Is 495 over Stoney Brook DR Rock CR
Fair Condition62 years old242,821 vehicles/day
Location
| State | Maryland |
| County | Montgomery |
| Location | 0.97 Mile East Of Md 185 |
| Carries | Is 495 |
| Crosses | Stoney Brook DR Rock CR |
| Coordinates | 39.01114, -77.06386 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 362.9 ft (110.6 m) |
| Max Span | 144.0 ft (43.9 m) |
| Deck Width | 152.6 ft (46.5 m) |
| Deck Area | 5142.9 sq m |
| Main Spans | 3 |
| Year Built | 1964 (reconstructed 1990) |
Traffic
| Avg Daily Traffic | 242,821 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 8 |
| Lanes Under Bridge | 2 |
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 | 100000150126010 |