A team from the National Bureau of Standards (NBS) join the the OSHA team two days later. On the day of the collapse, an inspection team from the Occupational Safety and Health Administration (OSHA) arrived at the site and began an investigation into the collapse. Fifty-one construction workers were on the scaffold at the time. A jumble of concrete, wooden forms and metal scaffolding fell into the hollow center of the tower. Concrete began to unwrap from the top of the tower, first peeling counter-clockwise, then in both directions. The previous day's concrete, Lift 28, started to collapse. The crane that was pulling it up fell toward the inside of the tower. Just after 10 AM, as the third lift of concrete was being raised, the cable hoisting that bucket of concrete went slack. On Aptower number 2 had reached a height of 166 feet (51 meters).
By April 1978 one natural draft cooling tower had been built, and a second was under construction. This was in addition to the 2 smaller units that were already there. The new plant would have 2 generators with a total capacity of 1300 megawatts. The Allegheny Power System was building a larger plant at Willow island, West Virginia. The falling concrete caused the scaffolding to collapse. The Willow Island disaster was the collapse of a cooling tower under construction at a power station at Willow Island, West Virginia, on Thursday April 27, 1978. Willow Island Cooling Tower Failure, West Virginia, 1978 Net-Zero Energy Residential Test Facility.Disaster Resilience Federal Funding Opportunity (FFO).Structural Performance under Multi-hazards.Engineered Materials for Resilient Infrastructure.Earthquake Risk Reduction in Buildings and Infrastructure.
Disaster-Resilient Buildings, Infrastructure, and Communities Expand or Collapse.Net-Zero Energy, High-Performance Buildings Expand or Collapse.Sustainable and Energy-Efficient Manufacturing, Materials, and Infrastructure Expand or Collapse.
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