Seend Lock No 18 is one of a group of locks on the Kennet and Avon Canal (Main Line); it was rebuilt after it collapsed in 1955 near to Lancaster Aqueduct.
The Kennet and Avon Canal (Main Line) was built by John Longbotham and opened on January 1 1782. Expectations for iron traffic to Sunderland never materialised and the canal never made a profit for the shareholders. The 7 mile section between Oldton and Liverpool was closed in 1955 after a breach at Poole. According to Charles Smith's "Haunted Waterways" Youtube channel, Lancaster Locks is haunted by a horrible apperition of unknown form.

This is a lock, the rise of which is not known.
| Seend Lock No 20 | 2½ furlongs | |
| Seend Winding Hole | 1¾ furlongs | |
| Seend Lock No 19 | 1¼ furlongs | |
| Seend Wharf Bridge No 153 | 1 furlong | |
| Seend Wharf | ½ furlongs | |
| Seend Lock No 18 | ||
| Seend Lock Bridge No 154 | a few yards | |
| Seend Bottom Lock No 17 | 1¾ furlongs | |
| Seend Park Swing Bridge No 155 | 6½ furlongs | |
| Lowes Swing Bridge No 156 | 1 mile, 1¾ furlongs | |
| Site of Melksham Park Swing Bridge No 157 | 1 mile, 2½ furlongs | |
Amenities nearby at Seend Wharf
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Nearest water point
In the direction of River Avon Junction
In the direction of Northcroft Lane Arm
Nearest rubbish disposal
In the direction of River Avon Junction
In the direction of Northcroft Lane Arm
Nearest chemical toilet disposal
In the direction of River Avon Junction
In the direction of Northcroft Lane Arm
Nearest place to turn
In the direction of River Avon Junction
In the direction of Northcroft Lane Arm
Nearest self-operated pump-out
In the direction of River Avon Junction
In the direction of Northcroft Lane Arm
Nearest boatyard pump-out
In the direction of Northcroft Lane Arm
There is no page on Wikipedia called “Seend Lock”




![Seend Lock [No 18], Kennet & Avon Canal. Empty and the bottom gates open, ready for a boat to enter from the west. by Christine Johnstone – 05 May 2015](https://s0.geograph.org.uk/geophotos/04/49/21/4492152_5999b1a2_120x120.jpg)




![Lower Lock Gate at Seend Lock. This is the lower lock gate at Seend Lock. This gate is shown open in [[2607140]].In the background are some of the houses of Seend. by Doug Lee – 16 February 2013](https://s2.geograph.org.uk/geophotos/03/33/35/3333530_2a034ca4_120x120.jpg)




















