Was Tacoma Narrows Bridge the wobbliest bridge in the world? Check out this amazing footage of the collapse of the world's third largest suspension bridge (a...The spectacular collapse of the Tacoma Narrows Bridge, which occurred in 1940, has attracted the attention of engineers, physicists, and mathematicians in the last 70 years. There have been many … ExpandO n 7 November 1940 the Tacoma Narrows Bridge in Washington State collapsed during a gale. The remarkable oscillations of its long and slender center span in the months …Collapse of the Tacoma Narrows Bridge.Aug 11, 2023 ... All the known footage (both from the Tacoma side and the Gig Harbor side) was shot either close to the bridge or directly on it, often with ...The Tacoma bridge is built, with some amazing and exciting footage of men dangling from cages to put the beast together, after a (of course) pompous bridge opening ceremony, Disaster strikes, as the bridge starts weaving to and fro, it's still pretty incredible to see such footage today. Soon, all of this bending causes the whole thing to fall ...The Tacoma Narrows Bridge in Washington state, was with 1.9 km length one of the largest suspended bridges built at the time. The bridge connecting the Tacoma Narrows channel collapsed in a dramatic way on Thursday November 7, 1940. Winds of 35-46 mi/hours =65-75 km/hr) produced an oscillation which eventually broke the …The 1940 Tacoma Narrows Bridge was the first version of the Tacoma Narrows Bridge.It was a suspension bridge in the U.S. state of Washington.The bridge was built over the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula.It opened on July 1, 1940. The bridge collapsed into Puget Sound on …In early May 1940, when workers were building forms and laying concrete for the roadway, the Narrows Bridge began its soon-famous ripple. It was probably one of the "boomers" who dubbed the bouncing span, "Galloping Gertie." Local residents picked up the nickname and it stuck. Weird Fact #6: Tacoma Bridge spans ocean.The dramatic Tacoma Narrows bridge disaster of 1940 is still very much in the public eye today. Notably, in many undergraduate physics texts the disaster is presented as an example of elementary forced resonance of a mechanical oscillator, with the wind providing an external periodic frequency that matched the natural structural frequency.Dec 18, 2020 ... Like tuning forks, structures have natural frequencies (naturally vibrating at a specific rates when disturbed). At the day of the Tacoma ...The 1940 Tacoma Narrows Bridge was the first version of the Tacoma Narrows Bridge. It was a suspension bridge in the U.S. state of Washington. The bridge was built over the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened on July 1, 1940. The bridge collapsed into Puget Sound on November 7 of the …Check out this amazing footage of the collapse of the world's third largest suspension bridge (at the time), Tacoma Narrows Bridge, Washington, in 1940. The only casualty …In July 1940, the Tacoma Narrows bridge opened to traffic between Tacoma, Washington and the Kitsap Peninsula. At the time, it was the third-longest suspension …Engineers still study the collapse of the Tacoma Narrows Bridge, which fell into Puget Sound 83 years ago this month. The project to build the original span during the 1930s was $6.4 million.For over six decades, engineers have studied the collapse of the 1940 Tacoma Narrows Bridge. The experts disagree, at least on some aspects of the explanation. A definitive description that meets unanimous …From insurance litigation to larceny, from salvage to successful funding, the money side of the collapse aftermath became a long chain of frustrating events. The 1940 Narrows Bridge carried insurance spread among 22 different companies. The total insured value was $5.2 million, or 80% of its full value. What problems did engineers face in building the 1940 Narrows Bridge? First and foremost was the geography of the Narrows itself. The Tacoma Narrows is a difficult place to build a bridge. The water is over 200 feet deep. Swift, treacherous tides moving at over 8.5 miles per hour (12.5 feet per second) sweep through the channel four times a day. What problems did engineers face in building the 1940 Narrows Bridge? First and foremost was the geography of the Narrows itself. The Tacoma Narrows is a difficult place to build a bridge. The water is over 200 feet deep. Swift, treacherous tides moving at over 8.5 miles per hour (12.5 feet per second) sweep through the channel four times a day.The premiere of the short version of "700 Feet Down" about the collapse of the original Tacoma Narrows Bridge will air at 11:30 