Tagged stream

Kingcombe Aquacare Weed Boat Day

Aquatic Weed Harvester Demonstration on 4th April 2017 from 10:00am

 

Braunston Marina is situated at the junction of the Grand Union and Oxford Canals and was originally developed at the turn of the 19th century as the waterways depot at the northern end of what was then called the Grand Junction Canal. It now forms a focus for those interested in the canals, their boats and history.

With the kind permission of Braunston Marinas management team we are holding a demonstration event where industry professionals can come and see two of our “Aquatractor” weed harvesting boats and get a close  look at its unique features.

The boats “Jenny” and “Gordon” are based on a well tried and proven design. Capable of being trailered to site they are an efficient, reliable and agile workhorse capable of maintaining a high level of aquatic weed harvesting hour after hour. Unlike many boats the “Aquatractor” cuts and collects aquatic weed, which can then be deposited onto the bank or into a barge or trailer.

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The purpose of the day is to show the two boats to interested professionals and riparian owners who might have an interest in learning more about this method of mechanical weed control. During the season we have one boat based in London and the others operate from Somerset, regularly travelling as far afield as Liverpool, the North East and the Broads.

There will be members of Kingcombe staff on hand to discuss particular problems and introduce you to the wide range of services we offer.

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If you would like to come along, see the boats, walk around this historic site or enjoy a complimentary cup of tea and bacon roll at the Gongoozler’s floating café then please get in touch with Kelly to book a place on ke@kingcombe.com or call 01460 279200.

The Marina itself is located here: http://www.braunstonmarina.co.uk/Contact-Find-us

Get in touch if you are able to come along, we would love to see you.

http://kingcombe.com/aquatractor/home/

Wessex Water & Kingcombe Aquacare – working together for all of us

Kingcombe Aquacare Ltd are proud to be framework contractors for Wessex Water Services Ltd. We have built up a good relationship based on trust, reliability and understanding the needs of our client.

We have been involved in a range of projects, including the relining of final settlement lagoons, the repair and prevention of erosion, specialist fabrication design, and environmental project control.

Final Settlement Lagoons

Final settlement lagoons are found at many sewage treatment sites and are used to impound the water from the treatment process before it is released in to a watercourse. This is to allow any remaining sediment to settle out to ensure that the cleanest possible water is allowed to enter our streams and rivers.

We have been asked by Wessex Water to carry out lining works to several final settlement lagoons. We have installed Firestone EPDM liners to these lagoons to improve the integrity and extend the lives of these valuable assets.

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Installing Firestone EPDM as a liner in a final settlement lagoon

Erosion repair/protection

The wet weather and high flows experienced in recent years have caused many stream and river banks to suffer accelerated erosion. Several Wessex Water outfalls have been affected with the river cutting away the banks around the asset and we have been called in to carry out repairs.

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Eroded bank adjacent to a treated water outfall – before…
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….and after “soft” engineering repair, using growing material to stabilise and reinforce the bank
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Because of the speed of the water we also have to use “hard” repairs. In this situation we have installed a 3m high rock gabion wall to protect the lagoons from the flow of water which was eroding the outside of the bend.

Environmental Works

We also get involved with environmental works for WW such as permit applications, surveys and monitoring. We were asked to monitor the controlled drain down of a small reservoir recently. This involved measuring and recording the dissolved oxygen and turbidity levels, fish containment and maintaining a watch over the general fish health. We are pleased to announce that no fish were hurt in the undertaking of these works!

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Electrofishing the outlet channel after a controlled reservoir draindown

To view our full list of services please see http://kingcombe.com/water-maintenance-services/

As Good As New!

Kingcombe have been busy over the past 6 months de-silting in various locations over the South West including a project near Dorchester.

Working with the Environment Agency, we carefully reinstated a section of River back to its original condition.

Before the works started, an ecologist surveyed the area which determined when the work could take place and agreed the working methods.

A pre-start meeting took place to agree access, parking and emergency procedures.

Before

OLYMPUS DIGITAL CAMERA

Prior to starting, a detailed site specific inspection, environmental and site risk assessment and methodology were completed.

During the works

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Using a hydraulic excavator and a dumper, the silt and vegetation was removed from the river to a stockpile for later disposal.

Project Completion

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And it doesn’t stop there for 2016! This month, one of our site teams will be busy right up to Christmas de-silting a private lake near Warminster.

De-silting has been one of Kingcombe’s core activates for nearly 30 years and it gives us great pleasure to return a lake/pond/river or reservoir back to its original beauty.

