Md 586 over Rock Creek
Fair Condition72 years old41,271 vehicles/day
Location
| State | Maryland |
| County | Montgomery |
| Location | 1.68 Miles East Of Md 28 |
| Carries | Md 586 |
| Crosses | Rock Creek |
| Coordinates | 39.07169, -77.10924 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 104.0 ft (31.7 m) |
| Max Span | 47.9 ft (14.6 m) |
| Deck Width | 96.5 ft (29.4 m) |
| Deck Area | 932.0 sq m |
| Main Spans | 2 |
| Year Built | 1954 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 41,271 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 100000150063010 |