Showing posts with label canals. Show all posts
Showing posts with label canals. Show all posts

Forgotten History - The Bruge U-boat base

Some of you will have visited the World Heritage Site of Bruge. If you haven't I would suggest you add it to your bucket list.  It is well worth travelling to see [unlike the Giants Causeway of which Doctor Johnson said "Worth seeing, yes; but not worth going to see."] Bruge is well worth a long journey and a 2/3 day visit.

Wikipedia article on Bruge



Bruge was once one of the great commercial cities of Europe. What I did not realise until today was that it was also the location of a World War One German U-boat base. This was particularly surprising because Bruge is 14km from the coast. This map explains the geography.






A canal connects Bruge to its port of Zeebrugge.  The Germans kept the U-boats in pens in Bruge, outside the range of British naval guns. The torpedo armed boats [type UB] and the mine laying boats [type UC] were built in Germany then shipped in kit form by rail to be assembled in Belgium.



The boats then travelled down the canal to Zeebrugge and out to the sea to lay mines and torpedo British ships, mainly in the North Sea.

They did that very effectively. By the end of the war they had sunk a total of 2,554 Allied ships with a total tonnage of 2.5 million.

British anti-submarine warfare improved and by the end of the war 80% of the Bruge boats  had been sunk. Crews were understandably not keen on suicide missions and by 1918 some crews were either surrendering very easily or interning themselves in neutral countries.

If you would like to know more this book has just been published and this article is worth reading.




The Fontinettes Boat Lift

There are three ways in which you can move boats on a canal or river between different levels.

Locks - but these are slow and take up a lot of land.

Slopes - dragging boats up a slope [inclined plane or water slope]. Link to post about an inclined plane.

Boat Lifts - boats are moved into caissons and lifted between different levels. Link to post about a large new boat lift.  Link to some nearby boat lifts.

The boat lift at Fontinettes was built in 1887 to enable 300 tons barges to cross a 13 meter difference in level between two points on a river.  It replaced five locks. Moving boats by the lift took 5 minutes. The locks had taken 90 minutes. The lift was inspired by the Anderton Boat Lift built in 1875 in Cheshire. Link to post about Anderton Boat Lift.

The lift was in operation until 1967. It was replaced by a single large lock nearby that can lift 6 boats in a 20 minute operation.  The boat lift is a listed building and in the hands of a conservation group who give tours and boat trips.




The lift is in Arques, near the road to the Channel Tunnel

The lift is not far off the A26 but hard to find without GPS.  The lift coordinates are 50.7313, 2.3037. The coordinates of the replacement lock are 50.7285, 2.3075.


Blue arrows mark the channel from the lift to the river


One of the caissons


The filled and grassed over channel



A ride along Monteal's Lachine Canal

When the Lachine Canal was opened in 1825 it transformed Montreal. The Lachine Rapids had blocked access to the upper St Lawrence. The canal bypassed these rapids and turned Montreal into a major port. Along with other canals it linked the Great Lakes to the sea.

In addition, the canal provided hydraulic power and many factories were built along its 14.5 km length. From 1850 to 1950 the canal was the site of the largest industrial complex in Canada. Over the same period the population of Montreal increased from 58,000 to over one million.

The canal is now closed and has been declared a national historical monument. A cycle path runs along its length and along the banks of the St Lawrence.

In April 2014 I hired a bike from a shop in the Old Port of Montreal



They provided me with a good bike at a cost of $8 per hour or $30 for a full day. Unlike a bike shop I had used earlier in Vancouver the shop staff struck me as honest and competent. They provided good advice and an excellent map (see below).


I followed the route marked by red arrows on the map below, along the canal and back by the banks of the St Lawrence; a total of about 37 km.  It was an excellent ride and I would recommend it to anyone visiting Montreal.




Ice at the mouth of the canal
The Lachine Rapids
On the right you can see some industrial buildings that have been turned into housing

Cromford Mills - birthplace of the industrial revolution

The industrial revolution started in the cotton industry in England. There were a series of innovations which transformed  cotton production. Cromford was the home of two of the most important innovations, both created by the same person, and has a strong claim to be considered the birthplace of the industrial revolution..

