Is 495 over Potomac River
Fair Condition63 years old239,022 vehicles/day
Location
| State | Maryland |
| County | Montgomery |
| Location | On Virginia Line |
| Carries | Is 495 |
| Crosses | Potomac River |
| Coordinates | 38.97114, -77.17948 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 1442.9 ft (439.8 m) |
| Max Span | 279.9 ft (85.3 m) |
| Deck Width | 137.5 ft (41.9 m) |
| Deck Area | 18427.6 sq m |
| Main Spans | 8 |
| Year Built | 1963 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 239,022 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 10 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 100000150100010 |