I-77 NB over Mercer County Route 20
Good Condition49 years old13,398 vehicles/day
Location
| State | West Virginia |
| County | Mercer |
| Location | 1.96 Mi. N. Of I 460 |
| Carries | I-77 NB |
| Crosses | Mercer County Route 20 |
| Coordinates | 37.38675, -81.05430 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 169.9 ft (51.8 m) |
| Max Span | 70.2 ft (21.4 m) |
| Deck Width | 44.6 ft (13.6 m) |
| Deck Area | 704.5 sq m |
| Main Spans | 1 |
| Year Built | 1977 (reconstructed 2020) |
Traffic
| Avg Daily Traffic | 13,398 (2021) |
| Truck Traffic | 23% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000028A200 |