Tag Archives: bioengineering

Solution

High Energy Inter Tidal Solution on the River Exe

Salix’s Ready-filled Rock Mattresses provided a solution to flood protection works needed on the River Exe. This quick and cheap approach provided a stable, natural embankment on the high energy…

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Jack Keys laying Rock Mattresses in river bed for erosion control
Solution

Our Rock Products are the (Jack’s) Key to Preventing Erosion

Jack’s Keys needed a rapid response to scour and erosion problems. Our pre-filled Rock Mattresses and Rock Rolls were the answer, our Menzi Muck Spider machine was able to climb…

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Royal Wharf intertidal reed bed solution
Solution

Intertidal Planting Solution on River Thames

Creating a reed bed on an intertidal part of the Thames river is challenging – but Salix achieved a fantastic result as a consequence of their unique design approach.

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Coir Rolls pre-established with native plants providing erosion control at Porter Brook
News

Flashy Floods in Car Park Solved

Rock Rolls and pre-planted Coir Rolls & Pallets were used to prevent erosion whilst creating a lovely habitat in Sheffield City centre where a culverted stream had been flash flooding

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Aqualogs are available in 2 by 0.2 m
Product

Erosion Control Aqualog

Aqualogs are a durable fibre log made from waste material destined for landfill. They are effective revetments used in erosion management and they also happen to improve water quality

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Rock Rolls and VMax C350 providing erosion control at Yeoville Junction
News

Rail River Rock

Rock Rolls and VMax C350 provide ecological erosion control at Yeovil Junction, protecting the railway from undercutting by the River Yoe

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VMax C350 and Bionet protect the soils both above and under the water
News

Bringing Biodiversity to Hydro Plant in Pershore

VMax C350 & Eronet are used on this hydro project to protect the inlet channel and surrounding soils from erosion, working with nature for natural solutions

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Eronet c125 will ensure that the soil behind the Coir Rolls and Pallets does not get washed away whilst plants establish
News

The Avenue, Erosion Control & Habitat Creation Within SuDS on Old Contaminated Land

Salix have been appointed as specialist contractors to deal with the erosion control and habitat creation within a SuDS for a mix of housing and business parks at The Avenue

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Solution

Naturalising a Stream at Bedlinog

Constant flooding and erosion had been causing some serious problems for Merthyr Tydfil Council who manage an old reclaimed tip site, close to the village of Bedlinog in the Taff…

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Conwy overtopping winter 2015
News

Conwy Spillway Success

In 2009 Team Van Oord installed 9000m2 of Salix’s VMax Shear Stress Turf as part of the Conwy Flood Alleviation Scheme, seven years and many major overtopping events on and…

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Rock Rolls on the River Washford
Solution

River Washford Roadwater Erosion Protection

The increasing frequency of flood events on the River Washford required the existing system to be replaced and improved.

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Spider Menzi Muck Excavator moving large woody debris below Swinsty Reservoir
Solution

River Washburn Restoration

Salix were approached as river restoration experts and because of the innovative Menzi Muck Spider machine which is capable of climbing in and out of a river causing little disturbance.

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Well established Coir Rolls by Cliff Carson
News

Coir Rolls Aid Biodiversity Boom

Our Coir Rolls are superb at erosion control and they are also brilliant for wildlife. Wildlife such as Water Voles benefit enormously from the immediate cover that the mature plants…

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Spraying HydraCX at Silent Valley
Solution

Silent Valley Erosion Control

HydraCX™ was applied to 125,000m2 of poor, erosion prone soil at a large landfill site in Ebbw Vale, South Wales. HydraCX is a hydraulically applied erosion control product that protects…

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Spider machine at Cwmparc
Solution

Cwmparc River Restoration

Salix worked with Natural Resources Wales at Cwmparc in the Rhondda Valley to renaturalise the water courses in order to reduce flood risk and increase biodiversity.

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Solution

River Dulais, Rhosmaen Llandeilo

Salix’s River Dulais project demonstrating the use of large woody debris (LWD) is now ten years old and has been is included in the manual of River Restoration Techniques.

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walthamstow by Steve Ayers
News

Water works at Walthamstow Wetlands

Walthamstow Wetlands by Stephen Ayers The latest stage of the transformation of Walthamstow Wetlands into the largest wetland nature reserve in London will see the creation of new reedbeds to…

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A11 drainage channels vegetating
Solution

Green Swales on Roadside

Soft engineered ‘Green Swale Grass Channel’ attenuates road run-off water, filters suspended solids, and traps hydro carbons and heavy metals, significantly improving water quality.

