Washington 104
| Termini | Junction US-101 south of Discovery Bay to Junction WA-522 in Lake Forest Park, via the Hood Canal floating bridge and the Edmonds-Kingston ferry. |
| Length | 31.8 miles + ferry |
| "Where does it go?" | Connects the northern parts of the Olympic and Kitsap peninsulas, via the Hood Canal bridge, to the northern part of Seattle, via the ferry route between Kingston and Edmonds. |

Highways of
Washington State - State Route 104
Washington State Highways -
SR-104
Wikipedia -
Washington State Route 104
Washington
State Legislation - Route 104