File:Clarendon Arch, Bush Hill, London N21 - Geograph.org.uk - 302359.jpg
Originally the brook was spanned by a bridge and the Bush Hill Frame. This Frame was constructed between 1608 and 1613.
In 1682 the bridge was replaced by an arch named after the then Governor of the New River Company, the Earl of Clarendon. This was commemorated by a carved ornamental keystone with an inscription.
The arch was again rebuilt in 1725 and is now a statutory listed Grade II structure.
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