Sapperton Tunnel. Daneway Portal.
2.17 miles long. Longest in the world at the time of construction and the widest for some considerable period.
Over 14ft wide and yet, just 3 bricks deep!
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#tunnel #portal #daneway #sapperton #cotswold #canal #canalhistory
#tunnel #portal #daneway #sapperton #cotswold #canal #canalhistory