a.m. Saturday at Foss Waterway Seaport's Facebook page. It will ...The collapse of the original bridge. The first Tacoma Narrows Bridge opened to traffic on July 1, 1940. Its main span collapsed into the Tacoma Narrows four months later on November 7, 1940, at 11:00 a.m. (Pacific time) possibly as a result of aeroelastic flutter caused by a 42 mph (68 km/h) wind. Like its predecessor, Galloping Gertie, the 1950 Narrows Bridge became a vital link between Tacoma and communities on the Peninsula. Traffic growth clearly reflects the increase in population, tourism, government facilities, and commercial opportunities over the last 5 decades. By 1970 the daily average number of vehicles climbed to 21,164.🕑 Reading time: 1 minute Construction of the first Tacoma Narrows Bridge started on November 23, 1938, and was opened to the public on July 1, 1940. It was constructed in Washington, US, to connect the cities of Seattle and Tacoma. The main span of the bridge was 853 m, connected with two glazing towers […] The bridge, which connects Tacoma to the Kitsap Peninsula, promises to stimulate the economy of Tacoma. Everyone rejoices, and marvels at its slender beauty. Later its tendency to "gallop" will thrill joy riders and worry engineers. Four months later, on November 7, 1940, the Tacoma Narrows Bridge will collapse. A Dream Come TrueJan 21, 2023 ... http://gabrielemartufi.altervista.org © Tacoma Narrows Bridge Failure (1940) / A Film by Frederick Burt Farquharson / University of ...Nov 4, 2019 · On November 7, 1940, the bridge spanning the Tacoma Narrows Strait of Puget Sound collapsed after moving dramatically up and down during high winds. The brid... Wind can be one of the most critical and complicated loads on civil structures.The case of the Tacoma Narrows bridge is a well-known cautionary tale that’s d... Tacoma Narrows Bridge collapse, November 7, 1940. Ultimately a Federal Works Commission gave three main reasons for the collapse: 1. Aerodynamic instability …The Tacoma Narrows Bridge came down on Nov. 7, 1940, just over four months after opening to traffic. The official cause cited for the collapse was aeroelastic flutter. The only life lost was the dog in Barney Elliott’s video, who drowned inside his owner’s car after it tumbled into Puget Sound.Apr 4, 2018 ... This film shows the collapse of the bridge over the Tacoma Narrows in the state of Washington which happened on 7 November 1940 in 64kmph ...From insurance litigation to larceny, from salvage to successful funding, the money side of the collapse aftermath became a long chain of frustrating events. The 1940 Narrows Bridge carried insurance spread among 22 different companies. The total insured value was $5.2 million, or 80% of its full value. Searching for Tubby: The Tacoma Narrows Bridge Collapse’s Only Victim. It’s now been 78 years since the first Tacoma Narrows Bridge collapsed, but it was just a handful a months ago one local resident discovered he’s now living in the former home of one of the most notable figures from that day. During the process of remodeling, owner …Feb 27, 2019 ... Lost footage of historical Tacoma Narrows Bridge collapse revealed. For the first time, footage of 'Galloping Gertie's' collapse from the Gig ...In 1940 the original, not current, Tacoma Narrows Bridge which was some 2,800 miles away on the west side of the USA, suffered a structural collapse due to poor ...Nov 6, 2020 ... The original Tacoma Narrows Bridge collapses on Nov. 8, 1940. When Galloping Gertie fell. It happened at 11 a.m. Nov. 7, 1940, just four ...The Tacoma Narrows Bridge in Washington state, was with 1.9 km length one of the largest suspended bridges built at the time. The bridge connecting the Tacoma Narrows channel collapsed in a dramatic way on Thursday November 7, 1940. Winds of 35-46 mi/hours =65-75 km/hr) produced an oscillation which eventually broke the …Collapse of the Tacoma Narrows Bridge. On the night of 6 th November, a strong storm blew in the river where Tacoma Narrows Bridge was located. The next morning, the bridge authorities closed the bridge for traffic after noticing that the bridge was undergoing severe undulating motions. The cables on the west side of the bridge were broken and ...Tacoma bridge wobbles, will fall down! Another great "Filling in the blanks" piece of footage as we see the infamous "wobbling bridge" footage but we see how that bridge was built, the opening ceremony and the aftermath! The Tacoma bridge is built, with some amazing and exciting footage of men dangling from cages to put the beast together ...O n 7 November 1940 the Tacoma Narrows Bridge in Washington State collapsed during a gale. The remarkable oscillations of its long and slender center span in the months leading up to the catastrophe earned the bridge the moniker “Galloping Gertie.”