Us421 Sbl Ramp over I40 I40 Bus Us421
Good Condition36 years old10,000 vehicles/day
Location
| State | North Carolina |
| County | Forsyth |
| Location | 1.2 Mi. N. Jct. Us158 |
| Carries | Us421 Sbl Ramp |
| Crosses | I40 I40 Bus Us421 |
| Coordinates | 36.06997, -80.32850 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 591.9 ft (180.4 m) |
| Max Span | 133.9 ft (40.8 m) |
| Deck Width | 50.5 ft (15.4 m) |
| Deck Area | 2778.2 sq m |
| Main Spans | 6 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 10,000 (2022) |
| Truck Traffic | 12% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 9 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000670444 |