Order URL: © 2017 American Society of Civil Engineers. This paper focuses on failure during construction. The National Academies of Sciences, Engineering, and Medicine, Copyright © 2020 National Academy of Sciences. It spanned the Puget Sound from Gig Harbor to Tacoma, which is 40 miles south of Seattle. On June 17, 1958 at 3:40 p.m., people from all over Vancouver stopped to listen, as two spans collapsed, tossing 79 workers into Burrard Inlet and killing 18 of them. Some described the noise of the bridge collapsing into the Second Narrows as gunfire or an explosion, others as a rumble or a loud snapping sound. On June 17, 1958 two spans of the Second Narrows Bridge, then under construction, collapsed into Burrard Inlet, killing 19 men in what remains the worst industrial DISASTER in VANCOUVER's history. Collapse of the Second Narrows Bridge. But that classic explanation is … This presentation will provide an overview of the collapse and summarize the effects of the disaster and the findings as to what caused the collapse. After an extensive investigation, it was discovered that a temporary bent, designed by an inexperienced engineer and inadequately checked by a senior engineer failed, which lead to the collapse of two spans. He was the first newsman on the waterfront and the scene was overwhelming. Twenty others were seriously injured. Bridge Planned. There are numerous incidents of bridge failures after construction. On June 17, 1958, 79 workers constructing the new Second Narrows Bridge in Vancouver, BC, Canada, were plunged into Burrard Inlet when a portion of the bridge collapsed during construction, resulting in the loss of 19 lives, including 15 ironworkers, 2 engineers, a painter and a commercial diver who drowned a few days later while trying to recover a body. There are many valuable lessons from the Commission Reports related to the roles and responsibilities of contractor’s engineers in their design of the falsework that was intended to support a portion of span number 5 until the structural steel erection had reached Pier 15 and for the responsibilities and duties of engineers in post-disaster inspections and investigations. All Rights Reserved. Some of these lessons will be highlighted in this paper. In 2004 Eric Daichi Ishikawa, one of the students taking part in that year’s Historica event (in which students from elementary schools all across Canada prepare historical exhibits on topics of their choice), assembled an illustrated report on the June 17, 1958 collapse of the Second Narrows Bridge. The footage became the basis for a textbook example of resonance, which is a standard topic in high school physics. It was a combination of engineering mistakes, flawed material and procedures, and inappropriate safety standards that resulted in failure. When the Tacoma Narrows Bridge over Puget Sound in the state of Washington famously collapsed on November 7, 1940, it was captured on film for posterity. The channel is about a mile wide where the bridge crossed the sound. The Second Narrows Bridge Collapse. Terms of Use and Privacy Statement, https://doi.org/10.1061/9780784481035.014. On June 17, 1958, 79 workers constructing the new Second Narrows Bridge in Vancouver, BC, Canada, were plunged into Burrard Inlet when a portion of the bridge collapsed during construction, resulting in the loss of 19 lives, including 15 ironworkers, 2 engineers, a painter and a commercial diver who drowned a few days later while trying to recover a body. Collapse of the Second Narrows Bridge during Construction ... Share. Location: Duluth Minnesota, United States. The bridge was renamed the "Ironworkers Memorial Second Narrows Crossing" in 1994 to honour the eighteen workers who died in the collapse, along with one rescue diver and four other workers who also died during the construction process. Unfortunately, those gentlemen were on the bridge when it failed and both were killed. by Eve Lazarus on June 16, 2016. Sleek and slender, it was the third longest suspension bridge in the world at the time, covering 5,959 feet. Find a library where document is available. • 1902 V. W. and Y Railway completed to Burnaby. In 1994, the bridge was officially renamed the “Ironworkers Memorial Second Narrows Crossing” in honour of the workers who died on that day. Abstract. The collapse of the Second Narrows bridge in 1958 was a traumatic event for Bower. The Tacoma Narrows Bridge was built in Washington during the 1930s and opened to traffic on July 1, 1940. Following the collapse, the British Columbia Government established a Royal Commission to examine the cause(s) of the collapse and the lessons learned as a result.

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