Structure 27647 · Fairfax County, VA
Carries Clifton Road over Swift Run, 00.80fr646/00.35to5529.
Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.
How ratings work23 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 deck arch.
| State | Virginia |
| County | Fairfax |
| Location | 00.80fr646/00.35to5529 |
| Carries | Clifton Road |
| Crosses | Swift Run |
| Coordinates | 38.76084, -77.35516 |
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 23.0 ft (7 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 53.2 sq m |
| Main Spans | 1 |
| Year Built | 2003 |
| Avg Daily Traffic | 5,662 (2022) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | August 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 | 000000000027647 |
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.