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Pre-established coir rolls and pallets
News

Bridging the Ecological and Engineering Gap

Bridging the ecological and engineering gap with our effective bio-engineering solutions

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VMax-C350-and-P550-erosion-control-in-CIWEM
News

Turf Reinforcement Erosion Mats in CIWEM

Our Technical Director, David Holland, has been in the most recent edition of CIWEM’sThe Environment Magazine talking about the value of our 3D reinforced turf mats in erosion control. We…

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Solution

Woodberry Wetlands

Desilting a large reservoir in the heart of London and creating a new wetland habitat. Dredging silts enabled us to create 13,000 square metres of new reed bed

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Machine in action at Swinsty
News

The Spider on the River Washburn

Innovative spider machine helps restore wildlife habitats on the River Washburn. Yorkshire Water’s trial works to improve the quality of the river environment downstream of Swinsty reservoir is now well…

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Rock rolls arrive in bundles with certified lifting straps
News

Rock Rolls – Effective Erosion Control

Rock Rolls offer flexibility and the fact they arrive on site pre-filled with stone greatly reduces installation time and therefore cost, compared to in-situ filled gabions. Rock rolls and mattresses can…

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VMax P550 turf reinforcement mat showing good vegetation growth
Solution

Erosion Control on Loch Garry Spillway

Erosion control using Tensar VMax P550 on Loch Garry spillway and embankments

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VMax P550 turf reinforcement mat showing good vegetation growth
News

Erosion Control on Loch Garry Spillway

Tensar VMax P550 is designed for use as erosion control on steep slopes, high-flow channels, spillways, and shorelines.

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Cwmparc and the spider in action
News

Slowing the flow at Cwmparc

Cwmparc with the spider in action With funding from the Welsh Government’s Nature Fund, we supported Rhondda Cynon Taf Council in taking steps to naturalise one of the concrete channels…

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Olympic wetlands
News

Wetland Management Course – NOW FULL

We are hosting a 2 day Practical Wetland, River & Sediment Management Course at our Croxton Park Nursery, Norfolk, 7-8 July 2015 supported by frog environmental and cbec ec-engineering ltd.

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Woodberry Wetlands desilting work
News

Woodberry in the Guardian

Wildlife gardening on a colossal scale, The Guardian admires our Woodberry Wetlands work. Desilting large areas of the old reservoirs to create new reedbeds.

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Native plants, reed beds and pond at East Tullos Burn
Solution

Restoring East Tullos Burn

East Tullos Burn project transformed a waterway from a straight, hard-engineered channel, into a natural stream, functional floodplain and wetland habitat.

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Solution

Naturalising Norfolk’s Chalk Rivers

Salix has helped the Norfolk Rivers Trust to improve wildlife habitats on the chalk River Babingley, Hillington Estate near Flitcham, and River Nar at Pentney, near Kings Lynn.

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HydraCX being applied at Silent Valley site
News

Silent Valley Landfill

HydraCX has been applied to a landfill site in Ebbw Vale. The liner system isolates the landfill contents from the environment therefore protecting the soil and ground water from pollution.

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New reedbed and wetland area being created
News

Wetland Creation for New Wildlife Reserve

We have started pump dredging/desilting at Woodberry Wetlands in East London, creating new reed beds and islands. Our desilting work uses an amphibious machine…

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News

Salix helps naturalise the chalk River Nar

Working with the Norfolk Rivers Trust and cbec, Salix has just completed a project to help to improve wildlife habitats on a section of the chalk River Nar in west…

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Rock mattress tie in detail at hydraulic jump zone with Vmax C350
Solution

Sandwich Flood Alleviation and Spillway Scheme

The £21.7 million flood defence scheme involved works on 16 individual reaches of the river and it reduced the risk of tidal flooding to 488 homes and 94 commercial properties…

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Solution

Scour Protection at Lhanbryde Spillway

Following the 2005 £2million Lhanbryde Flood Alleviation Scheme, near Elgin in Moray, in Summer 2014, Salix worked with Royal HaskoningDHV engineers to improve erosion control on the dam’s spillway. After…

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News

Salix installs new green channel to reduce A11 pollution

Salix has installed a revolutionary green drainage channel along an 18km stretch of the A11 in Norfolk, between Fiveways and Thetford.

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News

Salix to showcase innovative phosphorus removal techniques

Phosphorus is one of the most common parameters causing a watercourse to fail water quality standards set out under the Water Framework Directive. 

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News

Keeping up with the coir

Salix’s Technical Director David Holland visited Sri Lanka over Christmas with his family to see how coir fibre production is shaping up.

