Herringbone pitching at Aira Force

After finishing our fencing job at Stickle Ghyll we've spent much of our time repairing a section of footpath over at Aira Force. We'd already moved all the materials, by helicopter, earlier on in the year, so it was just a matter of getting ourselves and our tools to site.

Before starting work

As you can see in the photo above, the original path has become quite badly eroded. It's also right next to a steep drop, so it was decided that we should create a new path further to the right and landscape the old path to blend in with it's surroundings.

The first job was to move the slate from the helicopter drop site to where it was required. We used our mechanical power barrow to make things a bit easier and it wasn't long until we had enough stone to work with.

The rock now moved to site

As we wanted to be able to secure rock for any future work (and there's a lack of quality pitching stone in the area) we decided to use slate rather than stone gathered from the fell. Aira Force is also a more formal environment than our usual places of work so we thought that we'd use a slightly different technique, known as herringbone pitching, that would be more in keeping.

Starting the new path

Basically, the path is created by a series of courses (similar to that of a drystone wall), with the slate sunk depth-wise into the ground. The first course ends with the the last stone a little higher out of the ground than all the others (this will be the start of the next step). The next course ends with two stones higher, the third course has three stones higher and so on. After a while you're left with a series of triangular steps as you can see in the photograph below.

Herringbone style pitching

It's almost as difficult to build as it is difficult to explain, but eventually once we all started to get our heads around it, the path really started to take shape.

The first section completed

Once all the stone work was done it was time to start on a section of gravelled path.

The line of the new gravel path

Firstly a tray to contain the gravel was dug out. All the soil removed was placed on the old footpath and the turf kept to one side to be used later on in landscaping the process.

Digging off the turf

Once the digging was finished it was time to start gravelling. The plan was to move the gravel in our "trusty" power barrow but after prising it off the frozen ground with crowbars it decided it didn't want to start so we moved all the gravel (about 6 tonnes) by hand. This was done by a combination of carrying it in rubber trugs and dragging it onto the path in the helicopter bags that were used to fly it to site.

Starting gravelling

Eventually all the gravel was moved and and the gravel path was joined up to the stone footpath.

Finishing off the gravelled path

All that was left to do was to landscape the old path with rubble, soil, boulders and turf so that walkers would now instinctively take the new route. 

Replacing the fence at Stickle Ghyll

Since finishing our work on Helm Crag we've spent much of our time replacing the stock fencing around one of the plantations at Stickle Ghyll.

The original fence was put in around 1984 with the help of the Manpower Services (a Government scheme set-up to help people into employment) to help stabilise the scree around the footpath. After we replaced the pitching next to the plantation in 2009 we planted up a few more trees, with the help of the Fix the Fells volunteers, but as time went by it's become easier for sheep to get in and graze on the trees. We therefore decided that the fence should be replaced and all the materials were flown to site earlier on in the year. Long-term it's hoped that once everything is properly established the fence can eventually be removed.

The first job was to work out exactly where the fence line should go. With the ground being extremely undulating with lots of large boulders and trees to work around it took a bit of time to decide on the best line.

Finding the best line

With this done it was time to start digging the hole for the straining post. A hole is dug to a depth the height of a shovel, the post is placed into the hole and rock is compacted tightly around it. This makes sure they are solidly in the ground as the wire fencing is strained off these posts so there's a lot of force on them, and you don't want them moving.

Finishing the hole for the straining post

With the post in the ground, a single wire is tightened between two "strainers" to give a straight line between the posts. A strut is then added to give the post even more strength, this strut runs parallel to the wire. A section of wood is then chiseled out of the straining post that the strut neatly fits into. The other end is dug into the ground and again tightened using rock.

Putting in the strut

With the post properly secured the next job is to knock in the fence posts at equal intervals along the length of the wire. Once this is done the Rylock stock fencing is stapled to one of the strainers and then strained from the other.

Attaching the fence

Once we were happy with the tension in the fence it is stapled to the other straining post and all the fence posts in between and "hey presto" you've got yourself a nice new section of fencing.

 

Nicely strained fence

FREE guided walks from Sticklebarn over half term

Come along for a guided walk with National Trust ranger James and Mountain Guide (and Fix the Fells voluntary lengthsman), Malcolm. There will be chat about Langdale’s history, geology and archaeology along the way and ranger James might even point out a few hidden gems for you to explore if you’re lucky.

