Old Columbia Road over Middle Patuxent River
Fair Condition106 years old4,880 vehicles/day
Location
| State | Maryland |
| County | Howard |
| Location | 0.01 Mi E Of US RTE 29 |
| Carries | Old Columbia Road |
| Crosses | Middle Patuxent River |
| Coordinates | 39.16826, -76.88322 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 17.4 ft (5.3 m) |
| Deck Area | 72.6 sq m |
| Main Spans | 1 |
| Year Built | 1920 |
Traffic
| Avg Daily Traffic | 4,880 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 200000HO0064010 |