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River Teme riverbank protection
News

CIWEM’s Winter Conference

Salix is sponsoring CIWEM’s one-day Winter Conference, to be held at the Brunei Gallery in Russell Square, London on 29 January 2015.

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News

Salix in CIWEM magazine

We were very fortunate to appear in this month’s CIWEM The Environment Magazine with regards to our work on the Olympic Park Wetlands – the largest ever bioengineering project undertaken…

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News

Soft bank protection for Getty Estate’s new lake island pavilion

Working with Mace, Salix has helped the Wormsley Estate to construct a stunning new island pavilion on its lake. Sir Paul Getty began restoring the 2,500-acre Wormsley Estate in the…

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Installing Ifield boardwalk piles
News

Lake Desilting & Environment Improved at Ifield Mill Pond

Salix is working with Crawley Borough Council and Jacksons Civil Engineering to help improve Ifield Mill Pond & Water Gardens, the area’s most important wetland and a designated Site of…

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Titchwell Marshes Rock Rolls close up
News

Salix Rock Rolls Protect Titchwell Marsh

As part of a series of measures to protect the freshwater habitats at Titchwell Marsh Nature Reserve on the north Norfolk coast, Salix has supplied the Royal Society for the…

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Revetments at Midhurst
News

Lake Desilting & Biodiversity Improvements at Midhurst’s South Pond

The South Downs National Park Authority has commissioned Salix to help create a wildlife haven on the South Pond, at the edge of Midhurst town centre in West Sussex. The…

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East Tullos map
News

New wetland habitats at East Tullos Burn

Salix has worked with Aberdeen City Council, cbec and Walking-the-Talk to restore the East Tullos Burn in St Fittick’s Park, Torry, transforming it from a straight, hard-engineered channel into a…

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News

Salix is now Europe’s largest producer of coir fibre rolls

Working directly with ethical, organic and sustainable suppliers in Sri Lanka, each year Salix imports hundreds of tonnes of compressed coir fibres and turns them into Coir Rolls and Pallets…

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CocoNet 800
Product

CocoNet 800

CocoNet is a strong hand woven biodegradable net made to our unique specification under licence in Sri Lanka. The hand woven net increases surface cover and surface roughness…

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One Year Later. Note the Reed Canary Grass (Phalaris arundinacea)
Solution

Darwen Bank Stabilisation

A 120 metre reach of river had been subject to ongoing bank instability issues. A gas pipeline set in the bank was dangerously close to being exposed and bank revetment…

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Solution

River Rhiw Bank Protection

Salix were awarded the contract and began works to carry out 300 metres of riverbank protection to protect this existing exposed high pressure gas pipe in March 2013.

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Solution

Olympic Park Wetlands

Salix were involved in making the Olympic Park a reality, when we were awarded the prestigious Tier 2 Contract in 2009 to grow all the wetland and wet wildflower plants…

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BioHaven Floating Islands on the Serpentine
Solution

Floating Island Benefits Wildlife

As part of a programme of wildlife habitat improvements in the Royal Parks, a large floating wetland island has been built on the Serpentine Lake in London’s Hyde Park.

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Solution

M25 Road Widening

Salix were tasked with greening up a 45 degree slope consisting of 6F2 fill. The initial design was a covering of 150mm of topsoil over an area of about 8,000m2…

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Solution

Kingsbury Tamworth Rail Line

Salix applied HydraCX in September 2009 to slopes consisting of 6I/J fill material with no imported topsoil covering the surface. The project was monitored each year to see how the…

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We are the largest grower of native wetland plants in the UK
Product

Native Wetland Plants

Salix grow a diverse range of native wetland and wildflower plant species from nurseries in South Wales and Norfolk. We are the largest grower of native wetland plants in the…

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We plant our pallets at a high density and grow on at the nursery
Product

Coir Pallets

Salix produce a wide range of pre-established coir pallets planted with high quality native plant species. Coir pallets are composed from coir fibre which is a sustainable waste product from…

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Coir Rolls
Product

Coir Rolls

Coir Rolls are an organic living revetment that provide erosion control and rapid vegetation establishment. Salix have developed a range of specific species mixes for use in all types of…

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Bionet C125BN 100% Biodegradable blanket
Product

Bionet C125BN

Tensar Bionet biodegradable erosion control blankets are designed to provide immediate erosion protection and vegetation establishment assistance, then degrade after the root and stem systems of the vegetation are mature…

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HydraCX high performance spray on erosion control
Product

HydraCX™

HydraCX is a hydraulically applied erosion control product that protects slopes against soil and seed loss from heavy rain and wind from day one of application. It is 100% natural,…

