Discover and read the best of Twitter Threads about #unioncanal
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1/ We think so too although there is also an old subway under the canal locally. Not quite as grand but quite unique & used to be the only way to get from Kingsknowe to Longstone. Still a route on google maps. @scottishcanals #unioncanal 
2/ Here's a vid of it being pumped out recently by CEC Parks team trying to find a drain cover at the origin of an old culvert carrying water from a old spring through Redhall Park. Note the weird piped outlet in the canal subway wall spewing water out as well. @scottishcanals
3/ When Redhall Park flooded last year it was because this culvert became blocked somewhere near the entrance to the park causing this fast flowing water to back up and spew out the manholes. @scottishcanals
