SW Michigan ST over Wetland Mit. Channel
Good Condition30 years old515 vehicles/day
Location
| State | Washington |
| County | King |
| Location | Under S Appr 99/530 |
| Carries | SW Michigan ST |
| Crosses | Wetland Mit. Channel |
| Coordinates | 47.54065, -122.33496 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 64.0 ft (19.5 m) |
| Max Span | 64.0 ft (19.5 m) |
| Deck Width | 38.4 ft (11.7 m) |
| Deck Area | 228.2 sq m |
| Main Spans | 1 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 515 (2002) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0014459C0000000 |