Silver Ck RD 00670 over Nine Mile Creek
Poor Condition68 years old47 vehicles/day
Location
| State | Washington |
| County | Ferry |
| Location | 19.05 E SR 21 |
| Carries | Silver Ck RD 00670 |
| Crosses | Nine Mile Creek |
| Coordinates | 48.07033, -118.45574 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 2 (Critical) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 50.9 ft (15.5 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 125.5 sq m |
| Main Spans | 2 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 47 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 084149000000000 |