Rolling Bridge

According to the information panel this is the oldest surviving rolling bridge in the country. In the "old" days this was a railway bridge that would roll out of the way to allow a ship along the Ulverston Canal. The rollers are still there but the engine has gone.
See here https://youtu.be/AW2hD7eQ1vI
Blipped during a dusky walk along the canal while we waited for it to get dark so we could do some night orienteering. The Christmas lights were distracting, extra