Ilchester Road over Bonnie Branch
Poor Condition81 years old2,588 vehicles/day
Location
| State | Maryland |
| County | Howard |
| Location | At Bonnie Branch RD |
| Carries | Ilchester Road |
| Crosses | Bonnie Branch |
| Coordinates | 39.24924, -76.76563 |
Condition Ratings
| Overall Condition | Poor |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 3 (Serious) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 87.5 sq m |
| Main Spans | 4 |
| Year Built | 1945 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 2,588 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 200000HO0003010 |