High Level Bridge (Edmonton)

[5] The first CPR train, pulling seven cars and 200 passengers, operated on June 2, 1913, after which the bridge became a part of the Calgary-Edmonton main line.

City Council considered converting the bridge's upper deck into traffic lanes for vehicles on several occasions, starting in 1938.

[9] Project delays caused the capital costs to increase, and the proposal went back to voters with a larger budget in a 1950 plebiscite.

[9] The initial plan was for one traffic lane in each direction that would connect downtown with Whitemud Drive, and the middle portion of the upper deck would remain a right-of-way for CPR trains.

[9] Mayor William Hawrelak requested that CP cease its operations on the bridge, so that the upper deck could accommodate four lanes in total, instead of two.

[9] This idea was rejected by CPR in December 1963, who explained that it could not serve Edmonton, especially its freight customers, if it used the same station and tracks as Canadian National Railway, which Hawrelak proposed as an alternative to using the bridge.

[6] This led to the city placing a hold on plans for the future Centre LRT Line to cross the North Saskatchewan.

[16] By the time the City of Edmonton took ownership of the bridge, the main trusses had lost approximately 44 percent of their width due to rust.

[6] Repainting and other maintenance of the bridge slowed the corrosion; It is estimated that during the last 25 years the trusses have lost only an additional 5 percent of their widths.

The official lighting of the bridge was synchronized to the tune of "O Canada", played by the Edmonton Symphony Orchestra and broadcast on CKUA radio.

[18] The lights can display many different colours and are often programmed to coordinate with local events, such as green and gold for games played by the Edmonton Elks.

The man-made waterfall dropped 64 m (210 ft) from the top of the bridge, (7 m higher than Niagara Falls) into the North Saskatchewan River at a rate of 50,000 litres per minute.

The final decision to decommission the waterfall was stayed until fall 2014, as public reaction was gauged and community fundraising options were considered.

High Level Bridge under construction, 1912 or 1913
Circa 1925
The Great Divide waterfall during the annual sourdough raft race, July 2001