Structure 100000100115020 · Frederick County, MD
Carries US 340 over Little Catoctin Creek, 0.36 Mile East Of Md 17.
A culvert 24 ft across. 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, so those are drawn as typical for a culvert.
| State | Maryland |
| County | Frederick |
| Location | 0.36 Mile East Of Md 17 |
| Carries | US 340 |
| Crosses | Little Catoctin Creek |
| Coordinates | 39.34286, -77.63498 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.3 ft (7.4 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 322.6 sq m |
| Year Built | 1964 |
| Avg Daily Traffic | 24,600 (2013) |
| Truck Traffic | 8% |
| Lanes On Bridge | 4 |
| Last Inspection | June 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 100000100115020 |
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.