The Agate Pass Bridge is a structural steel truss cantilever bridge spanning Agate Pass, connecting Bainbridge Island to the Kitsap Peninsula.

It was built in 1950, and it replaced a car ferry service which dated from the 1920s.

[1] The bridge provides a direct route along Washington State Route 305 between Seattle, via the Seattle-Bainbridge Island ferry, and the Kitsap Peninsula.

[2] The original construction cost of $1,351,363 was paid out of the motor vehicle fund, and operated as a toll bridge from October 7, 1950, until October 1, 1951, when costs were repaid by a bond issue passed by the Washington State Legislature.

[3] The Agate Pass Bridge is listed on the National Register of Historic Places.