Item title reads - New bridges for old! Old Southern Railway wooden swing bridge - connecting inner and outer harbours, replaced by steel one - in 48 hours! Folkestone, Kent.

L/S of a steam train passing along the old wooden bridge, various shots of men using a two handled saw to cut through sections of the bridge. M/S as they are lifted up by crane. M/S of men dismantling the bridge. M/S of a man welding the new steel one. M/S as part is lifted up and other bits removed. Various shots as an army of men work on it, bits splash into the water. M/S as men turn handles which work cogs and pull rope. M/S as the train drives over the new bridge.

Note: the story finishes at 01:24:02, it is then repeated straight afterwards.