SR 45 over Plum Creek
Brown County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 45 over Plum Creek in Brown County, Indiana, 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 1970, making it 55 years old at the 2025 inventory.
- It carries about 2,034 vehicles a day (traffic count year 2004).
- Its listed owner is the state highway agency.
- It is one of 26 of the 114 inventoried bridges in Brown County rated good (22.8%); 17 (14.9%) 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 → (39.25841, -86.34094)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 41 ft |
| Location | 05.79 S SR 135 |
| NBI structure number | 016860 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Brown County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 46 over Greasy Creek | 1964 | 14,040 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 11,699 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 10,596 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 10,520 | Fair |
| SR 46 over N Fork Salt Creek | 1928 | 9,341 | Fair |
| SR 46 over Gnaw Bone Creek | 1960 | 8,485 | Good |
All bridges nearby: Brown County, IN bridge conditions · every bridge in Brown County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.