The Anonymous Widower

Mersey Tidal Project And Where It Is Up To Now

The title of this post, is the same as that of this article on the Liverpool Echo.

This is the sub-heading.

With a major agreement on the project reached this week, we take a look at what it all means.

There is a section, which is called So What Is A Mersey Tidal Project?, where this is said.

The idea is to build a huge damn structure in the River Mersey with turbines that can harness energy from the tides of the river and convert it into clean power. The city region combined authority is hopeful that this could power up to 1 million homes and create thousands of local jobs

The city region has one of the country’s largest tidal ranges so it is seen as a perfect opportunity to explore a tidal project here. It is hoped such a project could generate a ‘plentiful, reliable supply of clean, green energy for generations to come.

In the 1970s, I did a small project management consultancy at Frederick Snow and Partners in London. They showed me their ambitious plans for a Severn Barrage, which was a tidal scheme, that would have created a tenth of our electricity and would have cost around a billion pounds.

But Harold Wilson, who was Prime Minister at the time, felt that the money would be better spent on building massive coal-fired power stations, rather than building a clean power station, that would last centuries.

A second section is called What Happened This Week?, where this is said.

This week the Liverpool City Region signed an agreement with the company behind the current world’s current largest tidal project with a view to learning lessons.

The Sihwa Lake tidal range power plant, which is operated by Korea Water Resources Corporation, generates 552GWh of clean, green energy every year, replacing the equivalent of 862,000 barrels of oil a year.

Jeong Kyeong Yun, Vice President of Korea Water Resources Corporation, known as K-water, was in Liverpool this week to sign an historic Memorandum of Agreement with Mayor Rotheram. It is hoped the agreement will pave the way for close co-operation between the two tidal power projects, through reciprocal visits and information sharing.

Note.

  1. The Liverpool Echo is still making spelling mistakes, like damn instead of dam. In the 1960s, Fritz Spiegl used to give us all pleasure by writing about them.
  2. 552 GWh would keep the UK powered up for nearly a month.
  3. The Sihwa Lake Tidal Power Station has a comprehensive Wikipedia entry.
  4. The Sihwa dam has a road over the top.
  5. Unlike Frederick Snow’s scheme for the Severn, Sihwa only generates power, on the incoming tide. But it does generate 254 MW.

As ever, Liverpool is thinking big and getting the experience from those, who know what they are doing.

This last paragraph, gives the thoughts of the Mayor.

Mayor Rotheram said that with the right support, he hopes the project could be generating clean, renewable power by the end of this decade.

I would go along with that.

The Mersey Tidal Project And The Mersey Gateway Bridge

Frederick Snow’s plans for the Severn could have incorporated a new road and rail crossing of the estuary.

This Google Map shows the the Sihwa Lake Tidal power station.

The road over the dam is clearly visible.

I took these pictures of the Mersey Estuary as I came back from Liverpool on Tuesday.

This Google Map shows the Mersey Estuary.

Note.

  1. The River Mersey flowing from the North-East corner of the map to the South-West corner.
  2. On the South Bank of the Mersey, there is the deep-water channel of the Manchester Ship Canal.
  3. The bridge in the North-East corner of the map is the Mersey Gateway Bridge.
  4. Then there is the pair of bridges at Runcorn; the Silver Jubilee Bridge and the Runcorn Railway Bridge.

I am fairly sure, that the Mersey Tidal Project would be built downstream of the pair of bridges at Runcorn.

This Google Map shows the Mersey Estuary from the Runcorn Bridges to the mouth of the Manchester Ship Canal.

Note.

  1. The Mersey Gateway Bridge and the two Runcorn bridges are in the North-East corner.
  2. The route of the Manchester Ship Canal is clearly visible.
  3. Liverpool John Lennon Airport is on the North Bank of the Mersey.
  4. The M56 and M53 Motorways run East-West across the map to the South of the River.

This map leads me to the conclusion, that a tidal barrage with a road on top could link Liverpool to the M56.

I have some thoughts.

Rail Access To Liverpool

There is an electrified railway between Liverpool and Ellesmere Port.

