Severn Railway Bridge
... that in 1960, two barges collided with the 4,162-foot (1,270 m) Severn Railway Bridge, causing two bridge spans to fall into the river?
... that in 1960, two barges collided with the <span about="#mwt50" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"4162"},"2":{"wt":"ft"},"3":{"wt":"m"},"4":{"wt":"-1"},"adj":{"wt":"on"}},"i":0}}]}' id="mwBBc" typeof="mw:Transclusion">4,162-foot (1,270</span><span about="#mwt50" typeof="mw:Entity"> </span><span about="#mwt50">m)</span> <b id="mwBBg"><a href="./Severn_Railway_Bridge" id="mwBBk" rel="mw:WikiLink" title="Severn Railway Bridge">Severn Railway Bridge</a></b>, causing two bridge spans to fall into the river?