Twin Arch Road over South Br Patapsco River
Fair Condition126 years old98 vehicles/day
Location
| State | Maryland |
| County | Carroll |
| Location | On Howard County Line |
| Carries | Twin Arch Road |
| Crosses | South Br Patapsco River |
| Coordinates | 39.35747, -77.13861 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Arch - Deck |
| Total Length | 25.6 ft (7.8 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 63.2 sq m |
| Year Built | 1900 (reconstructed 2007) |
Traffic
| Avg Daily Traffic | 98 (2021) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 200000CL0305010 |