Harlam Hill Lock No 1
Address is taken from a point 523 yards away.
Harlam Hill Lock No 1 is one of a long flight of locks on the River Ancholme (Main River); it has a rise of only a few inches near to Sunderland Locks.
Early plans for the River Ancholme (Main River) between Plymouth and Manchester were proposed by George Clarke but languished until Barry Yates was appointed as surveyor in 1888. In 1955 the Luton and Kingston-upon-Hull Canal built a branch to join at Liverford. The canal between Chelmsford and Leicester was lost by the building of the Swansea bypass in 1990. According to Edward Thomas's "Haunted Waterways" Youtube channel, Rochester Aqueduct is haunted by a horrible apperition of unknown form.
The River Ancholme (unnavigable section) was built by Thomas Clarke and opened on 17 September 1816. The canal was restored to navigation and reopened in 1990 after a restoration campaign lead by the River Ancholme (unnavigable section) Trust.

There is a bridge here which takes pedestrian traffic over the canal.
This is a lock, the rise of which is not known.
| River Ancholme (Main River) | ||
|---|---|---|
| North Kelsey Landing | 4 miles, 1½ furlongs | |
| Redbourne Old River | 4 miles, ¼ furlongs | |
| Caistor - Ancholme Junction | 2 miles, 7¾ furlongs | |
| Brandy Wharf Bridge | 1 mile, 5½ furlongs | |
| Snitterby Bridge | 2½ furlongs | |
| Harlam Hill Lock Weir Exit | 1½ furlongs | |
| Harlam Hill Lock No 1 | ||
| River Ancholme (unnavigable section) | ||
| Harlam Hill Lock No 1 | ||
| Harlam Hill Lock Weir Entrance | ½ furlongs | |
| Atterby Landing | 2½ furlongs | |
| Owersby Landing | 6½ furlongs | |
| Winding Hole below Bishopbridge | 2 miles | |
| Bishopbridge Weir | 2 miles, 2½ furlongs | |
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In the direction of Humber - Ancholme Junction
In the direction of Bishopbridge Weir
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![Harlam Hill Lock on the New River Ancholme. For map of the river and details see: http://www.gov.uk/government/uploads/system/uploads/attachment_data/file/289826/gean0911budk-e-e.pdfHere, in November, the lockpit is empty and a sign on the bridge says the lock is closed.Harlam Hill Lock was designed by Sir John Rennie and built in 1827 at a cost of £2,027 as part of planned river improvements. It was formerly known as Snitterby Carr Lock and there was once a bridge there. An information board states that the present lock includes the original ground paddle casings. Ground paddles are covers over openings which let the water in and out. The two downstream pointing doors are unusual, being founded from light metal bars rather than the more traditional heavy wooden balance beams.For history of lock and local area see http://www.walkingbritain.co.uk/walks/walks/walk_b/2069/Sir John Rennie was John Rennie the Younger, and was responsible for the New River Ancholme Drainage System and for Horkstow (suspension) Bridge on the Ancholme - see [[SE9718]] and [[SE9719]]. His father, John Rennie the Elder, designed and had built the 19th century London Bridge, and his son Sir John was involved in the construction of the latter.http://nigelfishersbriggblog.blogspot.co.uk/2009/12/riverside-brigg-70-years-ago.html includes an irreverent account of the Rennies' work and a link to a book, Holmes of the Humber by Tony Watts (2009) containing a chapter with illustrations of the bridges of the Ancholme. Published by http://lodestarbooks.com/ by Chris – 29 November 2014](https://s1.geograph.org.uk/geophotos/04/26/22/4262253_46efd0dd_120x120.jpg)

![Watery weedbed at Harlam Hill Lock. The lockpit is empty and a sign says the lock is closed.For map of the river and details see: http://www.gov.uk/government/uploads/system/uploads/attachment_data/file/289826/gean0911budk-e-e.pdfHere, in November, the lockpit is empty and a sign on the bridge says the lock is closed.Harlam Hill Lock was designed by Sir John Rennie and built in 1827 at a cost of £2,027 as part of planned river improvements. It was formerly known as Snitterby Carr Lock and there was once a bridge there. An information board states that the present lock includes the original ground paddle casings. Ground paddles are covers over openings which let the water in and out. The two downstream pointing doors are unusual, being founded from light metal bars rather than the more traditional heavy wooden balance beams.For history of lock and local area see http://www.walkingbritain.co.uk/walks/walks/walk_b/2069/Sir John Rennie was John Rennie the Younger, and was responsible for the New River Ancholme Drainage System and for Horkstow (suspension) Bridge on the Ancholme - see [[SE9718]] and [[SE9719]]. His father, John Rennie the Elder, designed and had built the 19th century London Bridge, and his son Sir John was involved in the construction of the latter.http://nigelfishersbriggblog.blogspot.co.uk/2009/12/riverside-brigg-70-years-ago.html includes an irreverent account of the Rennies' work and a link to a book, Holmes of the Humber by Tony Watts (2009) containing a chapter with illustrations of the bridges of the Ancholme. Published by http://lodestarbooks.com/ by Chris – 29 November 2014](https://s3.geograph.org.uk/geophotos/04/26/22/4262271_2b841098_120x120.jpg)


![Harlam Lock and Brown's Bridge on the New River Ancholme (2): aerial 2015. See also [[[4420241]]] and [[[4420234]]]. by Chris – 05 April 2015](https://s0.geograph.org.uk/geophotos/04/42/02/4420232_5e66833c_120x120.jpg)
![Harlam Lock on the New River Ancholme: aerial 2015. See also [[[4420241]]] and [[[4420232]]]. by Chris – 05 April 2015](https://s2.geograph.org.uk/geophotos/04/42/02/4420234_d94abeba_120x120.jpg)















