Sewer Connections – Page 2

Stafford Sewer Connections

Projects

Stafford Sewer Connections, Case Study

We were approached by Pritpal of Dulkoo Properties, in Stafford, he had built a new house and needed a connection to the sewer, for both foul and surface water.

Objective

Our objective was to make a connection to the surface water connection in the Highway, at 1.5m deep and lay pipework back to the site boundary. The foul connection was a bit trickier at 3.5m deep, and from here we also laid pipework back to the site boundary.

About the project

We met with Stafford Highways to discuss traffic management for the job, and despite the works being on a 3-way junction, we agreed on 2-way traffic lights, but with signage on the side road indicating that traffic on the main road was under signal control. We located the surface water pipe on day 1, on the opposite side of the road to the site. The existing pipe was less than 1.5m deep, and the connection was made using ‘junction insertion’ method. The connection was inspected and passed by Severn Trent Water, and then from the connection point we laid pipework back to the site boundary. The STW Inspector requested that the pipework be concrete-protected, due to how shallow it was in the carriageway. With the surface water pipe laid and the excavation backfilled, we reinstated the Highway to Stafford Highways’ spec. As a Class 1 road, this required in excess of 300mm of tarmac to be laid, in three layers.

The new road surface was allowed to cool overnight, and the traffic lights were switched over in the morning, and excavation was started in preparation for the foul connection. At an invert depth of over 3.5m, we expected to find the top of the 450mm foul sewer at a depth of approx. 3 metres. Due to the depth of the excavation, an extensive amount of trench sheeting and acrow props were required to enable safe entry into the excavation for our operatives. Having excavated down to 2.5m however, and having made the excavation safe, we started to encounter groundwater coming into the sides of the excavation deep down, which were unable to control with pumps. The ground was ‘silty’ and the volume of water made it impossible for us to continue. With the water content we had to deal with and the nature of the ground combined, it is not possible to use pumps to remove the water. We consulted Dewatering Services Ltd whom we have used on a number of occasions, and made plans for them to come to site to ‘dewater’ the ground. Unfortunately they were unable to come there and then, and due to the traffic-sensitive nature of the road, Highways required us to abandon the excavation, reinstate the road and remove the traffic management, which we did.

Just over a week later, we set up the traffic lights all over again….! And Dewatering Services Ltd came to site. In preparation for their arrival, we had re-dug down to a depth of just over two metres, and reinstalled the trench-sheeting system. The Dewatering system included metal rods being pushed 5m into the ground, the whole system was installed in a day. 24 hours later and the excavation had been dried out, we excavated down another metre or so to get to our target depth of 3m, and installed more trench sheets and supports further down. We located the top of the 450mm concrete sewer at 3.15m down from the road level. The concrete sewer was encased in more concrete, which needed to be broken off carefully with a handheld breaker, to gain clear access to the pipe for core-drilling. We instructed a professional core-driller to core-drill into the concrete pipe. With the hole having been cored, we fixed a clay saddle onto the 450mm sewer and secured the saddle and the first clay pipe, with extra-strong and quick-setting mortar. From the connection point we continued to lay 100mm clay pipes towards the boundary. This included excavating under numerous existing services both in the carriageway and in the pavement and cycleway.

The dewatering equipment was removed from site as soon as we came up to 1.5m dig depth, near to the site. The excavation was backfilled and the carriageway, pavement and cycleway all permanently reinstated.

The project was a reasonably challenging one, due to the dig depth and the water content within the ground. But it is not unusual to encounter groundwater such as this, especially at this depth, and we have plenty of expertise in this area, and often at much deeper depths as well. It was a pleasure to have carried out this work for Pritpal, and we wish him every success with this project and any others we are able to help with going forward.

Timeline

Time taken to quote for the works: 1 week

Time taken to obtain Section 106 Licence: Our customer already had this

Time taken to obtain Section 50 Licence: The licence only took a few weeks to obtain….

Leadtime to use S50 Licence: …….but we had to wait in excess of 3 months before the work could be started, due to other works being undertaken in the area, a road closure around the corner. Highways will not often permit two jobs to run concurrently within a certain radius, and we are never able to carry out works in what is a ‘diversion route’ for another road closure.

Time taken to do the work: 3.5 weeks including us having to go away for a week and then come back with Dewatering Services

Total time: 4.5 months including the delay in being able to use our Section 50 licence, due to other roadworks being carried out in the vicinity.

