Bingley Five Rise Locks
In effect the five-rise consists of five locks connected together without intermediate "ponds": the lower gate of each chamber forms the upper gate of the chamber below. There are therefore five chambers, and six gates. As the Leeds Liverpool canal is a wide canal, the chambers are slightly more than 14 feet (4.3 m) wide, and each gate consists of two half-gates, "hinged" from opposite sides of the canal. Each half gate is slightly more than 7 feet (2.1 m) wide, so that the two halves close in a "V" shape (pointing "upstream"). Water pressure on the uphill side of the gate keeps it tightly closed until the water levels on either side are equal, when the gate can be opened and the boat moved to the next chamber (see canal locks for more information on how a lock is constructed and operated).
The five-rise is the steepest flight of locks in the UK, with a gradient of about 1:5 (a rise of 59 ft 2 in (18.03 m) over a distance of 320 ft (98 m)). The intermediate and bottom gates are the tallest in the country. Because of the complications of working a staircase lock, and because so many boaters (both first-time hirers and new owners) are inexperienced, a full-time lock keeper is employed, and the locks are padlocked out of hours. Barry Whitelock, the lock keeper, after twenty years based here is now almost synonymous with the flight. Barry was awarded an MBE in the 2006 New Year Honours List for "Services to Inland Waterways in the North". The Locks also have an overflow waterfall at the side, which water runs down when the lock is not open. When descending boat enters each lock chamber, the water level rises slightly and the excess overflows via a channel at the side of each lock which runs into the main overflow.
The five-rise opened on 21 March 1774 and was a major feat of engineering at the time. When the locks and therefore the canal from Gargrave to Thackley was opened in 1774 a crowd of 30,000 people turned out to celebrate. The first boat to use the locks took just 28 minutes. The first trip was described in the Leeds Intelligencer. The smaller Bingley three-Rise opened at the same time just a few hundred yards downstream.
The staircase is a major tourist attraction in the area. Most boats that pass through attract a lot of attention especially at weekends where there may be a crowd of thirty people or more watching a boat go up or down.
The staircase underwent extensive restorative maintenance in 2004, and again in 2006 when the lock gates and paddles were replaced. As is expected with such a feat of engineering it requires a lot of maintenance and is often on British Waterways' list of winter stoppages for maintenance.
- Foxton Locks near Market Harborough, Leicestershire
- Watford Locks in Northamptonshire
- Caen Hill Locks near Devizes, Wiltshire
- Fourteen Locks near Newport, South Wales
- Tardebigge Locks near Bromsgrove, Worcestershire
- "'Dream job' lock-keeper gets MBE". Yorkshire Post. Europe Intelligence Wire. 30 December 2006. Retrieved 25 September 2012.
- Historic England. "Grade I (337964)". Images of England.
- Leeds Intelligencer
- The Leeds & Liverp[ool Canal (Clarke)
- "Around Bingley - Five Rise Locks and the Canal". Bingley.org.uk. Retrieved 25 September 2012.
- "Rare glimpse of drained 18th Century Bingley Five Rise Locks". BBC News. 30 January 2012. Retrieved 30 January 2012.
|Wikimedia Commons has media related to Five Rise Locks, Bingley.|
- Skipton Web: Five Rise Locks
- Pennine Waterways
- BBC Online - Rare glimpse of drained 18th Century Bingley Five Rise Locks during gate maintenance January 2012