Denham Railway Viaduct (Marylebone line) 
Address is taken from a point 477 yards away.
Denham Railway Viaduct (Marylebone line) carries the M56 motorway over the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford).
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 ok (a perfectly adequate mooring).
There is a bridge here which takes a railway over the canal.
| Widewater Lock No 86 | 5¾ furlongs | |
| Moorhall Road Bridge No 180 | 5¾ furlongs | |
| The River Garden | 5½ furlongs | |
| Harefield Marina | 4½ furlongs | |
| Colne Valley HS2 Viaduct (proposed) | 3 furlongs | |
| Denham Railway Viaduct (Marylebone line) | ||
| Denham Bridge No 182 | 4¼ furlongs | |
| Denham Visitor Moorings | 5¾ furlongs | |
| Fray's River Aqueduct | 6¼ furlongs | |
| Fran's Tea Garden | 6½ furlongs | |
| Denham Deep Lock No 87 | 6½ furlongs | |
Amenities here
- 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)
Mouseover for more information or show routes to facility
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 Gayton Junction
In the direction of Thames - Grand Union Canal 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 Gayton Junction
In the direction of Thames - Grand Union Canal 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
There is no page on Wikipedia called “Denham Railway Viaduct”














![Grand Union Canal near Denham. This was an attempt to repeat Shaun's [[850068]] from the same viewpoint but at more or less the diametrically opposite time of the year. by Nigel Cox – 31 December 2008](https://s3.geograph.org.uk/geophotos/01/11/01/1110147_2f522ba8_120x120.jpg)





![Pylon being removed for HS2 construction, Denham. View from Grand Union Canal towpath. The power lines from this pylon would be too near above the HS2 viaduct, so it is being removed and the power line rerouted. One disconnected cable is hanging loose, and a security guard in Hi-viz clothing is near the pylon. See [[7169701]] for this area after pylon removal and ground has been restored with planting. by David Hawgood – 16 August 2021](https://s1.geograph.org.uk/geophotos/07/17/00/7170093_4090928c_120x120.jpg)

![Planting after pylon removal for HS2 viaduct, Denham. Shrubs and trees have been planted where the pylon stood. The power line had to be rerouted because it would have been too close above the HS2 viaduct. For the same view with pylon, see [[5560276]] and [[7170093]]. by David Hawgood – 09 May 2022](https://s1.geograph.org.uk/geophotos/07/16/97/7169701_4bc329cd_120x120.jpg)







