Thomas Peirson Frank

Sir Peirson Frank
Born	1881 Kirkbymoorside, North Yorkshire
Died	1951
Nationality	British
Engineering career
Discipline	Civil
Institutions	Institution of Civil Engineers (president)
Projects	Waterloo Bridge; Wandsworth Bridge; Putney Bridge

Sir Thomas Peirson Frank (1881–1951) was a British civil engineer and surveyor. He is particularly remembered as 'the man who saved London from drowning'.

Frank was born in 1881 at Kirkbymoorside in North Yorkshire. He was elected to the Smeatonian Society of Civil Engineers in 1937 and was president of the Royal Town Planning Institute in 1944. He was elected president of the Institution of Civil Engineers for the November 1945 to November 1946 session.

Frank was chief engineer of the London County Council from 1931-1946 and coordinating officer for Road Repairs and Public Utility Services during the period 1939-1945. He was knighted in 1942 for his direction of the repair services that enabled London to carry on in spite of the severest air raids. He is credited with having organised and put to action "rapid response" teams who repaired upwards of a hundred breaches in the Thames wall, thus preventing low-lying areas of London from being flooded, an achievement that, for reasons of protecting "the public's morale," was kept secret during the war.

On 29 October 2014 a commemorative green plaque, funded by the Institution of Civil Engineers, was unveiled by the Lord Mayor of Westminster in his memory. It is located on a section of the Thames embankment wall, close to the Houses of Parliament, one of the most important locations where Frank organised repairs to bomb damage.

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