Harford Road over Herring Run
Good Condition115 years old20,994 vehicles/day
Location
| State | Maryland |
| County | Baltimore |
| Location | 0.25 Mi S Argonne Drive |
| Carries | Harford Road |
| Crosses | Herring Run |
| Coordinates | 39.33425, -76.57629 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 9 (Excellent) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 285.1 ft (86.9 m) |
| Max Span | 134.8 ft (41.1 m) |
| Deck Width | 67.3 ft (20.5 m) |
| Deck Area | 1781.5 sq m |
| Main Spans | 3 |
| Year Built | 1911 (reconstructed 1927) |
Traffic
| Avg Daily Traffic | 20,994 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 1 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 200000BC3212010 |