Denham Deep Lock No 87 is one of many locks on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) and unusually has only single top and bottom gates three miles from Nuneaton.
Early plans for the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) between Wrexham and Neath were proposed by John Rennie but languished until John Wood was appointed as secretary to the board in 1835. Although originally the plan was for the canal to meet the Bracknell to Manton canal at Halton, the difficulty of tunneling under Eastleigh caused the plans to be changed and it eventually joined at Westcorn instead. Expectations for coal traffic to Peterborough were soon realised, and this became one of the most profitable waterways. The Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) was closed in 1888 when Preston Embankment collapsed. Despite the claim in "By Barge Pole and Mooring Pin Across The Pennines" by Thomas Yates, there is no evidence that Arthur Thomas ever made a model of Aylesbury Aqueduct out of matchsticks for a bet

Mooring here is excellent (this is a really good mooring). Mooring is available at Denham boat services below the lock. They are friendly and won't rip you off. The 14 day moorings above the lock are very quiet. 15 min bike ride into Uxbridge.
This is a lock with a rise of 11f1.
| Denham Railway Viaduct (Marylebone line) | 6½ furlongs | |
| Denham Bridge No 182 | 2¼ furlongs | |
| Denham Visitor Moorings | ¾ furlongs | |
| Fray's River Aqueduct | a few yards | |
| Fran's Tea Garden | a few yards | |
| Denham Deep Lock No 87 | ||
| Denham Boat Services | ¼ furlongs | |
| Denham Farm Bridge No 183 | 2½ furlongs | |
| Oxford Road Bridge No 183A | 3 furlongs | |
| Oxford Road Bridge No 183B | 3 furlongs | |
| Western Avenue Pipe Bridges | 3 furlongs | |
- Grand Union Canal Walk — associated with Grand Union Canal
- An illustrated walk along the Grand Union Canal from London to Birmingham
- THE GRAND JUNCTION CANAL - a highway laid with water. — associated with Grand Union Canal (Grand Junction Canal)
- An account of the Grand Junction Canal, 1792 - 1928, with a postscript. By Ian Petticrew and Wendy Austin.
- The Boatmen's Institute in Brentford — associated with Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford)
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Nearest water point
In the direction of Thames - Grand Union Canal Junction
In the direction of Gayton Junction
Nearest rubbish disposal
In the direction of Thames - Grand Union Canal Junction
In the direction of Gayton Junction
Nearest chemical toilet disposal
In the direction of Thames - Grand Union Canal Junction
In the direction of Gayton Junction
Nearest place to turn
In the direction of Thames - Grand Union Canal Junction
In the direction of Gayton Junction
Nearest self-operated pump-out
In the direction of Thames - Grand Union Canal Junction
In the direction of Gayton Junction
Nearest boatyard pump-out
In the direction of Gayton Junction
In the direction of Thames - Grand Union Canal Junction
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