Twin Arch Road over South Br Patapsco River
Fair Condition39 years old4,137 vehicles/day
Location
| State | Maryland |
| County | Carroll |
| Location | On Howard Co Line |
| Carries | Twin Arch Road |
| Crosses | South Br Patapsco River |
| Coordinates | 39.35928, -77.13573 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 53.1 ft (16.2 m) |
| Max Span | 16.1 ft (4.9 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 197.6 sq m |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 4,137 (2021) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
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 | 200000CL0306020 |