  • The railway can be picked out running across the bottom of the map.
  • In Liverpool’s Vision For Rail, I talked about Liverpool City Region’s plan to expand this service to Helsby, Frodsham and Runcorn East.
  • Helsby and Frodsham are shown on the map.

I wouldn’t be surprised to see a new Park-and-Ride station, where the M56 and the railway cross.

Ship Access To Manchester And Other Ports

Barrages usually have to provide access for ships to pass through to any ports behind the barrage.

But the Mersey Tidal Project already has that access. – It was built in the 1893 and is called the Manchester Ship Canal.

There is probably strong protection between the Mersey and the Canal between the mouth of the Canal and Runcorn, which may impact positively on the costs of the barrage.

The Simple Barrage

Sihwa Lake Tidal power station is a simple barrage with a bridge over the power station in the middle.

This Google Map shows the location of the power station.

Note.

  1. Seoul is in the North-East corner of the map.
  2. The Sihwa Lake Tidal power station is marked by the red arrow.

This Google Map shows a close-up of the power station.

Note.

  1. The ten turbines appear to be in the gap.
  2. There appears to be a road on top of the barrage.
  3. The area to the West of the power station is marked as a rest area.
  4. A Moon Observatory is marked.
  5. It has bus stops, showing that it is served by the 123 and 123-1 buses.

It is an impressive structure.

I’m sure that this type of barrage would work over the Mersey.

  • A road could be built on top.
  • It may only be able to generate electricity,from an incoming tide, like Sihwa.
  • It could incorporate a rest area.

I do suspect though Liverpudlians would add a few unique touches of their own. Perhaps some liver birds or superlambananas.

The Frederick Snow Solution

The Severn is a wide river and he proposed that there would be a dam across the river, with a spine running East along the middle of the river.

  • The spine would divide the river into two lakes.
  • On the incoming tide, sluices would open and allow water to flow into the Northern or high lake from the Mersey estuary.
  • On the outgoing tide, sluices would open and allow water to flow out of the Southern or low lake into the Mersey estuary.
  • Water would flow between the high and low lake through turbines to generate electricity.
  • I have assumed that the high lake is on the North side, but if the geography is more suitable, the high and low lakes could be reversed.

In the design for the Severn Barrage, an International airport would have been built on the spine.

But Liverpool already has a nearby International airport, so perhaps it could be much better to install a large electrolyser and hydrogen storage on the spine.

 

 

 

 

 

 

 

February 10, 2023 Posted by | Energy, Hydrogen | , , , , , , , , , , , , , , | Leave a comment

Northern Powerhouse Rail – A New Line Between Liverpool And Manchester Via The Centre Of Warrington

In this article on Transport for the North, which is entitled Northern Powerhouse Rail Progress As Recommendations Made To Government, one of the recommendations proposed for Northern Powerhouse Rail is a new rail line between Liverpool and Manchester via the centre of Warrington.

I shall look at a few of the possibilities for various sections of the line starting at the Manchester end.

High Speed Two And Northern Powerhouse Rail Between Warrington/Lymm And Manchester Airport

This map clipped from High Speed Two’s interactive map, shows the route of High Speed Two in the area between Lymm and Manchester Airport.

Note.

  1. High Speed Two is shown in orange
  2. The blue dot is Manchester Interchange station at Manchester Airport.
  3. High Speed Two goes North to Wigan North Western station.
  4. High Speed Two goes South to Crewe station.
  5. High Speed Two goes East to Manchester and the East.
  6. The East-West Motorway is the M56 with Junction 7/8 in the middle of the map and Junction 9 with the M6, at the Western edge of the map.

This enlarged map shows High Speed Two between Manchester Airport and Junction 7/8 of the M56.

 

The colours of High Speed Two indicate the type of construction.

  • Black is a bored tunnel. Only in the North East corner, where it continues to Manchester.
  • Brown is a track between retaining walls. Used through Manchester Interchange or Airport station.
  • Red is a viaduct.
  • Yellow is a cutting.

This Google Map shows a similar area.

High Speed Two’s tracks will be on the South side of the Motorway and will be shared with Northern Powerhouse Rail.