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Installing Eronet erosion control blanket
Product

Eronet C125

Tensar Eronet C125 Photodegradable Double Net Coconut Erosion Control Blanket (ECB) is constructed of 100% coconut fibre stitched with UV stabilized polypropylene thread between heavyweight UV stabilized polypropylene top and…

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Salix have the facilities to contract grow turf using the VMax3 range of  Turf Reinforcement Mats
Product

VMax³ Shear Stress Turf

Salix have the facilities to contract grow turf using the VMax range of Turf Reinforcement Mats (TRMs). VMax C350 or P550 is used as the reinforcement element within the turf giving…

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Vmax P550 C-TRM showing Composite 3D Structure
Product

VMax³ P550

VMax³ P550 is composed of a permanent, ultra-high-strength, three-dimensional matting structure incorporated with a permanent 100% polypropylene fibre matrix.

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Image of Vmax C350 C-TRM showing 3D Composite Structure
Product

VMax³ C350

VMax³ C350 Permanent Turf Reinforcement Mat is a high-strength, three-dimensional matting structure, incorporated with a 100% coconut-fibre matrix that supplements the permanent matting structure’s grass germination and erosion control capabilities…

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Rock mattress tie in detail at hydraulic jump zone with Vmax C350
News

Sandwich Flood Alleviation Scheme

The £21.7 million flood defence scheme involves works on 16 individual reaches of the river and will reduce the risk of tidal flooding to 488 homes and 94 commercial properties…

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News

Balfour Beatty endorse Salix’s erosion control solutions

We are delighted to report that Balfour Beatty have included our Eronet C125 and VMax C350 erosion control solutions and our Rock Mattresses in their Innovation Sheets. Rock Mattress installation…

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Biohaven floating wetlands support long term mature plant growth
News

Royal Parks, Serpentine Lake

BioHaven Floating Islands on the Serpentine As part of a programme of wildlife habitat improvements in the Royal Parks, Salix have been awarded a contract to create large floating wetland…

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News

Roadwater Erosion Protection

The River Washford runs through the village of Roadwater near Minehead, Somerset. The catchment creates a flashy river which floods parts of the village in large flood events. The increasing…

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News

Medmerry Realignment Scheme

The above image is Copyright of The Environment Agency 2013. Medmerry is one of the stretches of coastline most at risk of flooding in southern England. The overall scheme involves…

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Training-Day-at-Salix-nursery-with-frog-environmental
News

BioHaven Innovation

Wetlands are an incredibly valuable environment, both to nature and wider society; BioHaven can offer all of the ecosystem services of a healthy functioning wetland but can be placed in…

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Living-Root-Wad-Revetment
News

10th Anniversary River Dulais Project

Tenth Anniversary of Salix’s Project on The River Dulais, Rhosmaen, Llandeilo. Salix’s River Dulais project demonstrating the use of large woody debris (LWD) is now ten years old and we…

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Rock rolls arrive in bundles with certified lifting straps
News

Rock’n’Roll!

Rock Rolls are a robust, flexible and permanent revetment for use around reservoirs, shorelines, lake edges, streams and river banks. They are environmentally sensitive, cost-effective revetments that are suitable alternatives…

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Installing-VMax-P550-Turf-on-the-Teme
News

Salix appointed Sole UK Distributor for VMax Soil Erosion Range

Salix are pleased to announce that We have been appointed as the sole distributors of the VMax® range of soil erosion control products formerly known as North American Green. Salix…

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River Teme 4 machines placing fill
News

Tough Test on The Teme

The River Teme is a sensitive SSSI and SAC river and over 150 metres of severe bank erosion was threatening a National Grid pipeline. Salix were the lead Design and…

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Richmond Park Boardwalk and planting
News

Under The Boardwalk

Richmond Royal Parks is a walkover for Salix and Sir David Attenborough’s Volunteers. In our last newsletter and in the piece On Her Majesty’s Service we featured the start of…

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News

Better Banks!

The Environment Agency are responsible for the river bank stability at Railway Lane, Lewes and recognising the integrity of the existing blockwork facing was deteriorating began to look into solutions…

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News

Olympic Odyssey for Salix

Olympic Park Wetland 2012 We are delighted to finally unveil our role in making the Olympic Park a reality, from our initial involvement way back in 2008, right through to…

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Beginning the reed bed creation at Pens Pond, Isabella Plantation, Richmond Park on behalf of the royal parks
News

On Her Majesty’s Service…

Work has commenced at one of our most prestigious locations to date – The Royal Parks. We have been appointed as a result of being able to demonstrate our experience in…

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Solution

Wilderness Lake

The Wilderness Lake is an important coarse fishery and recreational resource on the edge of Porthcawl in South Wales. It also functions as a flood storage area for the surrounding…

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Solution

Gloucester Business Park

A new warehouse complex required a large balancing pond to take surface runoff water. The pond had steep sides which required some form of ground stabilisation.

