Agate Pass Bridge, Steel cantilever bridge over Agate Pass in Kitsap County, Washington, US

The Agate Pass Bridge is a structural steel truss cantilever bridge spanning Agate Pass, linking Bainbridge Island to the Kitsap Peninsula on Washington State Route 305. It is 1,229 feet (375 m) long, stands 75 feet (23 m) above the water and leaves a 300-foot (91 m) channel clearance between its piers.

The bridge opened in 1950 and replaced a ferry system that had carried passengers and vehicles between the two shores since the 1920s.

The bridge carried tolls from October 7, 1950, until October 1, 1951, when a bond issue passed by the Washington State Legislature repaid the $1,351,363 construction cost. The Washington Toll Bridge Authority ran it during that year. Drivers today cross it as part of Washington State Route 305.

The bridge remains open for regular traffic throughout most of the year, though it may close periodically for maintenance work on its structure. Drivers should check for any temporary restrictions before planning trips that depend on crossing here.

The bridge was a toll crossing for less than a year: tolls ran from October 7, 1950, until October 1, 1951, when a bond issue passed by the Washington State Legislature had repaid the $1,351,363 construction cost, paid from the motor vehicle fund.