A puzzle!

Now here’s a puzzle for you.  This photograph was taken in the 1960’s/1970’s and is somewhere between Runcorn Road, Moore and the Ship Canal, possibly in the area around the Lidl warehouse on Manor Park.  It looks like a mini ‘packhorse’ bridge and we think it crosses Keckwick Brook.  It is clearly an old bridge, but we can’t find it marked on any map.  If you know where it is, please let us know!  We’d love to find it!