Cromford Canal (broad gauge, un-navigable)

The exact dimensions of the largest boat that can travel on the waterway are not known. The maximum headroom is not known. The maximum draught is not known.
It has a junction with the Cromford Canal Pinxton Branch at Ironville Junction.
The broad gauge runs from Great Northern Basin (Langley Mill) to the eastern end of Butterley tunnel with fourteen broad locks.
This waterway is excluded by default from route planning with the following explanation: "no reason given"
Relevant publications — Waterway Maps:
| Butterley Tunnel (eastern entrance) | |||
| Golden Valley Bridge | ¾ furlongs | 0 locks | |
| Ironville Junction Junction with Pinxton Branch |
7 furlongs | 0 locks | |
| Codnor Park Lock No 1 | 7 furlongs | 0 locks | |
| Codnor Park Lock No 2 | 1 mile | 1 lock | |
| Cinder Bank Road Bridge | 1 mile and ¼ furlongs | 2 locks | |
| Codnor Park Lock No 3 | 1 mile and ¾ furlongs | 2 locks | |
| Adelaide Walk Bridge | 1 mile and ¾ furlongs | 3 locks | |
| Codnor Park Lock No 4 | 1 mile and 1½ furlongs | 3 locks | |
| Erewash Valley Line Railway Bridge | 1 mile and 2 furlongs | 4 locks | |
| Codnor Park Lock No 5 | 1 mile and 2 furlongs | 4 locks | |
| Codnor Park Lock No 6 | 1 mile and 3 furlongs | 5 locks | |
| Codnor Park Lock No 7 | 1 mile and 3½ furlongs | 6 locks | |
| Portland Basin (Cromford Canal) | 1 mile and 4½ furlongs | 7 locks | |
| Butterley Co Lock No 8 | 2 miles and ¾ furlongs | 7 locks | |
| Stoneyford Lane Lock No 9 | 2 miles and 4½ furlongs | 8 locks | |
| Boat Lane Bridge (Cromford Canal) | 2 miles and 5¼ furlongs | 9 locks | |
| Stoneyford Deep Lock No 10 | 2 miles and 6¾ furlongs | 9 locks | |
| Stoneyford Shallow Lock No 11 | 2 miles and 7½ furlongs | 10 locks | |
| Erewash Aqueduct | 3 miles and ½ furlongs | 11 locks | |
| Vicker's Lock No 12 | 3 miles and 3½ furlongs | 11 locks | |
| Stoney Lane Bridge (Cromford Canal) | 3 miles and 4 furlongs | 12 locks | |
| A610 Bridge | 3 miles and 7½ furlongs | 12 locks | |
| Beggarlee Staircase Locks | 4 miles and ¼ furlongs | 12 locks | |
| Langley Mill Boatyard Moorings Limit of Navigation |
4 miles and ¾ furlongs | 14 locks |
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Wikipedia has a page about Cromford Canal
The Cromford Canal ran 14.5 miles (23.3 kilometres) from Cromford to the Erewash Canal in Derbyshire, England with a branch to Pinxton. Built by William Jessop with the assistance of Benjamin Outram, its alignment included four tunnels and 14 locks.
From Cromford it ran south following the 275-foot (84 m) contour line along the east side of the valley of the Derwent to Ambergate, where it turned eastwards along the Amber valley. It turned sharply to cross the valley, crossing the river and the Ambergate to Nottingham road, by means of an aqueduct at Bullbridge, before turning towards Ripley. From there the Butterley Tunnel took it through to the Erewash Valley.
From the tunnel it continued to Ironville, the junction for the branch to Pinxton, and then descended through fourteen locks to meet the Erewash Canal at Langley Mill. The Pinxton Branch became important as a route for Nottinghamshire coal, via the Erewash, to the River Trent and Leicester and was a terminus of the Mansfield and Pinxton Railway.
A 6-mile (9.7 km) long section of the Cromford canal between Cromford and Ambergate is listed as a Biological Site of Special Scientific Interest (SSSI) and a Local Nature Reserve.
In addition to purely canal traffic, there was a lively freight interchange with the Cromford and High Peak Railway, which traversed the plateau of the Peak District from Whaley Bridge in the north west, and which descended to the canal at High Peak Junction by means of an inclined plane.
