Nfa D670 over Union School Road / I40
Fair Condition51 years old300 vehicles/day
Location
| State | Tennessee |
| County | Knox |
| Location | 1.4 M NW Of Sr9 |
| Carries | Nfa D670 |
| Crosses | Union School Road / I40 |
| Coordinates | 36.00415, -83.78815 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 250.0 ft (76.2 m) |
| Max Span | 125.0 ft (38.1 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 746.8 sq m |
| Main Spans | 2 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 300 (2020) |
| Truck Traffic | 2% |
| 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 | 47I00400103 |