David Hay (10 April 1859 – 30 October 1938) was a British civil engineer of the late 19th and early 20th centuries, particularly associated with design of bridges and tunnels.
With his business partner Basil Mott (in 1902, they formed a consulting engineering practice, Mott and Hay - later Mott, Hay and Anderson), Hay was involved with the design and construction of London's first deep level "tube" lines - the City and South London Railway (today part of the Northern line) and the Central London Railway (today forming the Central line between Shepherd's Bush and the City of London).[3] Mott and Hay were internationally recognised as authorities on underground railways, being invited to write a 1905 paper for the American Society of Civil Engineers.[6]
^"Underground Railways in Great Britain", Transactions of the American Society of Civil Engineers, Vol. LIV, No. 8, August 1905, pp. 325–348
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