All Walks start & finish from the Sticklebarn in Langdale LA22 9JU (Grid Ref: NY295 065).To make a booking ring James on 015394 63808

On the day, meet from 9am for a 10am start. Coffees & teas are available (and pack Lunches available for purchase).

Stickle Tarn

A wet weather walk option that takes us around the valley will be available if the weather is not suitable for the high level routes on Tuesday, Wednesday & Thursday.

Monday 29th October: Stickle Tarn and Tarn Crag via Stickle Ghyll

Distance 3.3km, total ascent 399m, total descent 399m, total walking time 2 hours. Grade: Medium. Walking mainly on footpaths.

Join us for a great little walk that packs a big punch.

We will walk up alongside Stickle Ghyll to picturesque Stickle Tarn where we can view the valley far below, and the lofty pikes of Pavey Ark and Harrison Stickle above. From here we will cross Stickle Ghyll and walk around the tarn until we start our route back via Tarn Crag down to Sticklebarn for well earned refreshments.

Tuesday 30th October: Langdale Pikes

Distance 6.8km, total ascent 723m, total descent 725m, total walking time 3.5 hours. Grade: Hard. Steep walking in places but no exposure.

Join us as we conquer the iconic Langdale Pikes.

Following a route up to Stickle Tarn we will skirt the eastern edge of the tarn before climbing the east side of Pavey Ark. We will then visit Harrison Stickle and Pike of Stickle before crossing Loft Crag and ticking off our 4th Wainwright of the day. We descend via Pike Howe past a couple of peat houses on the way back to Sticklebarn.

Wednesday 31st October: Pike O’ Blisco

Distance 7.2km, total ascent 619, total descent 623m , total walking time 4 hours. Grade Hard steep walking in places but no exposure.

Join us as we venture to the summit of the lonely Langdale Pike.

Set apart from its neighbours Pike O’ Blisco offers arguably the best views of all the Pikes.

This walk will take us up the valley of Oxendale and up to Red Tarn via the Browney Ghyll path. From here we will make for the wonderfully rocky summit of Pike O’ Blisco before descending down the path via Red Acre Gill.

Thursday 1st of November: Langdale Pikes (as Tuesday).

Friday 2nd November: Stickle Tarn and Tarn Crag via Stickle Ghyll (as Monday).

Wet Weather Option

Cumbria way to Elterwater.

Distance 8km, 3hours walking time (approx) mainly level walking on Public Rights of Way (but can be wet and rough). Taking in Farming, Quarries and Woodlands.

Dry stone walling on Helm Crag

Since our last update we've spent a fair amount of our time sorting out the drainage on the new Helm Crag path.

As you can see in the photograph below, the path takes a lot of water and if left to it's own devices heavy downpours can cause serious damage to a stone footpath. This photo was taken before we built an additional two drains higher up the path so the next time we have torrential rain the majority of the water will be removed before this point.

Rain water on the top section of path

The problem we've had with fixing the drainage is that there's a dry stone wall located right at the end of the drain stopping the flow of water. In the next photograph you can just make out the drain (halfway between the shovel and sledgehammer) coming to an abrupt end when it reaches the wall.

Drain leading into the wall

So to allow the water to run away from the path we've had to take the wall down and incorporate a gap in the wall at the end of the drain. The following photo shows the wall after we've started to rebuild it. Putting in these drainage gaps has turned out to be a bigger job than expected. As the wall was in a poor state of repair, once we started taking it down it had a tendency to fall down on it's own. This created a much larger gap than we really wanted!

A hole for the water to flow through

After a couple of days work the wall was rebuilt up to it's original height again. So next time there's a massive downpour (which probably won't be too far in the future) we're now fully prepared for it!

The finished wall

National Trust Working Holiday on Helm Crag

We recently took a break from working on the stone pitched path at Helm Crag as we were joined by a National Trust working holiday group. They were here for a week, coming to help us out with our footpath repairs.

As part of our repair work on Helm Crag we identified a section, leading up towards the summit, that we'd been keeping a close eye on for many years that had steadily been deteriorating. The path would have been difficult to repair with stone as it's not particularly steep, meaning there would be plenty of opportunity for people to step off the path and walk beside it.  There is also very little in the way of features, rough terrain or large rock about so it would have been difficult to landscape. This could have eventually ended up with an erosion scar (as you can see in the photo below) alongside the stone path, not ideal.

The section before starting work

So we decided the best option to repair the path would be to create a sub-soil path. This technique, also known as soil inversion, is an ancient technique that dates back as far as Roman times.

