RR820 - Tower crane incidents worldwide - HSE

6 CONCLUSIONS
6.1 A total of 86 incidents involving the collapse or major structural damage of the tower
crane involved have been identified as taking place between 1989 and 2009.
6.2 The cause or circumstances surrounding 57 of these incidents have been identified. The
cause or circumstances surrounding 28 incidents have not been identified.
6.3 Where the cause or circumstances surrounding the incident have been identified the
dominant categories were erection/dismantling/climbing followed by extreme weather.
6.4 10 of the 86 incidents took place in the U.K. The causes of these were similarly
dominated by erection/dismantling/climbing and extreme weather.
6.5 No particular crane manufacturer has been positively identified as being more prone to
incidents than any other.
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