Cooley Mill Road over Rock Run
Good Condition29 years old200 vehicles/day
Location
| State | Maryland |
| County | Harford |
| Location | 0.7 Mi SE Of Rock Run RD |
| Carries | Cooley Mill Road |
| Crosses | Rock Run |
| Coordinates | 39.59072, -76.15801 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 38.7 sq m |
| Main Spans | 1 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 200 (2019) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 200000H-0020010 |