The entrepreneur and inventor behind Cromford Mills was Richard Arkwright (1732 – 1792). He has the best claim to have invented both the water frame, a machine for spinning cotton, and, more importantly, started the factory system.

Before Arkwright built Cromford Mill most cotton was produced by the domestic system; skilled self employed people working in their own homes using manually powered machines. That domestic industry was destroyed by what started at Cromford.

There are several proccesses involved in cotton production and other innovaters besides Arkwright. However, the water frame was an important innovation, particularly because its characteristics lead to his second innovation, the factory.

Arkwright's water frame  had a number of important attributes.

  1. It vastly increased the production of spun cotton. It could not be ignored and was very profitably to its adopters.
  2. It could not be manually powered. It needed water power.
  3. It was too expensive for the home weaver and needed substantial capital investment.
  4. It could be operated by unskilled labour.
Attributes 2 & 3 meant that the water frame could not be used by home spinners, the frames had to be set up in mills and near water. Attributes 1 & 4 meant that the new mills soon destroyed the independence and livelihoods of the home spinners. It also meant cheap clothes and other cotton products.


Arkwright built the world's first water-powered cotton spinning mill at Cromford in Derbyshire [see map] in 1771.  Soon it had 300 workers and by 1789 the  mills employed 800 people. The hand weavers  had been well paid and were  their own masters. After Arkwright many had become unskilled labourers in factories.

The Cromford Mills template was soon adopted elsewhere in the cotton industry, and then in other industries, changing society for ever.


Mill site
The mills were water powered and this meant bringing in water through channels. You can see one in the photograph below. 


Water course to power mills and Mill 2in background
Arkwright, like Owen at New Lanark andTitus Salt at Saltaire, was a  benevolent employer [by the standards of the time] and  built homes for his workers, churches and provided basic education for the children employed in his mills.




I have visited a number of the old cotton mills and I thought that Cromford compared very badly with the others, such as New Lanark, Stanley and Saltaire [incidentally, Arkwright was involved with both New Lanark and Stanley]. The buildings are generally in a poor condition and there is almost nothing which explains the importance of the site and how the mills operated.

I don't know what has gone wrong at Cromford but clearly something has caused it to be so badly neglected.
Mill 1

Mill Managers House
Canal Wharf
Road transport was expensive and Arkwright built the Cromford Canal to move raw cotton in and finished cotton out. The canal terminus is very close to the mills.

Cromford Canal
Canal Wharf
Cromford Mills is one of the most important historical sites in Britain but it looks badly neglected. That has to change. At the moment it is only worth visiting if you happen to be passing very close by. As Samuel Jonson said, "Worth seeing, yes; but not worth going to see."

The canal boat lift at Strépy-Thieu

The Strépy-Thieu boat lift is on the Canal du Centre in Belgium. It is the largest boat lift in the world and is capable of lifting boats through a height difference of 73.15 metres (240.0 ft.

It was completed in 2002 to replace two locks and four 16-metre lifts. A new canal was dug to bypass the old locks and lifts. The old lifts are now UNESCO World Heritage sites. I have written about them in this post. The old lifts could pass boats of up to 300 tonnes. The lift at Strépy-Thieu can cope with boats of up to 1,350 tonnes and traffic on the canal has increased ten fold.

The lift is huge and dominates the flat Belgium countryside. It is visible from the Ronquieres Inclined Plane, an equally remarkable piece of canal engineering.

There are two independent caissons, each massing up to 8,400 tonnes. In the photograph below you can see both caissons. The white blocks below the left caisson are counterweights.

Like the nearby Ronquieres Inclined Plane the lift is promoted as a tourist attraction. You can take a boat ride through the lift and also tour the insides. I did not do either. You can see most of what is interesting from walking around outside.


A descending caisson

A caisson with 3 boats

The canal below the lift


Ronquieres Inclined Plane

The  Ronquieres Inclined Plane is on the Brussels-Charleroi Canal in Belgium. It was built in 1968 to replace 14 locks and can lift canal lifts boats of up to 1350 tonnes through 67.73 metres. Boats enter a water filled caisson and the caissons are moved up or down the Plane by cables pulled by a stationary engine.

