Structure 7949B009 00028 · Clatsop County, OR
Carries Us101 (hwy 9) over Columbia River, Desdemona Sands.
11,200 ft end to end, longest span 80 ft: about 31 football fields, or 2.1 miles. 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 multi-beam bridge.
| State | Oregon |
| County | Clatsop |
| Location | Desdemona Sands |
| Carries | Us101 (hwy 9) |
| Crosses | Columbia River |
| Coordinates | 46.23611, -123.87249 |
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 11200.1 ft (3413.8 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 34479.4 sq m |
| Main Spans | 140 |
| Year Built | 1966 |
| Avg Daily Traffic | 9,117 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 07949B009 00028 |
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.