Ky 1171; Salem Rd over I-65
Simpson County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky 1171; Salem Rd over I-65 in Simpson County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 303 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 20 of the 51 inventoried bridges in Simpson County rated good (39.2%); 3 (5.9%) 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 July 2021, on a 48-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 → (36.795, -86.47472)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 254 ft |
| Location | 12.1 Mi N of State Line |
| NBI structure number | 107B00049N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2021 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Simpson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-65 over Ky 100 | 2008 | 56,578 | Fair |
| I-65 over West Fork Drakes Creek | 2007 | 56,578 | Fair |
| I-65 over U.S. 31W | 2007 | 52,337 | Fair |
| I-65 over CSX Railroad | 2007 | 52,337 | Fair |
| I-65 over West Fork Drakes Creek | 2007 | 52,337 | Fair |
| US 31W over Sharps Branch | 2017 | 12,198 | Good |
All bridges nearby: Simpson County, KY bridge conditions · every bridge in Simpson County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.