Didcot collapse: investigators cannot say when inquiry will finish Investigators say they are still unable to put a timeframe on when their examination will be complete five years after the Didcot Power Station collapse. On 23 February 2016, Ken Cresswell, Chris Huxtable, John Shaw and Mick Collings died following the collapse of the boiler house at Didcot Power Station during demolition works being carried out by Coleman & Company. Thames Valley Police, which has been investigating the incident alongside the Health and Safety Executive (HSE), said it is “unable to put a timeframe” on the probe. The force also paid tribute to the victims in a statement. Deputy chief constable Jason Hogg said the officers’ “thoughts as always remain with the family and friends” of the men.