  • There is likely to be up to twelve trains per hour (tph) in both directions.
  • I would think, that with modern signalling that the trains would be running at 140 mph or more.
  • Between Manchester Airport and Warrington could be a line as between St. Pancras and Ebbsfleet on High Speed One.

This map clipped from High Speed Two’s interactive map, shows the M56 and High Speed Two around Junction 7/8 of the M56.

The colours are as before.

  • The obvious way to build a new rail line between Manchester and Warrington, would surely be to create a rail junction just South of the Motorway junction.
  • A line to Warrington could run along the South side of the Motorway.
  • I also believe that there should be a connection between the High Speed Two lines to Manchester and Wigan North Western, to allow high speed services between Manchester and Barrow, Blackpool, Preston, Windermere and Scotland.

Building the rail junctions around the Motorway junctions would be a good idea for environmental and visual reasons.

Northern Powerhouse Rail would then continue to Junction 9 of the M56 Motorway.

This Google Map, shows the M56 around Junction 9 with the M6.

Note.

  1. The M56 running East-West.
  2. The M6 running North-South.
  3. Lymm services to the North-West of the junction.
  4. Lymm is to the North-East and Warrington is to the North-West of the junction.

Would it be possible for to run South of the M56 and then turn North to run along the Western side of the M6 towards Warrington?

I very much feel, that with modern 3D software, an engineer with expertise in extreme knitting could thread a double-track line through to take a North-Western route towards Warrington.

The Bridge Across The Mersey

If you look at maps of the area, there is a big problem of water between Junction 9 of the M56 and Warrington town centre, with its two stations of Warrington Bank Quay and Warrington Central, both of which have services to Liverpool Lime Street station.

The problem is the Manchester Ship Canal.

I then noticed a bridge to the South East of the town centre, which is shown in this Google Map.

It may look like it has got more than a touch of the dreaded iron moths, but it certainly looks like it was once a double track rail line.

The bridge was on the Warrington and Altrincham Junction Railway, which did what you would expect from the name.

This Google Map shows the track of the railway either side of the bridge.

Note the bridge in the centre of the map and the green scar of the former railway running East-West across the map.

To the East the green scar of the railway can be picked out all the way to M6.

Note.

  1. The bridge is at the West over the Manchester Ship Canal.
  2. The green scar of the Warrington and Altrincham Junction Railway can be followed all the way to the M6,
  3. I think the track is now a footpath, as it is marked on the map with a dotted white line.

I would be interested to know, if it could take a modern double track railway.

This Google Map shows an enlarged view of where the green scar of the Warrington and Altrincham Junction Railway goes under the M6.

Note the dotted white line marking the railway, towards the top of the map.

Would it be possible to design a track layout, where Northern Powerhouse Rail came up the Western side of the M6 and was able to connect to Warrington?

I certainly believe it’s a possibility.

Warrington Bank Quay Station

To the West of the bridge over the Manchester Ship Canal, the Warrington and Altrincham Junction Railway ran through low-level platforms at Warrington Bank Quay station.

This Google Map shows Warrington Bank Quay station.

This picture shows a freight train passing under Warrington Bank Quay station.

Note.

  1. There are four North-South platforms on the West Coast Main Line.
  2. The Warrington and Altrincham Junction Railway passes East-West under the four main platforms.
  3. Low levels platforms used to handle passengers on the East-West lines.
  4. I was looking to the East in the picture.
  5. The tracks continue to the West on the route of the former St. Helens Railway, which is now a freight route.
  6. The map shows the tracks curving sharply round one of the meanders of the River Mersey.

Warrington Bank Quay station is on a congested and tight site, but by using some of the spare railway land, I feel it could rebuilt to be an excellent station for Warrington.

Warrington Bank Quay Station As An Interchange

Warrington Bank Quay station could be an excellent and efficient interchange between High Speed Two and Northern Powerhouse Rail.

There are also local services from the station, which could be useful for some travellers.

Between Warrington Bank Quay Station And Widnes

This Google Map shows the Mersey estuary between Warrington Bank Quay station and Widnes.

Note.