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Cwmbran Boating Lake
Solution

Cwmbran Boating Lake

The boating lake was a popular local attraction and fishing lake. The lake edges were in bad repair with little or no marginal vegetation. Floating islands were also required to…

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Longham Lakes
Solution

Longham Lakes

Working for Bournemouth & West Hants Water, Salix were appointed as Main Contractor to undertake 2km of bioengineering works to stabilise the shoreline of a new reservoir.

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Ramsden Bellhouse Embankment
Solution

Ramsden Bellhouse

A series of potentially dangerous deep seated failures on a railway embankment required treatment to prevent further slips. The geotechnical issues of ground stability were resolved using soil nailing.

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Solution

Chipping Campden Rail

HydraCX was sprayed onto 5,500m2 of re graded rail embankments to prevent erosion and establish vegetation rapidly without importing expensive topsoil. HydraCX also replaces erosion control geotextiles.

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Solution

Foss Dyke Bank Stabilisation

A rise in pleasure boating on the Foss resulted in severe boat wash. Monitoring revealed that the rate of bank erosion was up to 2.5 metres in a year over…

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Solution

Pewsey Rail Embankment

A rail embankment had slipped and was reinstated with soil nails providing geotechnical stability. Birse created working platforms with imported stone and then used a soil cell system to retain…

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Solution

Afon Gwydol Embankment

Works were required to repair an eroding railway embankment adjacent to the river. This resulted in the embankment encroaching into the river, causing erosion problems on the opposite bank belonging…

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Papworth Reedbed
Solution

Papworth Reedbeds

After a competitive bid process, Salix designed and built a tertiary treatment reedbed for Anglian Water at their Papworth STW. Salix partnered with Pete Worrall of Penny Anderson Associates and…

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Solution

Salwarpe Reedbed

As part of a new large reedbed creation project Salix contract grew and planted out 125,000 reed plants grown from local provenance seed stock. Seed was hand collected and processed…

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Solution

Twycross Zoo Wetlands

As Principle contractor, Salix constructed a 3 hectare wetland system to provide waste water treatment and habitat creation. 18 integrated ponds, wet grassland, reedbeds and ditches were constructed for Twycross…

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Solution

Pembroke Commons

1 km of new and existing channel was enhanced using bioengineering techniques as part of a flood protection project in the centre of historic Pembroke in West Wales.

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Solution

River Pinn Enhancement

Salix designed and constructed a stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project.

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Solution

River Thaw Enhancement

Salix were asked by Environment Agency Wales to advise on methods to restore a 100 metre reach of the River Thaw which had been subject to physical degradation by overgrazing…

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Solution

Conwy Flood Alleviation and Spillway Scheme

Salix supplied 9000m2 of VMax3 Shear stress turf in September 2009. Just 2 months later the area experienced the worst flooding in 25 years of recording with floods exceeding the…

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Solution

River Ebbw Bank Stabilisation

Salix worked with consulting geotechnical engineers to provide design and build proposals to stabilise over 800 metres of steep riverbank composed of highly erodible colliery shale.

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Fully Established Bioengineering Solution Replacing Gabion Design
Solution

River Gwenfro

A private developer had back gardens adjacent to a river that when in flood created severe scour issues. Initial river modelling indicated flow velocities in excess of 3.5m/sec.

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Solution

River Pipeline Crossing

Salix were invited to submit a bioengineering solution to solve an erosion issue at a pipeline crossing in West Wales. The solution used a combination of locally harvested willow and…

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Solution

River Roding Bank Protection

Salix advised engineers Halcrow on bioengineering methods to stabilise a regraded slope as part of an inter-tidal river enhancement project. The existing vertical retaining wall provided no habitat value.

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Solution

River Roding Enhancement

The River Roding is an inter-tidal river and these works were undertaken 100m upstream of the Barking Barrier, Greater London. The works were part of an Environment Agency environmental enhancement…

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Solution

Dan Y Lan Landfill Slip

The finished slope was 36 degrees, 40 metres in height and 60m wide. 250mm depth of topsoil was required, rather than the nominal 50-75mm, as cover for marginally contaminated on…

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Solution

Calverton Tip Drainage

Colliery shale and sandy soils have one thing in common; both are highly susceptible to erosion by flowing water. Both soil types were present on site.

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