I am Linda and along with my husband Richard and our dog Muffin we enjoy our summers on the UK's canal system

Sunday 29 August 2010

Saturday 28th August

Richard was a bit disappointed this morning as the voltage was back down to what it what it was using the bit inverter. However we did watch quite a bit of TV last night and we had stopped early so we see how tonight goes. Richard decided to cycle back to the lock that was damaged yesterday so measure it – he reckons that Reed Warbler must be a lot wider than Arthur thinks it is! I walked into town to do a bit of shopping – I do like Devizes. We had an early lunch and then set off. We had hoped to get to All Cannings today but Richard found a lovely spot just before there and we tied up. Millie loved it and brought us a mouse for dessert! As there isn’t much to report on today I thought I would give you a few facts about Caen Hill Flight. I was really surprised and interested to learn that Lock 41 is the narrowest on the canal – guess which one we got stuck in??! I’ve also included some more photos of the locks from both our trips - down and up.

The 29 locks have a rise of 237 feet in 2 miles or a 1 in 44 gradient. The locks come in three groups. The lower seven locks, Foxhangers Wharf Lock to Foxhangers Bridge Lock, are spread over 1.2 km. The next sixteen locks form a steep flight in a straight line up the hillside. Because of the steepness of the terrain, the pounds between these locks are very short. As a result, 15 locks have unusually large sideways-extended pounds to store the water needed to operate them. A final six locks take the canal into Devizes. This flight of locks was engineer John Rennie's solution to climbing the very steep hill, and was the last part of the 87 mile route of the canal to be completed. Whilst the locks were under construction a tramroad provided a link between the canal at Foxhangers to Devizes, the remains of which can be seen in the towpath arches in the road bridges over the canal. A brickyard was dug to the south of the workings to manufacture the bricks for the lock chambers and this remained in commercial use until the middle of the 20th century. Because a large volume of water is needed for the locks to operate, a back pump was installed at Foxhangers in 1996 capable of returning 32 million litres of water per day to the top of the flight, which is equivalent to one lockful every eleven minutes. In the early 19th century, 1829–43, the flight was lit by gas lights. The locks take 5–6 hours to travel in a boat and lock 41 is the narrowest on the canal. After the coming of the railways, the canal fell into disuse and was closed. The last cargo through the flight was a consignment of grain conveyed from Avonmouth to Newbury in October 1948. From the 1960s there was a major clearing and rebuilding operation, culminating in a visit by Queen Elizabeth II in 1990 to officially open the new locks and the flight (although the flight had been navigable for a number of years before then). In 2010 British Waterways planned to install sixteen new locks gates in twelve weeks as part of its winter maintenance programme, in an attempt to reduce the amount of water lost. The exceptionally cold weather delayed work, and when the section was re-opened at Easter 2010 only twelve pairs of gates had been dealt with. The wood from the old gates was donated to Glastonbury Festival and used to build a new bridge which was named in honour of Arabella Churchill one of the festival's founders.

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