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On this day, April 27, 1978, 51 workers died in the deadliest construction accident in United States history.
Last edited Thu Oct 10, 2024, 10:10 AM - Edit history (1)
https://en.wikipedia.org/wiki/April_27• 1978 – Willow Island disaster: In the deadliest construction accident in United States history, 51 construction workers are killed when a cooling tower under construction collapses at the Pleasants Power Station in Willow Island, West Virginia.
Willow Island disaster
Date: April 27, 1978
Location: Willow Island, West Virginia
Coordinates: 39.367238°N 81.291484°W
Cause: The scaffolding failed because the concrete holding it had been given insufficient time to cure.
Outcome: 51 construction workers killed
The Willow Island disaster was the collapse of a cooling tower under construction at the Pleasants Power Station at Willow Island, West Virginia, on April 27, 1978. 51 construction workers were killed. It is thought to be the deadliest construction accident in U.S. history.[3]
Background
Pleasants Power Plant with its two cooling towers shown here in 2015.
During the 1970s, many coal-powered power plants were being built in the valley along the Ohio River. The Allegheny Power System was building another, larger plant at Willow Island, which would have two electric generators with a total capacity of 1,300 megawatts. This was in addition to the two smaller units that were already installed there.
By April 1978, one natural draft cooling tower had been built, and a second was under construction. One of the contractors, New Jersey-based Research-Cottrell, was well known for constructing such towers around the country.
The usual method of scaffold construction has the base of the scaffold built on the ground, with the top being built higher to keep up with the height of the tower. The scaffolding on the Willow Island cooling tower was bolted to the structure it was being used to build. A layer of concrete was poured; then, after the concrete forms were removed, the scaffolding was raised and bolted onto the new section. Cranes atop the scaffolding raised buckets of concrete. One 5-foot (1.5 m) lift of concrete was poured each day.
Collapse
On April 27, 1978, tower number 2 had reached a height of 166 feet (51 m). Just after 10:00 a.m., the previous day's concrete started to collapse under the weight of the scaffolding and the construction workers on it. Concrete and scaffolding began to unwrap from the top of the tower, first peeling counter-clockwise, then in both directions. A jumble of concrete, wooden forms, metal scaffolding, and construction workers fell into the hollow center of the tower. All fifty-one construction workers on the scaffold fell to their deaths.
Immediately following the collapse, other construction workers onsite began digging for their coworkers. Fire departments from Belmont, Parkersburg, Vienna, and St. Marys in West Virginia, and Marietta in Ohio, were called in. Ambulances from Parkersburg and Marietta hospitals were also dispatched. The Volunteer Fire Department in Belmont was turned into a temporary morgue. Many of the men could be identified only by the contents of their pockets. All but one worker were identified by co-workers.
Investigation
The Occupational Safety and Health Administration (OSHA) investigation team arrived at the site the day of the accident. A team from the National Bureau of Standards (now called the National Institute of Standards and Technology) arrived two days later.
A number of safety lapses caused the collapse:
On June 8, 1978, OSHA cited Willow Island contractors for 20 violations, including failures to field test concrete and anchor the scaffold system properly. The cases were settled for $85,500, or about $1,700 per worker killed. OSHA referred the case to the United States Department of Justice for criminal investigation. A grand jury was convened, but no charges were filed.
{snip}
References
[3] Ward, Jr., Ken (April 27, 2008). "'It was gone': String of problems led to 51 deaths at Willow Island". The Charleston Gazette. Archived from the original on May 1, 2008. Retrieved April 10, 2013.
https://web.archive.org/web/20080501181924/http://wvgazette.com/News/WillowIsland/200804250422
{snip}
Date: April 27, 1978
Location: Willow Island, West Virginia
Coordinates: 39.367238°N 81.291484°W
Cause: The scaffolding failed because the concrete holding it had been given insufficient time to cure.
Outcome: 51 construction workers killed
The Willow Island disaster was the collapse of a cooling tower under construction at the Pleasants Power Station at Willow Island, West Virginia, on April 27, 1978. 51 construction workers were killed. It is thought to be the deadliest construction accident in U.S. history.[3]
Background
Pleasants Power Plant with its two cooling towers shown here in 2015.
During the 1970s, many coal-powered power plants were being built in the valley along the Ohio River. The Allegheny Power System was building another, larger plant at Willow Island, which would have two electric generators with a total capacity of 1,300 megawatts. This was in addition to the two smaller units that were already installed there.
By April 1978, one natural draft cooling tower had been built, and a second was under construction. One of the contractors, New Jersey-based Research-Cottrell, was well known for constructing such towers around the country.
The usual method of scaffold construction has the base of the scaffold built on the ground, with the top being built higher to keep up with the height of the tower. The scaffolding on the Willow Island cooling tower was bolted to the structure it was being used to build. A layer of concrete was poured; then, after the concrete forms were removed, the scaffolding was raised and bolted onto the new section. Cranes atop the scaffolding raised buckets of concrete. One 5-foot (1.5 m) lift of concrete was poured each day.
