 5,600 | Fair |
| SR 15 over Ditch | 1972 | 5,200 | Good |
| SR 15 over Stream | 1964 | 4,800 | Good |
All bridges nearby: Winston County, MS bridge conditions · every bridge in Winston County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.