. The disaster is especially well known because of dramatic film footage taken the day of the ...Mar 16, 2016 · The third longest suspension span in the world opened on July 1, 1940, connecting Tacoma, Washington to the Olympic Peninsula. Only four months later, the gr... Abstract . In the Wake of Tacoma is the first comprehensive treatment of the changes that the 1940 collapse of the first Tacoma Narrows Bridge has imposed on the design of suspension bridges. Written as a historical narrative, this heavily illustrated book describes design trends before the collapse, the collapse itself, and the investigations to …Galloping Gertie -- The Collapse of the Tacoma Narrows Bridge examines the creation and demise of the original Tacoma Narrows Bridge. Produced by Koyo Kim an...Nearly 10 years after the collapse, a new Tacoma Narrows Bridge opened in the same location, using the original bridge’s tower pedestals and cable anchorages. The portion of the bridge that fell into the water now serves as an artificial reef. The bridge’s collapse had a lasting effect on science and engineering.Aug 12, 2013 · The Tacoma Narrows Bridge, the third-longest suspension bridge in the world at the time, opened on July 1, 1940. A little more than four months later, it collapsed into Puget Sound. Nov 7, 2016 ... The collapse of the Tacoma Narrows Bridge was driven by wind-generated vortices that reinforced the twisting motion of the bridge deck until it ...This videotape shows the collapse of the first Tacoma Narrows bridge, which occurred on the morning of November 7, 1940. It includes a brief history of the bridge’s construction and opening, and of the strange behavior that led to its collapse. Some of the narration, or at least the script, is by Leonard Coatsworth, a reporter for the Tacoma ...In early May 1940, when workers were building forms and laying concrete for the roadway, the Narrows Bridge began its soon-famous ripple. It was probably one of the "boomers" who dubbed the bouncing span, "Galloping Gertie." Local residents picked up the nickname and it stuck. Weird Fact #6: Tacoma Bridge spans ocean.The Tacoma Narrows Bridge collapses in 1940. Since 1966, ASCE has designated over 280 projects as National or International Historic Civil Engineering Landmarks as part of its Historic Civil Engineering Landmark Program.Some of these landmarks –the Brooklyn Bridge, Eiffel Tower, and Hoover Dam – are well-known, while …35K views Watch the amazing "Gallopin' Gertie" November 7, 1940 film clip.1940 Tacoma Narrows Bridge Slender, elegant and graceful, the Tacoma Narrows Bridge stretched...Jun 5, 2017 · Michael Sullivan talks about the 1940 Tacoma Narrows Bridge collapse and its effects on the study of bridge design and civil engineering. C-SPAN's Local Content Vehicles (LCVs) made a stop in ... at approximately 11:00 a.m. It huffed and puffed and a forty-two mile per our wind storm took down the 5,939 foot long bridge linking Tacoma Narrows, in Puget Sound near Tacoma, Washington to Gig Harbor/the Olympic Peninsula. It was the third longest “suspension span,” in the world.Jeremy Kirkmeyer, 33, and 30-year-old Torrey Kirkmeyer were tragically killed in a two-vehicle accident on Friday on the Tacoma Narrows Bridge. According to the Washington State Patrol (WSP), the victims were traveling in a Chevy Sonic that was struck by a Ford Explorer and hit a safety barrier at about 2 p.m. in the toll plaza on State Route …Lessons from the failure of a great machine How Galloping Gertie's collapse left us a lasting design legacy. What's here? The damage First investigations - Partial answers to "why" "Blind spot" - Design lessons of Gertie's failure End of an era Suspension bridge design since 1940 Why did Galloping Gertie collapse? What if.... The $6 million bridge was considered State of the art, but a Washington University professor warned they should have cut holes through the solid girders - to let the wind pass through. 