SR 203 over Slough
Good Condition40 years old7,813 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 1.8 N Jct SR 202 |
| Carries | SR 203 |
| Crosses | Slough |
| Coordinates | 47.59081, -121.90583 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 210.0 ft (64 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 704 sq m |
| Main Spans | 5 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 7,813 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0012947A0000000 |