Catch Basin (0)
| Type 1 |
| Type 2 |
| Other |
| Private; Inlet, WSDOT; Other, WSDOT |
| Unk Owner |
Discharge Point (1)
Trash Rack (2)
Headwall (3)
Storm Main (4)
| Other |
| Pipe |
| Culvert |
| Ditch |
| Watercourse |
| Private |
Storm Lateral (5)
| Private |
| Mercer Island |
Control Structure (6)
| Other |
| Detention/Retention |
| Pond |
Storm Inspection Facility (7)
Drainage Basins (8)
Placeholder Lateral (10)
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