The Angus L. Macdonald Bridge is a suspension bridge crossing Halifax Harbour in Nova Scotia, Canada; it opened on April 2, 1955. The bridge is one of two suspension bridges linking the Halifax Peninsula to Dartmouth in the Halifax Regional Municipality. It is named after the former premier of Nova Scotia, Angus L. Macdonald, who had died in 1954 and had been instrumental in having the bridge built. The bridge was designed by Philip Louis Pratley, one of Canada's foremost long-span bridge designers who had also been responsible for the Lions Gate Bridge in Vancouver. The bridges have a similar design, which is most notable in the towers. The contractor was Dominion Bridge Company Ltd. The bridge regularly experiences traffic congestion during rush hours as a result of the structure's proximity to the downtown cores of Halifax and Dartmouth, as well as its narrow width. Large commercial vehicles are not permitted to cross and must use the wider MacKay Bridge to the northwest. Public transit buses are allowed to cross and the bridge links several Halifax Transit routes. In 2014/15 the average number of vehicle crossings per month was 1,183,095. As of January 3, 2022 the toll charge to cross for regular passenger vehicles is $1.25 cash or $1.00 with the MACPASS electronic toll system. The original toll, when the Macdonald opened in 1955, was 40 cents plus 5 cents per passenger. There was also a separate toll for trucks, cyclists, pedestrians, motorcycles and horses/rider. History Construction of the bridge took place between 1952 and 1955. Caissons were used for underwater work. Five workers died falling from catwalks during construction. The bridge opened on April 2, 1955, and originally cost $11.5 million. 1999 modernization A modernization project was undertaken in the late 1990s and completed in 1999 which saw the original two lanes and one sidewalk and utility corridor expanded to three lanes, with the centre lane being reversible to assist with traffic flow during peak periods. To reduce the weight of the roadway, asphalt and concrete were removed and special steel plating (an orthotropic deck) was used in its place. This deck is 35% lighter than the old one. New pedestrian and bicycle lanes were attached to the outside of the structure to replace the original sidewalks. External aesthetic lights were added during the modernisation project which saw the bridge's towers lit for the first time on a continuous