A Change of mind

The bridgeman arrived to open the bridge. Liz and I noticed the tug and hurried up. The bridgeman waited until we were well clear of the bridge, rang the bells and dropped the barriers. The tug had reached the bridge by this time and the skipper did a smart 'U' turn. We waited, expecting him to turn again and continue towards Liverpool. Nothing more was seen of the tug, and the bridge was returned to its road traffic position.