Canal and railway bridges A lock can just be seen through the bridge. Alongside the canal runs a track and a railway. Railways and canals often run together as they have similar needs for modest inclines. 2002-03-29T10:19 image image/jpeg 020329-1019-020 Kennet and Avon canal Nikon CoolPix 995 Zoom Nikkor 8-32mm 1:2.6-5.1 daylight Typical rural canal features, with bridge, lock, railway alongside and narrow country lane.