I-81 Nbl over Duncan Run
Fair Condition61 years old26,774 vehicles/day
Location
| State | Virginia |
| County | Frederick |
| Location | 2.23 To 672 - 0.31 To 669 |
| Carries | I-81 Nbl |
| Crosses | Duncan Run |
| Coordinates | 39.28669, -78.08648 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 38.1 ft (11.6 m) |
| Max Span | 8.9 ft (2.7 m) |
| Deck Area | 131.1 sq m |
| Main Spans | 4 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 26,774 (2022) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 325 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008143 |