Ky-100 over Barren River
Allen County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-100 over Barren River in Allen County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1963, making it 62 years old at the 2025 inventory.
- It carries about 295 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 68 of the 88 inventoried bridges in Allen County rated fair (77.3%); 5 (5.7%) 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 → (36.69639, -86.04667)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 363 ft |
| Location | 1.4 Mi East of Jct Ky 99 |
| NBI structure number | 002B00009N |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Allen County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-100 over West Bays Creek | 2020 | 9,245 | Good |
| US-31E over West Bays Fk | 1985 | 7,900 | Fair |
| Ky-980 over W Bays Fork Creek | 1960 | 7,604 | Fair |
| US-31E over Trammel Fork Creek | 1986 | 5,792 | Fair |
| US-31E over Bays Fork Creek | 1985 | 5,640 | Fair |
| US-31E over Barren River Lake | 1963 | 5,516 | Fair |
All bridges nearby: Allen County, KY bridge conditions · every bridge in Allen County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.