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Woodcote Sewer Connection

Projects

Woodcote Sewer Connection, Case Study

Objective

We were delighted to be approached by Greenham Construction from Newbury, a first-time customer. They were building a high-end property in Woodcote, South Oxfordshire, and needed the property connecting to the public sewer.

About the project

The property being built was a long way from the Highway, and the levels didn’t work with getting into the public sewer by gravity. Therefore a pump system was installed within the site, an MDPE pipe was laid in the track leading to the site, and a ‘break chamber’ installed a few metres from the boundary with the Highway. This was all done by the customer, with us instructed to do the gravity work in the Highway.

The customer already had the Section 106 approval, which detailed connection onto the public sewer by way of new manhole construction. We put a quote together for our customer based on information provided to us, the Thames Water Asset Drawing, and also what we were able to see on Google Earth and Google Street View.

The customer was happy with our quote in principal, so we did a site visit whereby we lifted manholes to check pipe depths etc. The road was fairly narrow for the work that was required and we were concerned that a road closure would be required, which would have added a few thousand pounds to the cost. Ordinarily we need to leave 3.5m carriageway width outside of our works, but we were only able to leave 3m. However Oxfordshire Highways were happy with 3m available carriageway, so the works were able to proceed using ‘give & take’ traffic management, which is normally the cheapest method.

We started on site two months after our initial contact with the customer. Upon locating the existing sewer we found the pipe material to be asbestos, which are still quite common. Our operatives are asbestos-trained for this reason, and we took all necessary precautions to ensure that the existing pipe in the road was cut safely and as per H&S regulations relating to asbestos.We constructed the new manhole on top of the existing sewer using concrete 1.2m diameter sections, finished with a ‘biscuit’ and a 150mm D400 manhole cover.

We then excavated for and laid the pipework from the new manhole, to the boundary with the customer’s property. The pipework we laid was a bit under 2m deep, and consisted of a few metres in the carriageway and the remainder in the tarmac footpath. As this was a quiet road, we closed the footpath and diverted pedestrians onto the other side of the road whilst the works were carried out. With the pipes laid, trenches backfilled and reinstated, the Highway was reopened and the site cleared 6 days after we started.

It was a pleasure to carry out these works for Greenham Construction and we look forward to working with them again in the future.

Timeline

Time taken to quote for the works: 1 week

Time taken to obtain Section 106 Licence: (Customer already had this)

Time taken to obtain Section 50 Licence: 3 weeks

Leadtime to use Licence: 4 weeks

Time taken to do the work: 1 week

Total time: 9 weeks

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Sewer connection, Leicester

Projects

Sewer connection, Leicester, Case Study

Objective

We were approached by Nisha from Neisa Investments for both foul & surface water connections for a small block of flats in Leicester City Centre. As per Severn Trent’s guidelines for sewer connections for new properties, the fact that there were more than 2 units, made it that new manhole construction was required in the Highway for connection to both the foul and the storm water.

About the project

Due to the road needing to be closed for this project there was a mandatory 3-month legal lead-time between us being granted our Section 50 Licence by Highways, and us being able to use the licence. A week before the work was to start, we did a letter-drop to the surrounding properties, which is always a condition of a Section 50 licence. We also had to put Advance Warning Signs up on lamposts a week before the closure was to start.

The two manholes we were to construct in the Highway for the foul and surface water were to be 3m deep and 2m deep respectively. The two existing sewers were in block paving, so we spent the first day lifting hundreds of block paviors and putting them to one side for future reinstatement. We tackled the foul connection first, constructing a manhole on top of the foul sewer just over 3 metres deep. This required the excavation being sheeted out with trench sheets, timbers and acrows etc. The manhole was constructed using standard 1200mm concrete rings with steps for future access. The manhole was finished with a D400 manhole cover as is standard on adoptable manholes in the Highway. We constructed the surface water manhole next, though this one was a bit shallower at 2 metres.

With the manholes constructed and inspected on a site visit by Severn Trent, we calculated the gradients required to lay the pipework from these two new manholes, to the two demarcation manholes built by the customer’s groundworkers just inside the site boundary.

The pipework in the carriageway was in block paving the same as the two manholes, with the path being paving slabs. With all pipework laid and tested, the deep trenches were backfilled with gravel and Type 1 MOT compacted in many layers.

The block paving and slabs were reinstated and the site cleared exactly two week after we started.

It was great to carry out this relatively major sewer connection in the heart of Leicester City Centre, and for a really friendly customer as well..