7th November 1940: Tacoma Narrows suspension bridge, in Puget Sound, Washington, vibrating violently just prior to its collapse due to hurricane winds …The Tacoma Narrows Bridge collapsed in 1940 due to aeroelastic flutter, a phenomenon of wind-induced oscillations that led to the failure of the cable anchorages. Learn how this engineering …On the morning of November 7, 1940, the Tacoma Narrows Bridge twisted violently in 42-mile-per-hour winds and collapsed into the cold waters of the Puget Sound. The disaster -- which luckily took ...Nov 13, 2009 · The Tacoma Narrows Bridge was a 5,959-foot-long suspension bridge that spanned the Puget Sound from Gig Harbor to Tacoma, Washington. On November 7, 1940, it collapsed due to high winds, breaking into sections and sinking to the bottom of the sound. Learn about the causes, consequences and legacy of this historic event. THE COLLAPSE. On the morning of November 7, 1940 the wind was blowing through the Narrows at a steady speed of about 42 miles per hour. At 10 AM the bridge began to oscillate severely in the torsional mode and the bridge was closed to traffic. At 11:10 AM the center span collapsed.The dramatic Tacoma Narrows bridge disaster of 1940 is still very much in the public eye today. Notably, in many undergraduate physics texts the disaster is presented as an example of elementary forced resonance of a mechanical oscillator, with the wind providing an external periodic frequency that matched the natural structural frequency.The Tacoma Narrows Bridge in Washington state, was with 1.9 km length one of the largest suspended bridges built at the time. The bridge connecting the Tacoma Narrows channel collapsed in a dramatic way on Thursday November 7, 1940. Winds of 35-46 mi/hours =65-75 km/hr) produced an oscillation which eventually broke the …What problems did engineers face in building the 1940 Narrows Bridge? First and foremost was the geography of the Narrows itself. The Tacoma Narrows is a difficult place to build a bridge. The water is over 200 feet deep. Swift, treacherous tides moving at over 8.5 miles per hour (12.5 feet per second) sweep through the channel four times a day.Wind can be one of the most critical and complicated loads on civil structures.The case of the Tacoma Narrows bridge is a well-known cautionary tale that’s d... Collapse of the Tacoma Narrows Bridge. On the night of 6 th November, a strong storm blew in the river where Tacoma Narrows Bridge was located. The next morning, the bridge authorities closed the bridge for traffic after noticing that the bridge was undergoing severe undulating motions. The cables on the west side of the bridge were broken and ...THE COLLAPSE. On the morning of November 7, 1940 the wind was blowing through the Narrows at a steady speed of about 42 miles per hour. At 10 AM the bridge began to oscillate severely in the torsional mode and the bridge was closed to traffic. At 11:10 AM the center span collapsed.It was an unfortunate morning of 7th November 1940 when winds having speed of 42 miles per hour suddenly twisted the Tacoma Narrows Bridge and lead to its collapse. This accident though didn’t look any lives but it surely made the civil engineers to think new ways to combat bridge collapses. It is located in Tacoma, Washington, USA and was ...The story of Galloping Gertie, the first Tacoma Narrows Bridge, is captured through the eyes of a young boy who not only watches the bridge being built, but also witnesses its spectacular collapse not long after the bridge is opened. Author Amanda Abler tells the bridge's dramatic story in a factual and engaging way that makes the …The original Tacoma Narrows Bridge was built between November 1938 and July 1, 1940. Lauded as an essential economic and military portal to the Olympic peninsula, its completion was called a triumph of man's ingenuity and perseverance. Four months after it opened to the public it fell, in what was later called "the Pearl Harbor of engineering." Tacoma Narrows Bridge Collection. Known mainly for its infamous collapse in 1940, the Tacoma Narrows Bridge continues to hold a place in engineering and Pacific Northwest history. This collection contains images and text drawn from the University of Washington Special Collections Division and the Museum of History and Industry.But in the case of the Tacoma Narrows Bridge, there was no resonance. According to Farquharson, one of the main investigators of. the cause of the bridge collapse, the wind was steady at 42 miles per hour and the. frequency of the destructive mode was 12 cycles/minute. This was neither a natural.The Tacoma Narrows bridge collapsed Nov. 7, 1940. Video of the disaster is notorious. "700 Feet Down," a locally made film that was originally released last year has been expanded and is getting ...35K views Watch the amazing "Gallopin' Gertie" November 7, 1940 film clip.1940 Tacoma Narrows Bridge Slender, elegant and graceful, the Tacoma Narrows Bridge stretched...Made up of large concrete blocks set in sand and gravel of the Narrows banks, the anchorages each weighed about 44,000 tons and were created to resist the cable pulls of the bridge. South splay casting on the east anchorage of the Tacoma Narrows Bridge, March 5, 1940. PH Coll. 