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Case Study: Clearing A Blocked Ditch and Two Culverts

The Problem: A Ditch and Two Culverts Blocked with 100 Tonnes of Silt

 

Our services were required to maintain the drainage system of an estate in Birdham. Two culverts and a ditch had become blocked with a dangerous level of silt.

clearing a ditch and culverts

Cutting roots in ditch and culverts

The ditch had become over grown with tree roots and weeds. The culverts were becoming clogged with silt. The maintenance was required as part of flood prevention work in the county. The ditch ran along the side of the housing estate and was essential to their drainage in the face of a large amount of rainfall. Without this work, flooding would be a serious danger for these properties.

Hydro Cleansing clearing a ditch and culvert

Our solution:

Following our site visit Hydro Cleansing established that the following were required to complete the job:

Three areas were blocked: a ditch 85m in length was blocked with approximately 80 tonnes of silt waste; one 450mm culvert that was 65m in length and one 450mm culvert which was 100m in length. The amount of waste in the culverts was confirmed on completion of the job as 13 tonnes. A 20,000 litre  bulk tanker brought the water supply for the high pressure jetting work which was required to dislodge the silt and mud from the tree roots in the ditch. The water was also necessary to jet through the culverts. The work was completed over 5 days. The CCTV team were there for 2 days completing pre work and post work surveys.

The 2 man team Jetting a culvert and ditch clearworked in the ditch, jetting the silt clear of the roots, while maintaining the essential tree roots.

The powerful suction of the super combination unit at 3500CFM meant that the silt was sucked away into the waiting articulated bulk tanker. The waste was removed and disposed of each evening at Hydro Cleansing’s own wet waste disposal plant.

 Tankers clearing ditch and culvert

Hydro Cleansing’s Result

Clearing the 85m ditch, 65m and 100m culvert and removing and disposing of 100 tonnes of waste was completed on time and meant the risk of flooding was significantly reduced. 

 

Kingston Fatberg

Over the past few weeks you can’t have escaped the press coverage that has surrounded the now infamous fatberg lurking under Kingston, southwest London. If you have then you’ve most probably been hiding down a sewer yourself! The supposed ‘bus sized’ fatberg could have potentially pushed raw sewage up into homes and onto the streets of Kingston but how has this been allowed to happen?

Weighing in at a reported 15 tonnes this mount of congealed fat, oil and grease mixed with other revolting waste products was brought to the attention of local water authorities after local residents complained about having difficulty flushing their toilets. But how can its weight have been calculated when it hadn’t even been removed.  Surely the actual weight of a fatberg cannot be decided properly until the job is complete?

Subject to contrary belief we believe the fatberg is yet to be fully removed and in fact weighs a lot less than 15 tonne. Without the necessary equipment and technical know-how the removal of this particular fatberg will take a lot longer than expected, all the while still causing problems for local residents. Time and investment are an essential requirement when it comes to preparing yourself to undertake such specialist works. Megatron is a textbook example of this.

Megatron was commissioned back in 2008 when Hydro Cleansing invested over half a million pounds engineering this wastewater monster to our own personal spec. From our perspective we had three main objectives we wanted to achieve:

  1. Increase the capability of a single onsite vehicle, which also reduces our environmental impact and carbon footprint
  2. Cope with the inevitable migration from planned to reactive works
  3. Time efficiency, reducing job turnaround times

With Megatron now undertaking works that were previously relinquished, and with more units in the pipeline, Hydro Cleansing are more than capable of embarking on any major works or specialist projects all the while alleviating any concerns that the job is to big or can’t be done at all.

Kingston Fatberg

Image taken from www.theguardian.com

Blocked Drains

Hydro Cleansing are now offering blocked drain services from £65, within London.

We recognise that a blocked drain at the wrong time, in the wrong place, can have a major impact.

So whatever the problem, the nature or location we have the expertise, the drain jetting technology and the manpower to resolve the situation and keep your business running, or your home safe.

Contact us now on: 08082565844

Find out more here or visit our dedicated blocked drain website here.

Blocked Drains

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