State Route 104 is a highway located in the state of Washington. It runs primarily in a west-east direction, connecting the city of Seattle to the Olympic Peninsula. The route serves as a vital transportation link for both local residents and travelers, facilitating access to various communities and natural attractions. The highway spans approximately 30 miles and includes scenic views of Puget Sound and surrounding landscapes. It intersects with several other major roads, enhancing connectivity within the region. State Route 104 is also known for its proximity to the Hood Canal Bridge, which provides access to the Olympic Peninsula.