CR 580 South over Sugar Creek
Clinton County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 580 South over Sugar Creek in Clinton County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1924, making it 101 years old at the 2025 inventory.
- It carries about 204 vehicles a day (traffic count year 2014).
- Its listed owner is the county highway agency.
- It is one of 131 of the 210 inventoried bridges in Clinton County rated fair (62.4%); 11 (5.2%) 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 → (40.20257, -86.37411)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 76 ft |
| Location | 0.50 W of SR 421 |
| NBI structure number | 1200116 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Clinton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-65 over Manson-colfax Co Road | 2021 | 45,450 | Good |
| I-65 NB over Little Potato Creek | 1969 | 44,590 | Fair |
| I-65 SB over Little Potato Creek | 1969 | 44,590 | Fair |
| I-65 NB over Brush Creek | 1969 | 43,674 | Fair |
| I-65 SB over Brush Creek | 1969 | 43,674 | Fair |
| CR 350W over I-65 Nb/sb | 1969 | 43,674 | Fair |
All bridges nearby: Clinton County, IN bridge conditions · every bridge in Clinton County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.