No one was injured, but vehicles outbound on Indra Road had to be held back, resulting in a two-kilometre traffic jam as dawn approached.
Khanna Yao police superintendent Pol Colonel Singh Singhadech said the six-storey crane was lifted away and traffic flow had resumed to normal by 5.30am.
It’s believed the crane was attempting to move a too-heavy load of metal pipes 15 metres long and 1.5-metre in radius.
Its support cables snapped and the crane capsized.
Police said the Metropolitan Electricity Authority would assess the damage.