Accident Report Detail
Accident Summary Nr: 201507415 - Employee Is Injured When Cranes Tip Over
| Inspection Nr | Date Opened | SIC | NAICS | Establishment Name |
|---|---|---|---|---|
| 310057831 | 02/23/2007 | 1611 | 237310 | Mcm Construction, Inc |
Abstract: On February 23, 2007, Employee #1 was part of a crew that was attempting a double crane lift of a Bent-5 rebar column. Both cranes were hooked to the rebar column during the lift. As the flexible rebar cage was lifted, the Manitowoc Model Number 4100W signalman attempted to relieve the side loading of the Manitowoc 4100 by crawling the Link-Belt Model Number LS-338 crane forward. As the column was being raised into a vertical position, the bottom of the rebar column touched the ground. As it touched the ground, the flexible rebar cage bowed outward and away from the cranes, increasing the radius of the load. In response, the signalman for the LS-338 instructed the operator of the LS-338 crane to lower the hook, while at the same time, the Manitowoc 4100W signalman instructed the operator of the Manitowoc 4100W to raise the load. As the load cleared the ground, it swung approximately 20 feet away from the LS-338 crane, due to the existing side load, increasing the load radius yet again. The momentum of 86,000 pounds of rebar and rigging, swinging away from both cranes, exceeded the safe working load of both cranes, causing both cranes to overturn. Employee #1 sustained bruises and abrasions and was hospitalized.
| End Use | Project Type | Project Cost | Stories | Non-building Height | Fatality | ||
|---|---|---|---|---|---|---|---|
| Highway, road, street | New project or new addition | $5,000,000 to $20,000,000 | 6 | ||||
| Employee # | Inspection Nr | Age | Sex | Degree of Injury | Nature of Injury | Occupation | Construction |
|---|---|---|---|---|---|---|---|
| 1 | 310057831 | Hospitalized injury | Bruise/Contus/Abras | Occupation not reported | Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Emplacing reinforcing steel Fatality Cause: Crushed/run-over/trapped of operator by operating |
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