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The Bronx–Whitestone Bridge, which is of similar design to the 1940 Tacoma Narrows Bridge, was reinforced shortly after the collapse. Fourteen-foot-high (4.3 m) steel trusses were installed on both sides of the deck in 1943 to weigh down and stiffen the bridge in an effort to reduce oscillation.
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. The bridge collapse had lasting effects on ...
Cause: Vibration—Sheep herd crossing bridge [20] Tacoma Narrows Bridge: 1940: Nov 7, 1940: Tacoma Narrows (Puget Sound) Cause: Wind/Design flaw—Aeroelastic fluttering (wind dynamics) leading to structural failure Detillion Bridge: Unknown: May 24, 1939: Spokane River: Cause: Collision—Tractor-trailer collision on deck [21] Allen Street Bridge
Moisseiff called the Tacoma Narrows Suspension Bridge, the first bridge that he designed as the leading engineer, the "most beautiful bridge in the world." However, he lost his strong reputation when this narrow span across the Puget Sound in Washington State collapsed in a windstorm four months after it opened in 1940.
Wind caused 1940 Tacoma Narrows Bridge collapse. Ibrahim and Yang Lu, an associate professor of civil engineering at Boise State and an expert in forensic analysis of failed structures, ...
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On November 7, 1940, the low pressure system that later developed into the storm was affecting the Pacific Northwest and produced the 40 mph (64 km/h) winds that destroyed the Tacoma Narrows Bridge. On November 10 the fast-moving storm crossed the Rocky Mountains in just two hours on its way to the Midwest. [6] [7]
In 2009, a man in a red sweatshirt identified as Christian Robert Basham was seen walking towards the midspan of the Tacoma Narrows bridge, according to a Kitsap Sun story published March 28, 2009 ...