A state highway to be known as state route number 305 is established as follows:

Beginning at the junction with state route number 519 at the state ferry terminal in Seattle, thence via the state ferry system northwesterly to the state ferry terminal at Bainbridge Island; also

From the state ferry terminal at Bainbridge Island, thence northerly by the most feasible route to the north end of Bainbridge Island, across Agate Pass, thence northwesterly by the most feasible route to a junction with state route number 3 in the vicinity north of Poulsbo.