Carroll Mill Road over Middle Patuxent River
Fair Condition51 years old2,736 vehicles/day
Location
| State | Maryland |
| County | Howard |
| Location | 0.4 Mi W Of Folly Quarter |
| Carries | Carroll Mill Road |
| Crosses | Middle Patuxent River |
| Coordinates | 39.26633, -76.92874 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 41.0 ft (12.5 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 38.1 ft (11.6 m) |
| Deck Area | 145 sq m |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 2,736 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 200000HO0022020 |