  1. Warrington is in the North-East corner of the map, with Warrington Bank Quay station shown by a red station symbol.
  2. The new Mersey Gateway bridge is in the South-West corner of the map.
  3. The River Mersey meanders between the bridge and Warrington.
  4. Fiddlers Ferry power station can be picked out in the nearest meander of the Mersey to the bridge.
  5. The dark straight line below the river is the Manchester Ship Canal.
  6. There is currently a freight line on the North bank of the river.

This Google Map shows Fiddlers Ferry power station, with the railway between the now-decommissioned power station and the River Mersey.

Note.

  1. Fiddlers Ferry will become an employment site.
  2. It could even be a good place for a depot for Northern Powerhouse Rail.
  3. I think there’s scope to increase the operating speed of the railway along the Mersey.

Could it even be an electrified high speed line with a 125 mph operating speed?

Between Widnes And Liverpool Lime Street

The trains coming from Warrington could join the Liverpool Branch of the West Coast Main Line at Ditton East Junction.

The route between Ditton East Junction and Liverpool Lime Street has the following characteristics.

  • It has four tracks.
  • It is 10.6 miles long.
  • Avanti West Coast’s expresses typically take twelve minutes for the trip without stopping.
  • The stations on the route; Liverpool South Parkway; West Allerton, Mossley Hill and Edge Hill, all have one platform per line.
  • It is fully electrified.
  • Lime Street station has recently been updated with longer platforms and a higher capacity approach to the station.
  • Some local services have already been moved to Merseyrail’s Northern Line.
  • Stopping services on the route have their own platforms.

I believe that with the installation of full digital signalling and a degree of automatic train control, as far as Crewe and Warrington Bank Quay stations, that the following services could be handled.

  • Six tph – Northern Powerhouse Rail – Liverpool and Manchester Airport and Manchester Piccadilly
  • One tph – East Midlands Railway – Liverpool and Nottingham
  • Three tph – High Speed Two – Liverpool and London Euston
  • One tph – High Speed Two – Liverpool and Birmingham Curzon Street
  • Two tph – London North Western – Liverpool and Birmingham and London Euston

Note.

  1. This is only 13 tph.
  2. Avanti West Coast services would be replaced by High Speed Two.
  3. TransPennine Express services would be replaced by Northern Powerhouse Rail
  4. The Liverpool and Nottingham service may or may not go via Ditton East junction.

If the capacity on this branch could be raised to 15 tph, that would be only be a train every four minutes, or half the frequency, that will eventually be operational on Crossrail and Thameslink. It would also be less than the 18 tph frequency of High Speed Two.

Conclusion

This simple exercise has proven to me, that a high speed line could be built between Manchester Airport and Liverpool Lime Street station.

  • Several sections of the route could have an operating speed of 125 mph or more.
  • By running the tracks along the M56 and M6, visual and aural intrusion could be minimised.
  • The line along the Mersey through Warrington could be a valuable part of the route.
  • West of Warrington, much of the infrastructure needed, appears to be in place and it would only need to be upgraded.

There was a large and extremely pleasant surprise at the Liverpool end.

The approach to Liverpool Lime Street is two fast and two slow lines, and I believe, that this section of the route could handle up to say 15 fast trains and six stopping trains per hour, with full digital signalling.

Unlike London and Manchester, I doubt that Liverpool will need a tunnel to access the City Centre.

I also believe that after its refurbishment of the last couple of years, Lime Street could be substantially ready for High Speed Two and Northern Powerhouse Rail.

Project Management Recommendations

This project divides neatly into three.

  1. Between Manchester Airport and Warrington along the route of the M56 and M6.
  2. Reconstruction, upgrading and electrification through Warrington and the rebuilding of Warrington Bank Quay station.
  3. Reconstruction, upgrading and electrification between Warrington and Liverpool.

The first project will be a major one, involving the construction of nearly twenty miles of new electrified railway, with numerous viaducts, bridges and a large junction at High Legh with High Speed Two.

The other two projects would be a lot simpler and would involve turning twenty miles of double-track freight line into a modern electrified railway.

I would construct projects 2 and 3 early in the schedule, as it would give Warrington a new Bank Quay station. A passenger service to Liverpool Lime Street, could also be opened if required.

 

 

 

November 20, 2020 Posted by | Transport/Travel | , , , , , , , , , , , , , | 11 Comments