The department is authorized and directed to construct a bridge across Port Washington Narrows connecting state route number 304 at or near Bremerton with state route number 303 on the Manette Peninsula; to make surveys and plans; and to condemn or otherwise acquire such lands as are necessary or proper for approaches to the bridge or for the relocation of any portion of the highway to locate the bridge at the most feasible place. The bridge shall become and be maintained as a part of the state highway system.