Nfa A140 over Buck Branch
Dickson County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A140 over Buck Branch in Dickson County, Tennessee, 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 1993, making it 32 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 141 of the 242 inventoried bridges in Dickson County rated good (58.3%); 12 (5.0%) 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 → (36.30707, -87.21547)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 33 ft |
| Location | Old Lock A Rd @dickson Co |
| NBI structure number | 220A1400001 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Dickson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 over I40 Rl /SR 840-rmp-nw&se | 2000 | 50,777 | Fair |
| I40 over I40 Ll /SR 840-rmp-nw&se | 2000 | 50,777 | Fair |
| I40 over Piney River & Nfa A361 | 1963 | 34,978 | Fair |
| I40 over Piney River & Nfa A361 | 1963 | 34,978 | Fair |
| I40 over I40-rl / East Piney Rd. | 1963 | 34,978 | Poor |
| I40 over I40-ll / East Piney Rd. | 1963 | 34,978 | Poor |
All bridges nearby: Dickson County, TN bridge conditions · every bridge in Dickson County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.