Ky-152 over Herrington Lake
Mercer County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-152 over Herrington Lake in Mercer County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2019, making it 6 years old at the 2025 inventory.
- It carries about 2,211 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 25 of the 76 inventoried bridges in Mercer County rated good (32.9%); 6 (7.9%) 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 August 2024, 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 → (37.74611, -84.70389)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 827 ft |
| Location | West of Mercer County LN |
| NBI structure number | 084B00055N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 48 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 Kentucky department of transportation.
Busiest bridges in Mercer County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Danville Road over Dry Creek | 1952 | 10,414 | Fair |
| Harrodsburg Bypass over Pioneer Creek | 1996 | 9,565 | Fair |
| Martha Layne Colli over Salt River | 1965 | 7,450 | Fair |
| Bg-9002 over Salt River | 1965 | 7,450 | Fair |
| 127 Bypass South R over Southern RR | 1996 | 4,783 | Good |
| Harrodsburg Bypass over Southern Railroad | 1996 | 4,783 | Good |
All bridges nearby: Mercer County, KY bridge conditions · every bridge in Mercer County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.