Isambard Kingdom Brunel to produce a solution. Brunel was working on the "Great Eastern" amongst other projects, but accepted the task in February 1855 of designing and building the War Office requirement of a temporary, pre-fabricated hospital that could be shipped to Crimea and erected there. In 5 months the team he had assembled designed, built, and shipped pre-fabricated wood and canvas buildings, providing them complete with advice on transportation and positioning of the facilities. Brunel had been working with Gloucester Docks-based William Eassie on the launching stage for the "Great Eastern"; Eassie had designed and built wooden prefabricated huts used in both
Marc Isambard Brunel later. Another problem that hindered Brunel was that William Smith, the chairman of the company, thought that the tunnelling shield was an unnecessary luxury, and that the tunnel could be made more cheaply by traditional methods. He wanted Brunel replaced as Chief Engineer and constantly tried to undermine his position. Fortunately the shield quickly proved its worth. During the tunnelling both Brunel and his assistant engineer suffered ill health and for a while Isambard had to bear the whole burden of the work. There were several instances of flooding at the tunnel face due to its nearness to the bed