Timeline

Time taken to quote for the works: 1 week

Time taken to obtain Section 106 Licence: 5 weeks

Time taken to obtain Section 50 Licence: 3 weeks

Leadtime to use Licence: 3 months legal lead-time due to road closure

Time taken to do the work: 2 weeks

Total time: 6 months

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Sewer Connection Macclesfield

Projects

Sewer Connection Macclesfield

We were approached by long-time customer of ours Fox Construction of Chapenhall in Scotland. Fox undertake full refurbishments and new construction of Shell Petrol stations throughout the UK. Their job in Macclesfield required us to make a surface water connection to the public sewer.

Objective

Our objective was to lay pipework from the site boundary of a new Shell Petrol Station, and to connect into an existing surface water manhole 80 metres away in the carriageway. The gradients in the Highway didn’t work with the site, and so a pump was installed within the site by Fox, and we took care of all the work in the Highway.

About the project

Fox Construction took care of the Section 106, on this occasion, the wastewater provider being United Utilities. JW Clark applied to Cheshire Highways for the Section 50 Licence, including submission of utilities drawings, our accreditations and insurances, drainage plans supplied by Fox and a traffic management plan which we instructed a third party to put together.

We met with Highways and agreed a 3-day road closure of a narrow country lane at the back of the site, from where we would lay the MDPE pumped main. The work in the lane was completed in 3 days including full tarmac reinstatement. For the purposes of closing the road, we had to complete a TTRO road-closure application, which included us submitting a diversion plan to Highways and then instructing a third party to set up the road closure and also the diversion including full signage around the site and also along the diversion route.

Following on from this, we laid 40 metres of MDPE pipework in a grass verge and tarmac footpath. At this point we built a 2m deep ‘break chamber’ where the pipework would change from an MDPE pumped main, to 100mm clay pipework (on gravity)

The clay pipework was laid to an existing manhole in the carriageway, nearly 4m deep. Due to the location of the existing manhole, it was proving challenging to retain access to people’s driveways as the excavation would be in the region of 3m square, for us to work safely at 4m dig depth. We also found the ground to be very unstable, with running sand at 3m deep. With this in mind we approached United Utilities who had granted the Section 106, and proposed an internal backdrop, with the aforementioned engineering challenges in mind. United Utilities were in agreement and we submitted our proposals including full design and materials to be used etc. The internal backdrop was installed using 150mm ductile iron, built into the benching of the inside of the manhole at the bottom.

With the connection complete, the pump chamber was commissioned by Fox Construction and rising main in the Highway tested under pressure. With tests complete and with all reinstatement complete, the site was cleared less than 10 working days after starting on site.

JW Clark continue to work with Fox Construction on sites across the UK.

Timeline

Time taken to quote for the works: Less than 1 week

Time taken to obtain Section 106 Licence: Fox Construction already had this

Time taken to obtain Section 50 Licence: 6 weeks

Leadtime to use S50 Licence: Highways required only one week

Time taken to do the work: 2 weeks

Total time: 10 weeks from enquiry by Fox, to the work being completed

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Sewer Connection, Ketton

Projects

Ketton case study

Kevin Miller was a first-time customer of ours, who contacted us following a Google Search, for a sewer connection he needed doing.

Objective

Kevin owns an outbuilding in the picturesque village of Ketton, in Rutland. He wanted a connection doing to the public sewer for facilities within his outbuilding. The nearest public sewer was over 60 metres from the public sewer in a combination of unmade ground, tarmac road and grass verge.

Our Solution

We acted as agent for Kevin in applying for the Section 106 to Anglian Water (AW), as we do for the majority of our clients. Although we normally tend to ask out customers to supply us with a drainage drawing for the application, the nature of the project meant that an architect would not ordinarily have been instructed for any reason. So we put together a basic drawing ourselves, which AW accepted. The application was approved within 10 working days, and was for foul only, with the surface water being discharged separately into the existing land, as is AW’s strongest preference.

With the Section 106 ‘Approval Letter’ to hand, we approached Rutland Highways with a view to making a Section 50 application. We supplied all utilities drawings, a traffic management plan and our accreditations and insurances etc. We have been dealing with Rutland Highways for many years, and the application was turned around in less than 3 weeks.

We started on site a month later, so the whole process from first contact with our customer, quoting for the works, doing the S106 and S50 applications, and starting on site, was completed within an 8-week, which is very quick for a sewer connection.

