What caused Big Blue crane collapse?

Fred Flowers, an operator of the Big Blue crane when it crashed last July 14, said in his deposition that “ground failure,” or the sinking of one side of the crane’s tracks, was a key factor in the collapse .

What size crane was Big Blue?

The Big Blue was a Lampson LTL-1500 Transi-Lift heavy lift crawler crane that collapsed on July 14, 1999, killing three iron workers.

What is the major cause of crane accidents?

The most common cause of fatalities is workers or bystanders who are struck by an object that falls from the cranes. Other causes include being run over by a crane , falling from a crane , and electrocution. Below is a breakdown of crane accident fatalities by cause of death.

Who died in the crane accident?

June Harvey

What is the largest crane in the world?

Big Carl

What is the largest crane in the United States?

The largest crane on the ACT100 is Mammoet’s 5,000-ton capacity PTC 200 DS . Other heavy lift cranes on the ACT100 are the 3,000-ton capacity Lampson LTL-3000, the 2,535-ton capacity Manitowoc 31000 owned by Maxim and the 2,500-ton TC-36000 Versa Crane owned by Deep South Crane & Rigging.

Where is the blue crane found in South Africa?

Blue Cranes are endemic to southern Africa , mainly the southern and eastern parts of South Africa from the southern and eastern Mpumalanga Highveld through the Free State, KwaZulu-Natal and the Eastern Cape.

How tall is Big Blue?

233 feet tall

How are tower cranes anchored?

The triangulated cross-member structure of the mast gives it more stability and prevents bending. Plus, it’s anchored and bolted to the ground. In addition, massive concrete ballast blocks hang from the jib arm as counterweights. These have to be perfectly calculated.

What are the most common types of crane accidents?

OSHA’s analysis of crane accidents identified the major causes of crane accidents as: boom or crane contact with energized power lines (nearly 45% of the cases) under the hook lifting device. overturned cranes . dropped loads. boom collapse. crushing by the counter weight. outrigger use, falls and rigging failures.

How many people die a year from cranes?

According to the Bureau of Labor Statistics ‘ Census of Fatal Occupational Injuries, 79 fatal occupational injuries were related to cranes , derricks, hoists, and hoisting accessories in 1993. (2) OSHA’s analysis of crane accidents in general industry and construction identified an average of 71 fatalities each year .

How many crane operators die each year?

From 2011 to 2015, the Census of Fatal Occupational Injuries (CFOI) reported 220 total crane-related deaths, an average of 44 per year over this 5-year period.

Do cranes ever fall?

The fact is, though, that deadly crane crashes are far too common. Some of the largest crane collapses on record have the most devastating effects in big cities, such as a 2008 New York accident that killed seven people and destroyed buildings when a 200-foot-tall crane collapsed.