Starting work on the path

Firstly we had to select the best route to take with the new path. The path will zig-zag up the hill crossing the original (eroded) path line. We have to snake the path like this to reduce the gradient which will mean once we've created the new surface the chance of it becoming mobile is greatly reduced. It will also make the path easier to walk on.

Removing the turfs

With the route decided, the first job was to remove the turfs from the line of the path and place them to one side so that we could use them later.

Digging off the topsoil

With this done, the next job was to dig off the topsoil, again this was placed to one side as it would also be needed later. This dark layer, rich in humus (organic matter), varied in depth, but beneath it was a layer of compacted red sub-soil. The idea is to remove this compacted soil, put the topsoil back on the path and then put the sub-soil on top of it. This new surface is much more hard wearing and compacts down well, creating a more sustainable surface.

Digging the drain

Next a side drain was created on the top side of the path. This would catch any water that runs down the hill, and shed it away from the new path. Much of the drain went through areas of bedrock, so this all had to be chipped out with crowbars to make sure the drain would sit well below the surface of the path.

Freshly turfed drain and completed path

Once the drain was dug out, it was lined with turfs using the grass that had been originally dug off. This turf lining will provide a protective layer and prevent the soil in the drain from being washed out.

A wet finish to the week

There was plenty of showers throughout the week and the last day proved to be a particularly wet one. But the volunteers did a wonderful job, and the rain was at least useful to check that our new drains were working. This type of work is so labour intensive and so it's great to get more people involved, it really is a fantastic example of "many hands make light work". Thanks!

Advancing up the Helm Crag path

Since our last blog post we've been steadily advancing higher up the path at Helm Crag. Most of us have started work on fresh sections of path as we've joined up with the person working above. The photo below shows Pete just after starting on a new bit of pitching.

Shortly after starting a new section

After just over a week he's moved further up the path and Nic (who was working below) has joined up to where Pete started. The original path went through the soil on the right hand side. By taking this different route some of the gradient has been removed, meaning that the steps don't need to be as narrow or high. This makes the path much easier to walk down.

Joined up sections of path

In the following photograph Pete has almost joined up to the section above and is starting to put in a stone drain. The section above starts roughly next to the rucksack on the wall.

Approaching the next section

The next photograph shows some of the old path running alongside the wall, you can see how the path is angled which makes it difficult to walk down. When the path is wet or if gravel gets on to the path it can make a descent even more awkward.

The old path

The photograph below is the same section of path as that in the previous photo and nicely demonstrates the contrasting styles between the old and new footpaths.

The newly built path

The same section of path can be seen below after just over a weeks work. Again, the new path has more bends in it than the original path. As well as making it easier to walk on, it also makes the path much more pleasing to look at as it winds up the fell side. Once the surplus rock is removed and the area has been re-seeded there will be a dramatic difference in how the path looks.



Adding some more bends

Continuing our path repairs at Helm Crag

Since our last update the rain has continued to fall but with the mild temperatures and occasional glimpse of sunshine it's been great weather for our grass seed to grow.

The recently landscaped area has already turned a lush green colour and combined with the low level of grazing in the area it's also reached a good length. Sheep love it when we put down grass seed but when they graze freshly sown seed they tend to pull it out of the ground as the root system is not strong enough to hold it in place. So hopefully it will continue to grow, and strengthen, before the sheep notice we've put it down.

 

The grass seed beginning to grow

Over the last couple of weeks as we've completed a few more sections of footpath we've been landscaping the path along the way.

Landscaping is an essential part of the job as it helps the path to blend in with it's surroundings and also helps stop people wandering off the path and causing further erosion damage.

When we repair a path we often generate large amounts of rubble and soil and this is used to create banks, fill in eroded areas near to the path and also fill gaps between the pitching. Nothing goes to waste.

During landscaping work

You can see in the photograph above a bank of soil to the right of the path. This soil has been used to cover over rubble (which takes a long time to weather and blend in) and also to create a bank and drain to the left of the path. The soil has been shaped to create a natural looking mound and rock is dug into it at strategic points where people may wander off the path. Digging in weathered stone also helps create a more natural looking bank.

Filling in the gaps with soil

The photo above shows another bank of soil. Much of this was dragged to site using old heli-bags from a section being worked on where there was a surplus of soil. The soil here has been used to cover over, and stabilise, a patch of rubble that was dug out while repairing the path. It's also being used to fill in gaps between the pitching prior to seeding. 

Once these newly landscaped areas are covered with grass seed it hopefully won't take too long until they too green up and blend in nicely with their surroundings.