County Road 1090 over Butter Milk Creek
Good Condition66 years old70 vehicles/day
Location
| State | Washington |
| County | Okanogan |
| Location | 11.1 W.sr20 @ Twisp |
| Carries | County Road 1090 |
| Crosses | Butter Milk Creek |
| Coordinates | 48.36165, -120.33751 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 65.9 ft (20.1 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 98.5 sq m |
| Main Spans | 3 |
| Year Built | 1960 (reconstructed 2007) |
Traffic
| Avg Daily Traffic | 70 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 081847000000000 |