Structure 100000130034010 · Howard County, MD
Carries US 40 over Patapsco Forest Road, 0.5 Mi W Of Baltimore Co.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work24 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.
| State | Maryland |
| County | Howard |
| Location | 0.5 Mi W Of Baltimore Co |
| Carries | US 40 |
| Crosses | Patapsco Forest Road |
| Coordinates | 39.29603, -76.78716 |
| Material | Concrete |
| Design | Slab |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 87.9 ft (26.8 m) |
| Deck Area | 195.6 sq m |
| Main Spans | 1 |
| Year Built | 1936 |
| Avg Daily Traffic | 37,530 (2009) |
| Truck Traffic | 8% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
| Last Inspection | May 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | Not applicable |
| Structure Number | 100000130034010 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.