Canal locks are common. Canal boat lifts are rare [though Strépy-Thieu, one of the largest in the world is nearby]. Inclined Planes are very rare. Ronquieres is the largest of its type in Europe and may be the largest in the world.

It is an impressive structure. The Plane is 1,432 metres [0.89 miles] long and has two tracks. Each track has a caisson almost 300 feet long. The photograph below was taken from the upper station and shows a caisson moving up the left track.

A caisson moves up the Plane

The upper canal


The lower station with a boat waiting to enter a caisson.

Looking up from the lower station

A caisson

The upper station
The tower shown above is at the upper station. It is not part of the workings of the Plane. The area is economically depressed and there  seems to been a rather strange attempt to turn the Inclined Plane into a tourist attraction. The tower is just for tourists and has nothing to do with the canal operations. You can pay to ride a lift to an observation level at the top of the tower and then look at the Plane and the surrounding countryside.  

The video below shows you what you will see; the Plane and the rather dull surrounding countryside. You will not see anything [such as the motor room] of the internal workings of the Plane. If that interests you you should see this page for information on the Plane's engineering.

I suggest you do not bother with the tower. It is not very interesting.If you go to the bottom of the Plane there is free parking and you can get a good view of the entire incline.



If you click on the canals tag on the right of the page you will find  posts on the old World Heritage boat lifts on the Canal du Centre and the giant boat lift at Strépy-Thieu.

Off road across southern England

It is possible to cycle off-road across a large stretch of southern England, from Reading to Bristol. This is a distance of 95 miles. Most of the route is on the towpath of the Kennet & Avon Canal. The section from Bath to Bristol is on an old railway track that has been converted to a cycleway.

The Ordinance Survey blog has a post on the route.

I have cycled two sections; most recently a section from Bradford on Avon [which the OS blog accurately describes as 'a gem of honey coloured stone houses'].

Canal at Bradford on Avon

I hired a bike from Towpath Trail, an efficient bike shop which has a large stock of mountain bikes for hire, and had a very pleasant few hours going west towards Bath.

There are several trails and canals running off the route.



Entrance to a side canal

There were a lot of boats on the canal. Some were hire boats, but there were also many rather decrepit boats belonging to people who appear to live full time on the canal. I suppose living on a canal boat is a good way off staying away from the gaze of Britain's surveillance society.

Anderton Boat Lift

The Anderton Boat Lift was built in 1875 to allow canal boats to move between the Trent and Mersey Canal and the River Weaver. The Weaver connects to the Mersey, then the Port of Liverpool and then the world.

It was a big success. It was used to export salt from the  Cheshire "salt towns".  It was also used to import clay to the Potteries and export crockery.  In 1913 213,000 tons moved through the Lift.

The boat lift closed in 1983. It has now been restored to full working order and is a local tourist attraction.



A boat lift is a simple contraption. There are two metal tubs [aka caissons], each large enough to hold a canal boat, which can be raised or lowered. One is held level with the upper waterway and the other with the lower. Both tubs are filled with water.


A boat that has to be raised is put in the lower tub and displaced a weight of water equal to its own weight. Both tubs now weigh the same. The lower tub is now raised using a little power, most of the work being done by the weight of water in the upper tub as it descends. Gravity and Archimedes Principle do most of the work,  little extra power is needed.



Boat lifts are faster and use less water than canal locks, but they are rare.   I think there are only two boat lifts in the UK. The other is the newly built Falkirk Wheel.  The Belgians have recently built a huge one at Strépy-Thieu. The Chinese are building several.



There is a new visitors centre next to the Lift,  It has a very well equipped shop and bookshop. Visitors can pay to ride a canal boat through the Lift but it looked expensive, slow and not all that much fun [unless you are desperate for amusement].

A matchstick model of the Lift

Edwin Clarke, the engineer who built the lift, went on to build the four lifts on the Canal du Centre. They are now a UNESCO World Heritage site. You can read my post about those lifts here.

If you want to read more about the Anderton Boat Lift I recommend

Carden, D. and  Parkhouse, N., 2005. A Guide to the Anderton Boat Lift, Black Dwarf Publications.