 In January 1829, Gooch became Resident Engineer for the Liverpool end of the L&MR, but in April the same year he took a temporary appointment as Resident Engineer of the Bolton and Leigh Railway.In 1830, Stephenson was appointed to survey the route of the proposed Manchester and Leeds Railway, and Gooch was appointed his assistant.Gooch carried out most of the actual surveying for the new line, and was in charge of the construction.