Disaster

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Delhi Dam (Delaware County, Iowa)
Built 1929, Partially destroyed when significant rainfall cause the dam to fail in 2010
Dam over Maquoketa River, top of the dam used as a bridge.
Partially destroyed bridge above dam.

Hatchie River US 51 Bridge (Tipton County, Tennessee)
Built 1936; parallel southbound bridge built 1974; collapsed April 1, 1989, killing 8 people; replaced by new bridge in 1992
Lost Concrete tee beam bridge over Hatchie River on Northbound US 51 (TN 3)
Collapsed

I-35W Mississippi River Bridge (Hennepin County, Minnesota)
Built 1967; collapsed Aug. 1, 2007; new bridge built in 2008
Collapsed deck truss bridge over the Mississippi River on I-35W in Minneapolis
Collapsed

Melan Bridge (Shawnee County, Kansas)
Opened January 12, 1898 with 5 Main Spans, 4 more outer spans built 1903 after flooding washed out approaches, collapsed 1965 when replacement span was being built, replacement bridge opened 1967 slightly downstream
Lost Closed-spandrel arch bridge over Kansas River on Kansas Avenue
Lost, Destroyed by Partial Collapse July 2, 1965, Replaced by a new bridge 1967

Mianus River I-95 Bridge (Fairfield County, Connecticut)
Built 1958; partially collapsed June 28, 1983, killing 3 people; entire bridge replaced by new bridge in 1992
Lost deck plate girder bridge over Mianus River on I-95
One span collapsed due to corrosion of pin-and-hangar assembly

Schoharie Creek Bridge (Montgomery County, New York)
Built 1953-54; collapsed April 5, 1987, killing ten people; replaced by new bridge 1988
Lost deck plate girder bridge over Schoharie Creek on I-90/New York State Thruway
Collapsed due to a flash flood undermining the piers