Knight Street Bridge, Road bridge between Richmond and Vancouver, Canada

Knight Street Bridge crosses the north arm of the Fraser River, the Canadian National Railway line and several roads between Vancouver and Richmond. Its south section is 1,198 metres long with four lanes, and its north section is 238 metres with six lanes. The six-lane deck narrows to four over Mitchell Island, where the outer lanes become off and on ramps.

Construction of this bridge began in 1969 and it opened on January 15, 1974. The design as a prestressed concrete cantilever structure represented a major engineering achievement for its time.

The bridge and Knight Street are both named after Robert Knight, a South Vancouver property owner in the late 19th and early 20th centuries. The crossing was planned as the Fraser Street Bridge Replacement, and the old Fraser Street bridge it superseded was demolished in February 1974.

The bridge averages over 100,000 vehicle crossings daily, the second busiest in the Lower Mainland. Cyclists must legally ride on the sidewalks. The Marine Drive on and off ramps have ranked among Canada's most dangerous intersections, so take care there.

The deck is electrically heated, which reduces the need for de-icing salt in winter. Under the western spans runs a maintenance walkway carrying a water pipe, a gas pipe and electrical lines; this water main was once Mitchell Island's only supply, cut for 25 days after the January 2000 crane-barge strike.