Tinkham Road over S.fk. Snoqualmie River
Fair Condition54 years old120 vehicles/day
Location
| State | Washington |
| County | King |
| Location | I90 East Exit 47 |
| Carries | Tinkham Road |
| Crosses | S.fk. Snoqualmie River |
| Coordinates | 47.39431, -121.48127 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 490.2 ft (149.4 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 1284.8 sq m |
| Main Spans | 5 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 120 (2017) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | U.S. Forest Service |
| Historical Significance | Historical significance is not determined |
| Structure Number | 060505000032684 |