Winding hole just below lock.

Next to the lock there appears to be another lock, it isn't, just the overflow system. I guess the space was there for when the canal was to be widened.

Photograph taken by Nic Chilton on 13 September 2007 and was added to the database on Monday the 12th of November, 2007

This photo is of Boxmoor Bottom Lock Winding Hole on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford)