I-90 Westbound over Kachess River
Good Condition4 years old17,108 vehicles/day
Location
| State | Washington |
| County | Kittitas |
| Location | 14.8 Mi E SR 906 |
| Carries | I-90 Westbound |
| Crosses | Kachess River |
| Coordinates | 47.25694, -121.20311 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 126.0 ft (38.4 m) |
| Max Span | 123.0 ft (37.5 m) |
| Deck Width | 52.2 ft (15.9 m) |
| Deck Area | 610.6 sq m |
| Main Spans | 1 |
| Year Built | 2022 |
Traffic
| Avg Daily Traffic | 17,108 (2023) |
| Truck Traffic | 21% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0019558A0000000 |