Please contact us if you require further information on de-silting.

Flint House

Flint House, Design and Construction of Bespoke Water Features.

Flint House, sat within the landscape at the heart of the Waddesdon Estate, is the exciting brainchild of Lord Rothschild and his architect, Charlotte Skene Catling. It is designed to reflect the geology of the ground upon which it is built, rising out of the soil in two magnificent wedges of flint as if thrown up by a natural titanic convulsion of the earth.

As if to emphasise this seemingly natural evolution of the property, the main house boasts a grotto on the ground floor, through which a black but crystal-clear stream shimmers on its way out of the house and then down through the garden to a small lake on the edge of the property. The visual effect of the stream within the house is accentuated by a mirror ceiling to the grotto, which is also lined with the same flint stones which clad the exterior of the property.

Kingcombe’s task was to design and construct the stream to compliment the style and character of the property. The brief was to ensure absolute clarity of water within the grotto, but to harmonise the external watercourse with the landscape environment as it flows through the gardens. In keeping with the whole ethos of the property, this had to be achieved in a wholly sustainable manner. After examining the construction drawings and discussing the vision and intent with the team we felt that major changes to the design were required to ensure clean, algae free water in the grotto whilst maintaining the illusion of a running natural stream. After previous bad experiences the estate were adamant that the water features would remain clean to the point of saying they would discard the grotto if the water quality was not managed.

Using our experience based on many years of “hands-on “ water system maintenance and construction work, and our knowledge of both chemical and biological water treatment, coupled with experience of natural swimming pools providing nutrient management in the water we were able to consider the most appropriate solution.

We achieved this by creating a trompe d’oeil at the point that the stream exits the building. Water from the lake is recirculated up to the waterfall where the stream emerges from the building, ensuring that the external water is filtered simply by the natural plants growing in the lake. The internal stream is more carefully managed, employing sophisticated filtration equipment housed within an underground plant chamber hidden within a small copse planted in the neighbouring field. Sand filters, UV and bespoke phosphate reduction devices all combine to ensure the clarity of chemical-free water demanded for the feature within the building itself.

Liaising closely with Kingerlee, the main contractors, Kingcombe Aquacare managed to create the water feature whilst co-operating with all the other specialist disciplines on the site.

The property has since been awarded the highly coveted “House of the Year Award 2015” by the Royal Institute of British Architects, and featured heavily on Channel 4’s Grand Designs programme.

To quote just one of many articles on the property:

“This space also houses a pool of water that runs right through the building. A ceiling of black glass reflects the water, intended to create the illusion of infinite space.

The internal ‘river’ carves a mysterious, internal cave through the structure that separates the public spaces from the more introspective, with views across water, through fire and expanded in reflections.”

 Or, to quote Kevin McCloud, of Grand Designs, “the stream is just simply magical”.

Purbeck rock revetment

Rock Armour Flood Defence Work

In October we completed a successful flood protection and bank revetment project in Wiltshire. The return of our wintry wet weather will likely increase enquiries for this type of work so here is a short case study to demonstrate one of the many ways we can help deal with erosion and flood protection of rivers and streams.

Flood defence revetment
Flood defence revetment

The Problem

Working on a section of river that suffers from periodic flooding Kingcombe Aquacare were asked to remedy a failed section of bank protection and remove an obstruction within the channel.

The blockage in the channel was the main cause of the problem as it was causing water to back up in a flood event and also deflecting the flow towards the river bank.

The Solution

We designed a rock armour solution and obtained the relevant approvals from the the local authority before starting on site. We arranged for a qualified ecologist to check the site for the presence of protected species before proceeding. As with all in-channel works we set out a series of environmental protection measures to protect the watercourse from our work activities. These included a sandbag cordon, sedi-mats and an oil boom.

The obstruction was removed from the channel and the existing failed revetment dismantled. Following some preparation we lowered in slabs of Purbeck rock to form a stepped wall up to the designed level. Some voids were left in the rock to enable plants to colonise and soften the look of the stone. We used geotextile material and a little concrete behind the rock where necessary to ensure our solution stands the test of time.

Our client is delighted with the finished work and so are we! We can’t wait to see how it looks in 12 months when it has had time to weather in a little. This sort of revetment is useful in slow to moderate flows where periodic flood events are possible.

There are many erosion protection solutions available ranging from living bioengineering green methods to reinforced concrete and steel piles. Whatever your requirement please do not hesitate to call us, we would be happy to talk it through with you. Alternatively, have a look here