We started in private property and laid plastic pipes and manhole chambers from the building to the boundary with the Highway. At the boundary we built a demarcation manhole 1.6m deep with a D400 manhole cover to finish, as it would be continually driven over thereafter. From there laid 100mm clay pipes through a grass verge, across a quiet road, and back into another grass verge. The connection was made onto a 150mm existing clay sewer, at approximately 2m deep. AW inspected the connection and signed off with an approval, which we downloaded and gave to our customer for his future reference. All surfaces in the Highway were reinstated as found and the site closed down.

Whilst we were on site we also scraped off the vehicular access track to the property, we laid geotextile membrane and then we laid and compacted Type 1 MOT granite.

Customer review

Kevin was extremely complimentary of our work and of the people working for us on site, and was kind enough to leave the following 5-star review for us on Google:

JW Clark Ltd: 5 Star Groundworks Experience (Lifesavers Included!)

I can’t recommend JW Clark Ltd highly enough! I recently needed some groundworks done to connect a new toilet to my stables. They dug a 60m trench, 30m of which ran through my driveway.

The owner was fantastic. He provided a clear quote that he stuck to, and even offered two helpful suggestions: replacing an ageing water line and finishing the driveway with crushed rock. Both suggestions made perfect sense and added significant value to the project.

The crew themselves were top-notch. They received a perfect 5 out of 5 from me for their quality work. They were friendly, hard-working, and kept me informed throughout the project. They even consulted me on details like the driveway’s turning circle and topsoil placement. Additionally, they came up with a clever way to simplify the drain connection, showcasing excellent communication skills.

JW Clark Ltd left the worksite spotless, exactly as promised. The owner was always responsive to my questions, addressing billing, licences, and access agreements clearly. They’re an honest, reliable, and meticulous company – everything you’d want in a groundworks team. They even kept me in the loop with the project’s progress by sending a series of pictures, as promised.

Here’s where things went above and beyond! Halfway through the project, I had a sofa scheduled for delivery. The long, muddy driveway, blocked by trucks and trenches, made the delivery crew hesitant. Seeing my predicament, the JW Clark Ltd crew offered a helping hand. They used their skid steer loader to carefully transport the sofa from the delivery van all the way to my house!

If you’re looking for top-quality work at a fair price, with a team that goes the extra mile (literally!), look no further than JW Clark Ltd!

It was a pleasure to have carried out this work for Kevin, at JW Clark we speclialise in sewer connections for both commercial and domestic customers, and for existing and new dwellings. For a quote for a new sewer connection click here

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Sewer Connection, Sywell

Sywell Northants Sewer Connection JW Clark

Projects

Sywell case study

Having done many such projects for Tom at Fountain Construction, we were pleased to be asked to quote for another connection to the public sewer for one property in Sywell, Northants.

Objective

Having done many such projects for Tom at Fountain Construction, we were pleased to be asked to quote for another connection to the public sewer for one property in Sywell, Northants. Tom and his team had laid all the pipework in private property up to the boundary and we were asked to lay all the pipework in the Highway and to make connection onto the public sewer. As part of our package we also priced for facilitating the Section 106 application to Anglian Water and also the Section 50 application to Northants Highways. Tom already had the AW asset drawing which had been downloaded from Digdat, and this showed the public sewer to be a bit less than 2m deep.

Our Solution

The Section 106 was to include for some surface water to discharge into the sewer. Tom supplied us with drainage drawings which detailed attenuation within the site, after which a significantly reduced-flow of surface water would be allowed to discharged into the public sewer – soakaways were not a suitable means of discharging of rainwater, due to the heavy-clay nature of the ground.

The Section 106 was passed within 10 days on this basis, and we then proceeded to apply for the Section 50 to Northants Highways. The road would have been suitable for ‘give and take’ traffic management, however the work was just past the brow of a hill, and traffic in each direction did not have very clear line of sight, of oncoming traffic. So it was decided to apply for 2-way lights for this reason. Our application to Highways was approved just under three weeks after submission to them.

About the Project

We located the existing 150mm sewer at 1.9m deep in the road. The excavation was made safe throughout with trench sheets and the connection made by junction insertion. We then excavated for and laid the pipework all the way to the kerbline, and reinstated the carriageway. With the carriageway resurfaced, we diverted pedestrians onto the carriageway into a purposely set-up pedestrian walkway, after which we continued to excavate in the grass verge and footpath. We laid the pipework to the site boundary, and reinstated the verge and footpath.

Timeline

Time taken to quote for the works: 1 week

Time taken to obtain Section 106 Licence: 2 weeks

Time taken to obtain Section 50 Licence: 3 weeks

Leadtime to use S50 Licence: 3 weeks

Time taken to do the work: 4 days

Total time: 10 weeks

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

It was a pleasure to work with Tom again and we look forward to our next project with him.

