Due to the
Second World War Muir Wood joined the
Royal Naval Volunteer Reserve (RNVR) as a commissioned officer on 5 October 1942. Muir Wood was promoted to Temporary Lieutenant (Engineers) on 1 August 1945, with seniority of 5 April 1945. After leaving the navy in 1946 Muir Wood worked for the
Southern Railway where he helped to design bridges and the remediation of landslips at Folkestone Warren, Kent. He then spent a period with the
Docks and Inland Waterways Executive where he designed and organised the hydraulics laboratory. Muir Wood was the second chairman of the
British Tunnelling Society and was founding president of the
International Tunneling Association in 1974 and served as honorary president until his death. He retired from Halcrow as the firm's senior partner on 1 May 1984 but continued to work as an expert witness and specialist consultant. He was closely involved with a campaign launched by
New Civil Engineer to rescue
Isambard Kingdom Brunel's
Thames Tunnel from a plan to shroud its lining with
sprayed concrete. He held a
Doctor of Laws degree from the
University of Dundee and an
Engineering Doctorate from
Bristol University where he was also a visiting professor. ==Awards==