SR 18 over Stream
Copiah County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 18 over Stream in Copiah 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 2019, making it 6 years old at the 2025 inventory.
- It carries about 1,400 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 61 of the 267 inventoried bridges in Copiah County rated good (22.8%); 15 (5.6%) 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 August 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 → (32.02893, -90.65227)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 21 ft |
| Location | 5.5 Mi W SR 27 South |
| NBI structure number | 310001801502250 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Copiah County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 55 over Henry Road | 1960 | 15,500 | Fair |
| I 55 over Henry Road | 1960 | 15,500 | Fair |
| I 55 over Gallman Road | 1963 | 13,000 | Fair |
| I 55 over Gallman Road | 1963 | 13,000 | Fair |
| I 55 over Clear Creek Road | 1963 | 13,000 | Poor |
| I 55 over Clear Creek Road | 1963 | 13,000 | Poor |
All bridges nearby: Copiah County, MS bridge conditions · every bridge in Copiah County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.