Nfa 1260 (sa 4731) over Thorngrove Road / I40
Fair Condition53 years old835 vehicles/day
Location
| State | Tennessee |
| County | Knox |
| Location | .5 M NE Of Thorn Grove |
| Carries | Nfa 1260 (sa 4731) |
| Crosses | Thorngrove Road / I40 |
| Coordinates | 35.99635, -83.71050 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 372.0 ft (113.4 m) |
| Max Span | 131.9 ft (40.2 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 1247.4 sq m |
| Main Spans | 4 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 835 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 47I00400113 |