Sixes Bridge Road over Monocacy River
Fair Condition116 years old207 vehicles/day
Location
| State | Maryland |
| County | Frederick |
| Location | 2.5 Mi S Of Keysville RD |
| Carries | Sixes Bridge Road |
| Crosses | Monocacy River |
| Coordinates | 39.63021, -77.28839 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 240.2 ft (73.2 m) |
| Max Span | 119.1 ft (36.3 m) |
| Deck Width | 15.7 ft (4.8 m) |
| Deck Area | 351.4 sq m |
| Main Spans | 2 |
| Year Built | 1910 (reconstructed 1995) |
Traffic
| Avg Daily Traffic | 207 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 200000F-0503010 |