Locomotive Bridge....

....also known as Turnbridge,  was built over the Sir John Ramsden Canal to cope with the increased weight of traffic in 1865.  The bridge, made of iron girders with planking over the central section of the roadway has undergone many changes since its construction. These days it's lifted with the aid of an electric motor, but still exhibits distinctive counterweights bearing the date 1865. -  just about old enough for the MM challenge I hope, which is kindly hosted by TheAphid this month.

Thank you for the lovely response to my Woodpecker - it's very much appreciated.