The civil engineer who saved London
Sir Thomas Peirson Frank, an engineer who thanks to his work on the city’s flood defences was credited with saving London from drowning no fewer than 121 times, has had his valiant efforts commemorated by a plaque near London’s Houses of Parliament.
Peirson Frank co-ordinated repairs to roads and public services for London County Council during WWII. He established a secret rapid-response unit to deal with the destruction of London’s flood defences from the Luftwaffe’s intensive bombing raids. Recent fieldwork and research of unpublished reports, by archaeologists from the Thames Discovery Programme (TDP), have revealed the extent of the unit’s heroic efforts.
The respected civil engineer who later became President of the Institution of Civil Engineers (ICE), knew well the catastrophic consequences that a flood defence breach could have, potentially submerging low-lying areas of the capital, including the London Underground, where so many Londoners sought refuge during the Blitz.
ICE President Geoff French said: “While historic engineering greats like Brunel are frequently revered and well established in the engineering ‘hall of fame’, others like Sir Thomas Peirson Frank have remained unsung heroes. It was down to the ingenuity of this engineer that parts of our capital, including the main infrastructure network that supported it, survived the Blitz without being submerged. Needless to say the consequences could have been devastating. It is a truly fascinating story, and I am delighted that Sir Thomas’ feat has finally been discovered and acknowledged.”
As the prospect of war loomed, Peirson Frank set about making preparations: identifying the most vulnerable sites, introducing secondary flood defences, and setting up depots staffed by rapid-response teams, called the Thames Flood Prevention Emergency Repairs unit. Their endeavours were conducted in secret, so as not to alarm the public or alert the Luftwaffe to this soft target.
Research, supported by University College London, has explored unpublished records in the London Metropolitan Archives and revealed Peirson Frank’s detailed plans. Recent TDP fieldwork, to record the Thames riverwall, has exposed the devastation and extensive repair work covertly undertaken to protect the capital.
Gustav Milne, Thames Discovery Programme Director, said: “Last winter illustrated the danger posed by floods. It emphasises the Herculean efforts of Sir Thomas Peirson Frank’s highly successful rapid-response team, at the height of the bombing. It’s a real credit to the Thames Discovery Programme’s community team that they were able to unravel this forgotten story, since all news of their efforts was deliberately supressed at the time.”
A plaque supported by the Institution of Civil Engineers (ICE), situated in Victoria Tower Gardens, next to the Houses of Parliament, has been unveiled.
By Jake Frith
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