Ky-36 over Steam Mill Branch
Grant County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-36 over Steam Mill Branch in Grant County, Kentucky, 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 1933, making it 92 years old at the 2025 inventory.
- It carries about 415 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 45 of the 79 inventoried bridges in Grant County rated good (57.0%); 6 (7.6%) 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 → (38.62889, -84.60167)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 1.6 Mi West of I-75 Ntrch |
| NBI structure number | 041B00009N |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Grant County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 over Three Fork Creek | 1963 | 44,363 | Fair |
| I-75 Southbound over Ragtown Road | 2007 | 22,182 | Good |
| I-75 Northbound over Ragtown Road | 2007 | 22,182 | Good |
| Ky-22 over I-75 @ 158.54 | 1998 | 16,492 | Good |
| Ky-491 over Ky 491 over I-75 | 2001 | 10,163 | Good |
| US-25 over NS (cno&tp) System | 1983 | 9,818 | Good |
All bridges nearby: Grant County, KY bridge conditions · every bridge in Grant County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.