Nfa A178 over Calfkiller River
White County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A178 over Calfkiller River in White County, Tennessee, 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 1985, making it 40 years old at the 2025 inventory.
- It carries about 110 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 10 of the 69 inventoried bridges in White County rated good (14.5%); 3 (4.3%) 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 February 2024, on a 24-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 → (36.01263, -85.35931)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 143 ft |
| Location | .1MI South of SR84 |
| NBI structure number | 930A1780001 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 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 Tennessee department of transportation.
Busiest bridges in White County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 111 over Town Creek | 1975 | 15,364 | Fair |
| Fap 111 over SR 111 / Nfa A119 | 1988 | 13,414 | Fair |
| Fap 111 over SR 111 / Nfa A119 | 1988 | 13,414 | Fair |
| Fap 111 over Post Oak Creek | 1988 | 13,414 | Fair |
| Fap 111 over Post Oak Creek | 1988 | 13,414 | Fair |
| Fap 111 over Falling Water River | 1988 | 13,414 | Fair |
All bridges nearby: White County, TN bridge conditions · every bridge in White County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.