Nfa A806 over Nine Mile Creek
Blount County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A806 over Nine Mile Creek in Blount 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 1983, making it 42 years old at the 2025 inventory.
- It carries about 170 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 137 of the 216 inventoried bridges in Blount County rated good (63.4%); 7 (3.2%) 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 January 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 → (35.61465, -84.0788)
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 | Prestressed concrete stringer or multi-beam girder |
| Length | about 42 ft |
| Location | 11.5 M. SE. Maryville. |
| NBI structure number | 050A8060001 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Blount County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 115 over Tesla Blvd | 2023 | 67,642 | Good |
| Fap 115 over I140 | 1991 | 60,455 | Good |
| I140 over Old Topside Rd / I140 | 1990 | 43,920 | Good |
| I140 over Nfa A086 / I140 | 1990 | 43,920 | Good |
| I140 over New Topside Rd (SR 333) | 1990 | 43,920 | Good |
| I140 over New Topside Rd (SR 333) | 1990 | 43,920 | Good |
All bridges nearby: Blount County, TN bridge conditions · every bridge in Blount County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.