Tay Rail Bridge of Dundee "in respect of his meritorious services as engineer of the bridge. ..." On 20 June 1879, Queen Victoria crossed the bridge during her return south from staying at Balmoral; Bouch was presented to her before she did so. On 26 June 1879, he was knighted by the Queen at Windsor Castle. On the night of 28 December 1879 at 7.15 pm, the bridge collapsed after its central spans gave way during high winter gales. A train with six carriages carrying seventy-five passengers and crew, crossing at the time of the collapse, plunged into the icy waters of the
Tay Bridge disaster had a good view of most of the bridge from his house in Newport-on-Tay but other buildings blocked his view of the southern high girders. He had seen the train move onto the bridge; then in the northern high girders, before the train could have reached them, he saw "two columns of spray illuminated with the light, first one flash and then another" and could no longer see the lights on the bridge – the only inference he could draw was that the lit "columns" of spray – slanting from north to south at about 75 degrees – were areas