11.27 University of Washington Libraries. The premiere of the short version of "700 Feet Down" about the collapse of the original Tacoma Narrows Bridge will air at 11:30 a.m. Saturday at Foss Waterway Seaport's Facebook page. It will ...Essay by Hannah Palin with Nicolette Bromberg. Construction began on the Tacoma Narrows Bridge in November 1938. On July 1, 1940, the bridge opened to traffic. Lauded as an essential economic and military portal to the Olympic Peninsula, its completion was called a triumph of man’s ingenuity and perseverance.The most iconic example of such a failure is the collapse of the Tacoma Narrows Bridge in 1940 when the right wind condition drove the bridge to its resonance frequency [1]. Since the structures ...Nov 1, 2015 · The most iconic example of such a failure is the collapse of the Tacoma Narrows Bridge in 1940 when the right wind condition drove the bridge to its resonance frequency [1]. Since the structures ... The dramatic Tacoma Narrows bridge disaster of 1940 is still very much in the public eye today. Notably, in many undergraduate physics texts the disaster is presented as an example of elementary forced resonance of a mechanical oscillator, with the wind providing an external periodic frequency that matched the natural structural frequency.Apr 5, 2021 · Some of these landmarks –the Brooklyn Bridge, Eiffel Tower, and Hoover Dam – are well-known, while others are less prominent. Designated a National Historic Civil Engineering Landmark by ASCE in 2011, the Tacoma Narrows Bridge in Tacoma, Washington, is the rare landmark that is considered a qualified failure for its collapse in 1940. The collapse of the Tacoma Narrows Bridge occurred on then morning of November 7, 1940. Early that morning, the winds picked up blowing at 40-45 miles per hour causing traffic on the bridge to be shut down. Measurements and video began to be recorded so that the phenomena could be examined later. The bridge developed larger …In this online engineering PDH course you will learn about how the engineering profession gained important new insights into the importance of aerodynamics in bridge design as a result of the ethical dilemma faced by the designers of the first Tacoma Narrows Bridge. This course will examine the ethical issues that arose from the 1940 collapse ...The Tacoma Narrows Bridge collapse on November 7, 1940. By Priscilla Long/HistoryLink.org November 07, 2019 at 11:22 am PST This essay by historian Priscilla Long was provided by HistoryLink.org .Tacoma Narrows Bridge Collapse 4k UpscaledThe Tacoma Narrows Bridge was poorly constructed and swayed and bent. This is a pretty sweet video of the bridge collapsing.The Tacoma Narrows Bridge is a pair of twin suspension bridges that span the Tacoma Narrows strait of Puget Sound in Pierce County, Washington. The bridges c...The third longest suspension span in the world opened on July 1, 1940, connecting Tacoma, Washington to the Olympic Peninsula. Only four months later, the gr...In 2007, a Bechtel joint venture with Kiewit Pacific completed the longest U.S. suspension bridge built in four decades—the new Tacoma Narrows Bridge. As the third bridge to cross Puget Sound from Tacoma to Gig Harbor, the new span shares traffic with its adjacent namesake, which was completed following the spectacular collapse of the first ...Dec 6, 2011 ... The original Tacoma Narrows Bridge opened on July 1, 1940. It received its nickname "Galloping Gertie" because of the vertical movement of ...The Tacoma Narrows Bridge is a pair of twin suspension bridges that span the Tacoma Narrows strait of Puget Sound in Pierce County, Washington. The bridges c...
THE COLLAPSE. On the morning of November 7, 1940 the wind was blowing through the Narrows at a steady speed of about 42 miles per hour. At 10 AM the bridge began to oscillate severely in the torsional mode and the bridge was closed to traffic. At 11:10 AM the center span collapsed.. Checkbox in excel
The collapse. The Tacoma Narrows Bridge opened to traffic on July 1, 1940, with much fanfare and celebration. However, it soon became apparent that the bridge had a serious problem: it moved too ...The 1940 Tacoma Narrows Bridge, the first Tacoma Narrows Bridge, was a suspension bridge in the U.S. state of Washington that spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year.at approximately 11:00 a.m. It huffed and puffed and a forty-two mile per our wind storm took down the 5,939 foot long bridge linking Tacoma Narrows, in Puget Sound near Tacoma, Washington to Gig Harbor/the Olympic Peninsula. It was the third longest “suspension span,” in the world.Feb 27, 2019 ... Lost footage of historical Tacoma