Lions Gate Bridge

Lions Gate Bridge
Lions Gate Bridge from Stanley Park, 2013
Coordinates	49°18′55″N 123°8′18″W
Carries	Three lanes of British Columbia Highway 1A/99, pedestrians and bicycles
Crosses	Burrard Inlet
Locale	Vancouver West Vancouver
Official name	First Narrows Bridge
Maintained by	British Columbia Ministry of Transportation
Characteristics
Design	Suspension bridge
Total length
Height	111 m (364 ft)
Longest span	473 m (1,552 ft)
Load limit	13 tonnes (12.8 long tons; 14.3 short tons)
Clearance below	61 m (200 ft)
History
Designer	Charles Nicholas Monsarrat Philip Louis Pratley
Construction start	March 31, 1937
Opened	November 14, 1938
Statistics
Daily traffic	60,000 – 70,000
National Historic Site of Canada
Official name	Lions Gate Bridge National Historic Site of Canada
Designated	24 March 2005
Reference no.	11711
Location

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Location of Lions Gate Bridge in Vancouver

The Lions Gate Bridge, opened in 1938, officially known as the First Narrows Bridge, is a suspension bridge that crosses the first narrows of Burrard Inlet and connects the City of Vancouver, British Columbia, to the North Shore municipalities of the District of North Vancouver, the City of North Vancouver, and West Vancouver. The term "Lions Gate" refers to The Lions, a pair of mountain peaks north of Vancouver. Northbound traffic on the bridge heads in their general direction. A pair of cast concrete lions, designed by sculptor Charles Marega, were placed on either side of the south approach to the bridge in January 1939.

The total length of the bridge including the north viaduct is 19,000 m (62,336 ft). The length including approach spans is 1,517.3 m (4,978 ft), the main span alone is 473 m (1,552 ft), the tower height is 111 m (364 ft), and it has a ship's clearance of 61 m (200 ft). Prospect Point in Stanley Park offered a good high south end to the bridge, but the low flat delta land to the north required construction of the extensive North Viaduct.

The bridge has three reversible lanes, the use of which is indicated by signals. The centre lane changes direction to accommodate for traffic patterns. The traffic volume on the bridge is 60,000 - 70,000 vehicles per day. Trucks exceeding 13 tonnes (12.8 long tons; 14.3 short tons) are prohibited, as are vehicles using studded tires. The bridge forms part of Highways 99 and 1A.

On March 24, 2005, the Lions Gate Bridge was designated a National Historic Site of Canada.

History

Lions Gate Bridge under construction

In 1890, the land speculator George Grant Mackay wrote in the local paper that he foresaw a bridge over the first narrow. The decision on whether to build the bridge was put to the electorate of Vancouver in 1927, but the first plebiscite was defeated and the idea was put to rest for the time being.

Alfred James Towle Taylor, an engineer with a land interest in the construction of the bridge, worked to overcome local opposition to its construction. Taylor was able to convince the Guinness family (of the Irish stout fame) to invest in the land on the north shore of Burrard Inlet. They purchased 4,700 acres (1,902 ha) of West Vancouver mountainside through a syndicate called British Pacific Properties Ltd.

On December 13, 1933, a second plebiscite was held, passing with 70 percent in favour. After considerable further negotiations with the federal government, approval was finally granted, with the requirement that Vancouver materials and workmen be used as much as possible to provide employment during the Great Depression. The 1933 bylaw authorizing construction included a provision mandating that "no Asiatic person shall be employed in or upon any part of the undertaking or other works."

The bridge was designed by the Montreal firm Monsarrat and Pratley, which was later responsible for the Angus L. Macdonald Bridge in Halifax, Nova Scotia using a similar design. Other companies involved in the construction of the bridge include: Swan Wooster Engineering, Parsons Brinckerhoff Quade & Douglas, Rowan Williams Davies & Irwin Inc., Canron Western Constructors, Dominion Bridge Company, American Bridge Company.

Lions Gate Bridge as seen from the air

Construction began on March 31, 1937. After one and a half years and a cost of $5,873,837.17 (CAD), it opened to traffic on November 14, 1938. On May 29, 1939, King George VI and Queen Elizabeth presided over the official opening during a royal visit to Canada. A toll of 25 cents was charged for each car or horse and carriage; five cents was charged for pedestrians or bicycles. On January 20, 1955, the Guinness family sold the bridge to the province for $5,959,060 and on April 1, 1963 the toll was removed. The newly constructed bridge differed from the current configuration of the bridge as it originally had only two lanes. Yet, as had been foreseen, West Vancouver's population boomed as a result of the new connection. Thus, to accommodate the increased population, the lanes were divided into three with the middle lane acting as a passing lane. Eventually overhead lane control signals were installed, enabling traffic in the centre lane to be directed in either direction, and facilitating emergency vehicle access by closing off the center lane.

Another difference with the original configuration was that in an effort to recover the expenditure it cost to build the bridge, the Guinness family had toll booths installed. The toll remained on the bridge until April 1, 1963. Changes were made shortly after, as the tolls were removed and overhead lane controls were added.

In 1975, the deteriorating north viaduct was replaced with a lighter, wider, and stronger steel deck with wider lanes. This was carried out in sections using a series of short closures of the bridge; each time, one old section was lowered from the bridge and its replacement was put into place.

In 1986 the Guinness family, as a gift to Vancouver, purchased decorative lights that make it a distinctive nighttime landmark. In July 2009, the bridge's lighting system was updated with new LED lights to replace its system of 100-watt mercury vapour bulbs. The switch to LEDs was expected to reduce power consumption on the bridge by 90 per cent and save the Province about $30,000 a year in energy and maintenance costs.

The main bridge deck was replaced in 2000 and 2001 – the first time the deck of a major suspension bridge had been replaced. As with the earlier work, this was facilitated by a series of separate nighttime and weekend closures to replace one section at a time. The old section would be lowered to a barge, and the new one raised into place and connected. The change allowed the two pedestrian walkways to be moved to the outside of the structure and the road lanes were accordingly widened from 3 to 3.6 m (from 10 to 12 ft) each.

In popular culture

• The bridge is often used in television broadcasts as a symbol of Vancouver; most telecasts of NHL hockey games played in Vancouver show the bridge at least once.
• The bridge is the namesake of locally founded film company Lionsgate.
• The bridge was featured as a set in the 2011 film Final Destination 5.

Gallery

• 
  Lions Gate Bridge at Sunset, 2013
• 
  Lions Gate Bridge from Downtown Vancouver
• 
  Lions Gate Bridge and North Vancouver from Prospect Point in Stanley Park
• 
  Lions Gate Bridge deck replacement procedure progress as of April 22, 2001
• 
  Lions Gate Bridge at First Narrows reflected in tide pools at sunset, 2002
• 
  Lions Gate Bridge in relation to Vancouver city and harbour viewed from Cypress Viewpoint, December 2012
• 
  Lions Gate Bridge from Stanley Park, 2013

See also

• 1946 Vancouver Island earthquake
• List of bridges
• List of bridges in Canada

External links

• 1938 film about the construction of the bridge
• Building a Vancouver Icon: The Lions Gate Bridge — the construction of the Lions Gate Bridge (illustrated with many photographs)
• Bridges of Greater Vancouver
• Lions' Gate Bridge at Structurae