Spectacular Richborough Power Station demolition Four towers which marked the Kent skyline for over 50 years have been brought crashing back to the ground in a spectacular planned demolition. Three cooling towers and a chimney of the Richborough Power Station near Sandwich were brought down using explosives in a fall which took just 20 seconds from initial detonation. The cooling towers measured almost 100 metres high, whilst the chimney stood slightly higher at 130 metres. The buildings were destroyed to make way for a new green energy park being developed at the site.