Collapse
On April 27, 1978, tower number 2 had reached a height of 166 feet (51 m). Just after 10:00 a.m., the previous day's concrete started to collapse under the weight of the scaffolding and the construction workers on it. Concrete and scaffolding began to unwrap from the top of the tower, first peeling counter-clockwise, then in both directions. A jumble of concrete, wooden forms, metal scaffolding, and construction workers fell into the hollow center of the tower. All fifty-one construction workers on the scaffold fell to their deaths.
Immediately following the collapse, other construction workers onsite began digging for their coworkers. Fire departments from Belmont, Parkersburg, Vienna, and St. Marys in West Virginia, and Marietta in Ohio, were called in. Ambulances from Parkersburg and Marietta hospitals were also dispatched. The Volunteer Fire Department in Belmont was turned into a temporary morgue. Many of the men could be identified only by the contents of their pockets. All but one worker were identified by co-workers.
Investigation
The Occupational Safety and Health Administration (OSHA) investigation team arrived at the site the day of the accident. A team from the National Bureau of Standards (now called the National Institute of Standards and Technology) arrived two days later.
A number of safety lapses caused the collapse:
• Scaffolding was attached to concrete that had not been given time to sufficiently cure.
• Bolts were missing, and the existing bolts were of insufficient grade. (See Bolted joint)
• There was only one access ladder, thereby resulting in an escape restriction.
• An elaborate concrete hoisting system had been modified without proper engineering review.
• Contractors were rushing the construction.
On June 8, 1978, OSHA cited Willow Island contractors for 20 violations, including failures to field test concrete and anchor the scaffold system properly. The cases were settled for $85,500, or about $1,700 per worker killed. OSHA referred the case to the United States Department of Justice for criminal investigation. A grand jury was convened, but no charges were filed.
{snip}
References
[3] Ward, Jr., Ken (April 27, 2008). "'It was gone': String of problems led to 51 deaths at Willow Island". The Charleston Gazette. Archived from the original on May 1, 2008. Retrieved April 10, 2013.
https://web.archive.org/web/20080501181924/http://wvgazette.com/News/WillowIsland/200804250422
{snip}
Thu Oct 10, 2024: A West Virginia community is counting on a 'miracle' to keep their power plant open. But questions remain.
1 replies
= new reply since forum marked as read
= new reply since forum marked as read
45 Years Ago, the Deadliest Construction Accident in U.S. Killed 51
April 27, 2023 by William Rabb
It was 45 years ago today that a huge scaffold system collapsed inside a cooling tower under construction at a West Virginia power plant, sending 51 workers tumbling to their deaths 170 feet below.
Eleven members of one family were among the victims in the collapse, according to news reports at the time. None of the workers on the scaffold survived.
It’s been known as the worst and deadliest construction accident in U.S. history. Multiple lawsuits, workers’ compensation claims and liability settlements followed. The incident also led to fines against the contractors involved and resulted in significant changes in the way cooling towers are built and how projects are inspected by federal regulators.
“There were redundant features here that, if they had corrected them, this wouldn’t have happened,” Stan Elliott, who was the area director for the U.S. Occupational Safety and Health Administration, told the Charleston, West Virginia, newspaper in 2008. “If they had put the bolts in, it probably wouldn’t have happened. If they had let the concrete cure, it probably wouldn’t have happened.”
The Pleasants Power station at Willow Island, West Virginia, on Aug. 7, 1978. (AP Photo/File)
“But when you put all of these things together all on the same day at the same time, this is what happened,” he added.
{snip}
April 27, 2023 by William Rabb
It was 45 years ago today that a huge scaffold system collapsed inside a cooling tower under construction at a West Virginia power plant, sending 51 workers tumbling to their deaths 170 feet below.
Eleven members of one family were among the victims in the collapse, according to news reports at the time. None of the workers on the scaffold survived.
It’s been known as the worst and deadliest construction accident in U.S. history. Multiple lawsuits, workers’ compensation claims and liability settlements followed. The incident also led to fines against the contractors involved and resulted in significant changes in the way cooling towers are built and how projects are inspected by federal regulators.
“There were redundant features here that, if they had corrected them, this wouldn’t have happened,” Stan Elliott, who was the area director for the U.S. Occupational Safety and Health Administration, told the Charleston, West Virginia, newspaper in 2008. “If they had put the bolts in, it probably wouldn’t have happened. If they had let the concrete cure, it probably wouldn’t have happened.”
The Pleasants Power station at Willow Island, West Virginia, on Aug. 7, 1978. (AP Photo/File)
“But when you put all of these things together all on the same day at the same time, this is what happened,” he added.
{snip}