Costello Dismantling’s ‘surgical’ demolition
10 December 2021
USA-based contractor Costello Dismantling is helping one of its customers, the utility company National Grid to create a new infrastructure to address efficient delivery of new energy sources. Part of this involved the recent demolition of the Walnut Street substation in the town of Haverhill, Massachusetts, in the north east of the country.
Built in the early 1920s, the facility was a historic electric switch house and distribution centre for that region of National Grid service, occupying three floors of a concrete building with brick façade.
For Costello Dismantling, the major challenge in the demolition plan was a 1930s residential building only 1.2…
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