1977 natural disaster in and around Johnstown, Pennsylvania
Johnstown flood of 1977
Aerial view of the flood.
Date
July 19, 1977 to July 20, 1977
Location
Johnstown area, Pennsylvania, United States
Deaths
84
Property damage
US$340 million (Johnstown: $137 million; surrounding areas: $213 million)[1]
The Johnstown flood of 1977 was a major flood which began on the night of July 19, 1977, when heavy rainfall caused widespread flash flooding in Cambria County, Pennsylvania, United States, including the city of Johnstown and the Conemaugh Valley.
On July 19, a deluge of rain hit the Johnstown area during the night. Nearly 12 inches (300 millimetres) of rain fell in 24 hours when a thunderstorm stalled over the region, and six dams in the area over-topped and failed. The largest dam to fail was the Laurel Run Dam, releasing over 101 million U.S. gallons (380,000 cubic meters) of water that poured through the village of Tanneryville, killing 41 people. The combination of the other five dams[2] released another 27 million US gallons (100,000 m3), not counting the water from rains. Well over 128 million US gallons (480,000 m3) of water from the dams alone poured down the valley, and by dawn Johnstown was inundated with six feet (1.8 m) of water. The channel improvements were designed to carry 81,500 cu ft/s (2,310 m3/s), but the 1977 flood discharge was measured as 115,000 cu ft/s (3,300 m3/s).[3] Ron Shawley, executive director of Laurel Highland's Historical Village, returned to Johnstown on July 20 and stated "It was like somebody dropped an atomic bomb on Johnstown" and that "I questioned what kind of force it would take to do that."[4]
^NOAA:1977 damages, Retrieved 2016-01-01
^Dam safety:Number of failures in 1977[permanent dead link], Retrieved 2016-01-01
The Johnstownfloodof1977 was a major flood which began on the night of July 19, 1977, when heavy rainfall caused widespread flash flooding in Cambria...
The JohnstownFlood, sometimes referred to locally as Great Floodof 1889, occurred on Friday, May 31, 1889, after the catastrophic failure of the South...
The Johnstownfloodof 1936, also collectively with other areas referred to as the Saint Patrick's Day Flood, was a devastating flood in Cambria County...
folded in 1977. The team itself folded in the offseason, when the Johnstownfloodof1977 damaged the arena's ice making equipment. Johnstown was later...
The JohnstownFlood National Memorial is a unit of the United States National Park Service. Established in 1964 through legislation signed by President...
during the JohnstownFloodof1977. It had the largest reservoir of seven dams to fail between July 19 and 20, 1977 and caused the most fatalities of the two...
in its history, the Johnstown Inclined Plane fulfilled its role as a means of evacuation from floods—once in 1936 and again in 1977. The incline was listed...
The Johnstown Jets called the arena home from 1950 until 1977 and won four league championships during their time at the arena. The Johnstownfloodof 1977...
elected chief ofJohnstown, including population decline, the 1977Johnstownflood and the collapse of the steel industry, which included one of the city's...
(2006). "1864: Explosion of the Washoe". California Disasters, 1812-1899: Firsthand Accounts of Fires, Shipwrecks, Floods, Epidemics, Earthquakes and...
engaged in mind-control experiments. 1977 – The Johnstownfloodof1977 kills 84 people and causes millions of dollars in damages. 1981 – Somali Airlines...
Johnstown Redevelopment Authority is an authority that oversees commercial development in the City ofJohnstown, Pennsylvania. Johnstown Redevelopment...
Adirondack Red Wings of the AHL. At the time, Adirondack was the primary affiliate of the Detroit Red Wings. A year after Johnstown's1977flood, former Jets...
1977, p.I-4 "Egypt Returns 19 Bodies to Israel; Actions Seen as Peace Gesture", Los Angeles Times, July 20, 1977, p.I-13 "New Flood Hits Johnstown; 25...
in English literature from Yale University. His first book was The JohnstownFlood (1968), and he wrote nine more on such topics as Harry S. Truman, John...
This is a list consisting of the deadliest floods worldwide with a minimum of 60 deaths Only floods having caused 10 fatalities or more in 21st-century...
States, just outside the city of Toccoa. Heavy rainfall caused it to collapse on November 6, 1977, and the resulting flood killed 39 people and caused $2...
effects of the disaster entitled Everything in Its Path: Destruction of Community in the Buffalo Creek Flood (1978). Erikson's book later won the 1977 Sorokin...
South Fork Dam in Johnstown, Pennsylvania, resulting in the JohnstownFlood (the "great floodof 1889"). Erosion rates are often monitored, and the risk is...
original on 2022-10-18. Retrieved 2022-10-25. Coleman, Neil M. (2018). Johnstown'sFloodof 1889 - Power Over Truth and The Science Behind the Disaster. Springer...
Global Information