SR 30 over Relief Ditch
Union County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 30 over Relief Ditch in Union County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1978, making it 47 years old at the 2025 inventory.
- It carries about 2,900 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 94 of the 203 inventoried bridges in Union County rated good (46.3%); 3 (1.5%) are rated poor.
- 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 → (34.47145, -89.2391)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 33 ft |
| Location | 0.6 Mi E Lafayette Cl |
| NBI structure number | 310003007301800 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Union County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 22 over Sand Creek | 1979 | 29,000 | Good |
| I 22 over Okannattie Creek W B | 1979 | 29,000 | Good |
| I 22 over Okannattie Creek Relief | 1979 | 29,000 | Good |
| I 22 over Okannattie Creek Relief | 1979 | 29,000 | Good |
| I 22 over Tallahatchie River | 1965 | 28,000 | Fair |
| I 22 over Creek | 1976 | 28,000 | Fair |
All bridges nearby: Union County, MS bridge conditions · every bridge in Union County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.