Sewer Connection, Hendon

Projects

Hendon case study

We were approached by Ivaro Ltd to facilitate a connection to the public sewer for a block of flats in Hendon, London.

Objective

We were approached by Ivaro Ltd to facilitate a connection to the public sewer for a block of flats in Hendon, London. In this instance, the sewer did not run past the new development in the Highway, and we found the closest public sewer to be 60 metres away in the carriageway, in the middle of a busy 4-way junction.

Our Solution

We had meetings with architects working on behalf of Ivaro Ltd, to help put plans together to detail the most cost-effective connection to the existing sewer. This included to connect onto the pipework laid by the developer at the boundary, after which point we extended the pipework into the road by 8 metres where we built a virgin inspection chamber in the Highway, and where the run would turn at 90 degrees before heading along the carriageway square with the kerb line. The new run of sewer would continue down the Highway for 60 metres to meet with the existing public sewer on a busy junction, whereby we would build an inspection chamber on top of the existing public sewer.

We had a Zoom call with an office-based engineer from Thames Water, and with our customer and their architect participating also, whereby we detailed our plans. These plans were approved in theory on the Zoom call, and the architect proceeded to compile drawings to this effect. These were then submitted as part of a Section 106 to Thames Water on behalf of our customer Ivaro Ltd, and the approval was given within a couple of weeks.

About the Project

With the Section 106 approval in place, we were then able to apply for the Section 50 licence with Barnet Highways. The application process included a site meeting with Barnet Highways whereby we detailed the technical aspect of carrying out the works in the Highway, and the traffic management that we proposed to use. For the bulk of the works we agreed on ‘give and take’ traffic management, with an official parking suspension for the duration of the works, to ensure that cars could not be parked in the vicinity of the works. For the connection point on the busy 4-way junction, we agreed on a 4-day road closure on one of the 4 roads, with this closed road being used to carry out the bulk of the work from, and where plant and materials would be stored. The 4-day road closure had to be done to coincide with a local school being closed on a Friday and Monday, and therefore our works on the junction would run from the Friday to the Monday, with us working over the weekend, to make the connection to the public sewer and to construct the new inspection chamber, with final tarmac reinstatement being done on the Monday, and all roads being opened again early on the Tuesday ready for the reopening of the school.

With the road closure in mind, we took care of the TTRO applications to Barnet Highways on behalf of our customer, and instructed a Traffic Management company to facilitate the road closure, including the vehicular diversion. This included us submitting traffic management and diversion plans to Barnet Highways.

Prior to us ‘breaking ground’ in the Highway, the application process to Thames Water and Barnet Highways for the Section 106 notice, the Section 50 notice and the TTRO application, took around 12 weeks in total. Once on site, the works were completed in just under three weeks, including the weekend work. All of these properties were occupied within weeks of the completion of our works.

Whilst working on Bell Lane, Hendon, we received many cups of tea from the locals, many of whom were extremely complimentary about the manner of our employees and the way in which the works were carried out from start to finish. A Koscher bakery existed within the works area, and the owner dutifully came out every morning with free cakes for all of our employees, which was an extremely heart-warming experience.

Timeline

Time taken to quote for the works: Less than 1 week

Time taken to obtain Section 106 Licence: 3 weeks

Time taken to obtain Section 50 Licence: 4 weeks

Leadtime to use S50 Licence: 3 months required due to part-road closure for the works

Time taken to do the work: 2.5 weeks

Total time: 19 weeks

Do you need a sewer connection needs doing? Don’t leave it too late, most people do! Read our article here: How long does it take to do a sewer connection?

Customer review

Our customer was equally complimentary, and a pleasure to work with, and was kind enough to give us a Google review at the end of the works:

“Absolute pleasure working with John and his team. So considerate to the neighbours and polite. All works carried out on time and on budget. John was extremely thorough on explaining to me the process and works on site during the course. I will be using their services on future developments. Would strongly recommend them.”

Category: Sewer Connections

Projects

Stafford Sewer Connections, Case Study

Objective

About the project

Timeline

Projects

Woodcote Sewer Connection, Case Study

Objective

About the project

Timeline

Projects

Sewer connection, Leicester, Case Study

Objective

About the project

Timeline

Projects

Sewer Connection Macclesfield

Objective

About the project

Timeline

Projects

Ketton case study

Objective

Our Solution

Projects

Sywell case study

Objective

Our Solution

About the Project

Projects

Hendon case study

Objective

Our Solution

About the Project