Diaah & Dtr over Rocky Run Tributary
Fair Condition42 years old22,000 vehicles/day
Location
| State | Virginia |
| County | Fairfax |
| Location | 11.8 Miles From Dulles Ai |
| Carries | Diaah & Dtr |
| Crosses | Rocky Run Tributary |
| Coordinates | 38.93437, -77.24146 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 28.9 ft (8.8 m) |
| Max Span | 14.4 ft (4.4 m) |
| Deck Area | 858 sq m |
| Main Spans | 2 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 22,000 (2024) |
| Lanes On Bridge | 14 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | Code 76 |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 2100057P0000000 |