Narrows Bridge collapse revealed. For the first time, footage of 'Galloping Gertie's' collapse from the Gig ...The premiere of the short version of "700 Feet Down" about the collapse of the original Tacoma Narrows Bridge will air at 11:30 a.m. Saturday at Foss Waterway Seaport's Facebook page. It will ...The collapse. The Tacoma Narrows Bridge opened to traffic on July 1, 1940, with much fanfare and celebration. However, it soon became apparent that the bridge had a serious problem: it moved too ...Oct 22, 2023 ... In 1940, the Tacoma Narrows Bridge was counted as one of the superstructures of the time. It was the world's third-longest suspension bridge, ...Dec 15, 2016 · His most well-known piece of work, the von Kármán vortex street, tragically, reached public notoriety after it explained the collapse of a suspension bridge over the Puget Sound in 1940. The von Kármán vortex street is a direct result of boundary layer separation over bluff bodies. Immersed in fluid flow, any body of finite thickness will ... The Tacoma Narrows Bridge collapse was a wake-up call for the engineering community, highlighting the importance of considering all potential sources of stress and strain when designing structures. In the aftermath of the disaster, engineers began to study the phenomenon of aeroelastic flutter in greater depth, leading to the …Michael Sullivan talks about the 1940 Tacoma Narrows Bridge collapse and its effects on the study of bridge design and civil engineering. C-SPAN's Local Content Vehicles (LCVs) made a …The original Tacoma Narrows Bridge was built between November 1938 and July 1, 1940. Lauded as an essential economic and military portal to the Olympic peninsula, its completion was called a triumph of man's ingenuity and perseverance. Four months after it opened to the public it fell, in what was later called "the Pearl Harbor of engineering."From the modal analysis in ANSYS, the data of total deformation of Tacoma bridge is much higher than that of George Washington Bridge. Therefore, four factors are combined to demonstrate the collapse of Tacoma. This 1940s event is regarded as having landmark meaning and provide relative experience in the modern bridge constructions.The World Inside by Tacoma Narrows Bridge Disaster, released 19 August 2021 1. Machinations 2. The World Inside 3. Presynaptic 4. Truth Escapes 5. Postsynaptic 6. Apocryphal Whether biologically or socially, we seem to be trapped, each of us, in our own little subjective fantasy that leads to post-truth phenomenon, that leads to tribe-against …This video discusses the collapse of the Tacoma Narrows Bridge, a classic case study of engineering failure. The bridge collapsed due to wind-induced motion ...Cable and broken concrete resulting from the collapse of the Tacoma Narrows Bridge, November 1940. Seattle Post-Intelligencer Collection, PI- 20798. Courtesy of the Museum of History and Industry. Slideshow. Five men walk to the collapsed central span of the Tacoma Narrows Bridge. PH Coll. 290.57 University of Washington Libraries. Nov 7, 2023 ... On Nov. 7, 1940, the brand new Tacoma Narrows Bridge collapsed in spectacular fashion during a windstorm. TACOMA, Wash. -- It was ...O n 7 November 1940 the Tacoma Narrows Bridge in Washington State collapsed during a gale. The remarkable oscillations of its long and slender center span in the months leading up to the catastrophe earned the bridge the moniker “Galloping Gertie.”. The disaster is especially well known because of dramatic film footage taken the day of the ...The first Tacoma Narrows Bridge, completed and destroyed in 1940, earned the nickname "Galloping Gertie." We use the "Gertie" label or "1940 Narrows Bridge." The westbound bridge we drive over today was completed in 1950. We call this one the "Current Narrows Bridge." The new eastbound bridge most recently completed is referred to as the "2007 ... Nov 6, 2020 ... Saturday, November 7 marks the 80th anniversary of the dramatic collapse of Galloping Gertie, the original Tacoma Narrows Bridge.The collapse of the Tacoma Narrows Bridge occurred at approximately 11:00 AM on November 7, 1940 under the action of a wind approximately 42 mph. Witnesses to the fall were numerous reporters, engineers and onlookers. A dog trapped in an abandoned car on the bridge was the only fatality. The original Tacoma Narrows Bridge was built between November 1938 and July 1, 1940. Lauded as an essential economic and military portal to the Olympic peninsula, its completion was called a triumph of man's ingenuity and perseverance. Four months after it opened to the public it fell, in what was later called "the Pearl Harbor of engineering." .