Nfa A330 over Porter Road / I-840
Good Condition22 years old70 vehicles/day
Location
| State | Tennessee |
| County | Dickson |
| Location | Porter RD @ I840 |
| Carries | Nfa A330 |
| Crosses | Porter Road / I-840 |
| Coordinates | 36.00146, -87.25220 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 317.9 ft (96.9 m) |
| Max Span | 156.2 ft (47.6 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 949.6 sq m |
| Main Spans | 2 |
| Year Built | 2004 |
Traffic
| Avg Daily Traffic | 70 (2020) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 22SR8400003 |