Structure 11ELC0051 · Grant County, WA
Carries Headworks Maintena over Crab Creek Siphon No. 1, Crab Ck Siphon No. 1 Inle.
A culvert 22 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 | Washington |
| County | Grant |
| Location | Crab Ck Siphon No. 1 Inle |
| Carries | Headworks Maintena |
| Crosses | Crab Creek Siphon No. 1 |
| Coordinates | 47.42206, -119.36889 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.3 ft (6.8 m) |
| Max Span | 22.3 ft (6.8 m) |
| Deck Width | 27.2 ft (8.3 m) |
| Deck Area | 56.4 sq m |
| Main Spans | 1 |
| Year Built | 1947 |
| Avg Daily Traffic | 10 (2021) |
| Lanes On Bridge | 2 |
| Last Inspection | November 2021 |
| Inspection Frequency | Every 48 months |
| Owner | Bureau of Reclamation |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 11ELC0051 |
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.