Senator Sid Buckwold Bridge, Road bridge in Saskatoon, Canada

The Senator Sid Buckwold Bridge is a road bridge carrying the Idylwyld Freeway across the South Saskatchewan River between the west and east shores of Saskatoon. It was built in 1966 on the site of the former Qu'Appelle, Long Lake and Saskatchewan (later CN Rail) bridge, whose piers were dynamited for the new crossing. The 2019–2020 rehabilitation repaired and resurfaced the deck and widened the pedestrian walkways.

Built in 1966 on the site of the former Qu'Appelle, Long Lake and Saskatchewan (later CN Rail) bridge, the structure formed part of the Idylwyld Freeway; the old CNR bridge was torn down for it, and dynamiting its piers became a spectacle when demolition crews failed to destroy them completely. The bridge cost $1.5 million at the time. It was renamed in 2001 after former mayor and senator Sidney Buckwold, who served two non-consecutive terms as mayor between 1958 and 1971, the years of the bridge's planning and construction.

Locals call it the Freeway Bridge, and its earlier name, Idylwyld Bridge, is still remembered. In 2001 the structure was renamed for Sidney Buckwold, mayor in two separate terms between 1958 and 1971 and later a senator, the period when the bridge was planned and built.

The bridge carries the Idylwyld Freeway across the South Saskatchewan River, linking the west and east shores of Saskatoon. A 2019–2020 rehabilitation repaired and resurfaced the deck and widened the pedestrian walkways, so walking and cycling crossings are easier than before. Traffic on the freeway is heaviest at rush hour.

During the 2019 rehabilitation, crews found about 350 tons of pigeon droppings stuck to the structure and 1,500 pigeons roosting on it. The contractor was ordered to trap and humanely euthanize the birds, a plan criticized by wildlife advocates; the city later stopped using 4-Aminopyridine for pest control. The work, finished in September 2020, also resurfaced the deck and widened the pedestrian walkways.