US 340 over Potomac River & Csx Rwy
Fair Condition80 years old25,063 vehicles/day
Location
| State | Virginia |
| County | Loudoun |
| Location | 00.34fr671va/00.30to180md |
| Carries | US 340 |
| Crosses | Potomac River & Csx Rwy |
| Coordinates | 39.32111, -77.71004 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Deck |
| Total Length | 2251.0 ft (686.1 m) |
| Max Span | 190.0 ft (57.9 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 7684.3 sq m |
| Main Spans | 12 |
| Year Built | 1946 (reconstructed 1978) |
Traffic
| Avg Daily Traffic | 25,063 (2022) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 18 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 000000000011145 |