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.

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Agate Pass Bridge
Coordinates	47°42′45″N 122°33′58″W
Carries	SR 305
Crosses	Agate Pass
Locale	Suquamish, Washington
Owner	WSDOT
Heritage status	NRHP
Characteristics
Design	Steel cantilever truss
Material	Steel
Total length	1,229 feet (375 m)
Longest span	300 feet (91 m)
Clearance below	75 feet (23 m)
History
Construction end	1950
Construction cost	$1,351,363
Statistics
Toll	until October 1, 1951
Agate Pass Bridge
U.S. National Register of Historic Places
Location	WA 305 over Agate Passage
Nearest city	Suquamish, Washington
Built	1950
Architect	State Dept of Hwys
MPS	Bridges of Washington State MPS
NRHP reference No.	95000625
Added to NRHP	May 24, 1995
Location

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The Agate Pass Bridge is 1,229 feet (375 m) long and is 75 feet (23 m) above the water and has a channel clearance of 300 feet (91 m) between piers.^[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. The Washington Toll Bridge Authority managed the bridge during the year it took to repay the bond.^[3]

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