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Salix River and Wetland Services

Salix River & Wetland Services are bioengineering technical specialists, involved in the supply, contract and design elements of river, wetland and coastal projects. Salix has extensive experience working within all river types across the UK, providing innovative vegetated, sustainable solutions for soil erosion and wetland creation.

SUPPLY

Our in-house product range specifically developed for erosion control and habitat creation includes Coir Rolls, Coir Pallets, Rock Rolls, Rock Mattresses, Rock Bags and the world’s highest performing range of Composite Turf Reinforcement Mats – VMax C350 & C500. We also provide hydraulically applied solutions such as TerrAffix. We have the largest native wildflower and wetland plant nursery in the UK. Salix are the only company to manufacture coir rolls and pallets within the UK, providing a massive reduction in carbon.

Salix rock products allow natural sediment accretion and vegetation establishment, unlike harder solutions such as rock armour or gabions.

CONTRACTING

Salix’s contracting division undertake works for local authorities, public bodies, utility companies, main contractors & private clients, having been involved in a diverse range of projects across the UK.

Salix has unrivalled specialist equipment for fluvial environment, including a Mackenzie ‘Muck’ Spider excavator. The Spider has four independent legs, with the ability to access logistically challenging of sites. Salix also has long reach excavators, floating pontoons, hydroseeders and truxor available for a diverse range of specialist fluvial and intertidal activities.

Stroud Sewerage Strategy Project: Part 2 (2023)

The Stroud Sewerage Strategy is a major investment by Severn Trent which is required to overhaul of the existing sewer network by installing almost 3.5km of enlarged sewer pipe, separating surface water from the sewage network, creating additional storage with smart controls to hold stormwater back during large storm events before returning it to the […]

Llyn Bran Discontinuance (2023)

Llyn Bran is located in Denbighshire, north-east Wales and was a natural lake that was raised in 1899 by a concrete dam. The reservoir was used to supply water to the North Wales Hospital in Denbigh. The hospital closed in 1995 and Llyn Bran has not been used for drinking water since. As part of […]

Matchams Riverbank Stabilisation (2022)

Matchams Raw Water Intake is located on a fast-flowing bend on the River Avon. The building was constructed c.1955, and provides a reliable source of raw water to Alderney WTW in Bournemouth. The water depths along the extraction point are typically 3-5m (relative to ‘ordinary’ water levels), with a high river flow rate, circa 3 […]

Clifton Integrated Constructed Wetland (2022)

Clifton Wetlands is a new, integrated constructed wetland (ICW) built at Yorkshire Water’s Clifton Wastewater Treatment Works (WwTW), near Doncaster in South Yorkshire. It is a ground-breaking project that utilises a nature based solution to replace conventional wastewater treatment processes with a natural, sustainable and low-carbon alternative. Yorkshire Water, the Environment Agency, Stantec UK and […]

Southwaite WwTW (2022)

Southwaite is a small rural village in Cumbria about 5 kilometres south of Carlisle. The works treats a population of about 1,000 from the village and the nearby M6 Motorway Services. The existing trickling filter works had reached the end of its asset life and needed to be upgraded. In a first of its kind […]

Severn Trent Eels Regulation Compliance (2021)

The Eels (England and Wales) Regulations 2009 came into force on 15 January 2010 to support the UK in implementing EC Council Regulation (1100/2007). The regulations require all surface water abstractions of more than 20m3/d to be fitted with suitable eel screens by 2021. A batch extension was granted to Severn Trent until end of […]

Hedges Farm River Restoration Project (2020)

The River Ver is a chalk river tributary of the River Colne in Hertfordshire. Chalk rivers are a globally rare habitat, with around 240 existing worldwide. There are approximately 160 chalk streams in England with 10% located within the supply area of Affinity Water. The Environment Agency placed targets (through the Water Industry National Environment Programme) […]

Woodhall Park River Restoration (2020)

The River Beane is a chalk stream that flows through the county of Hertfordshire and is 30.3km in length from its source at Roe Green. As a tributary of the River Lea, it rises to the south-west of Sandon, in the hills northeast of Stevenage, and joins the Lea at Hartham Common in Hertford. Chalk […]

Battlefield Brook Fish Passage (2019)

Battlefield Brook catchment encompasses farmland, Catshill Marsh (which used to be a Site of Importance for Nature Conservation; SINC), urbanised reaches adjacent to the M5 and Sanders Park; a public amenity facility owned by Bromsgrove District Council. The section of the brook through Sanders Park was lined with concrete in the 1960s. Despite its urbanised […]

Manor Road Park River Restoration Project (2019)

Affinity Water (AW) is the largest water-only supply company in the UK, providing on average 900 million litres of water each day to a population of more than 3.6 million people in parts of Bedfordshire, Berkshire, Buckinghamshire, Essex, Hertfordshire, Surrey, the London Boroughs of Harrow and Hillingdon and parts of the London Boroughs of Barnet, […]

Lockwood Reservoir (2018)

Lockwood Reservoir is one of ten Walthamstow reservoirs in north London and makes up part of Walthamstow Wetlands; Europe’s largest urban wetland nature reserve. It is also a Site of Special Scientific Interest (SSSI) and a Special Protected Area (SPA). The Wetlands attract 250,000 visitors a year and is a key site in London for […]

Cambrian RainScape (2017)

The Cambrian catchment has a population of 4,500 and is located in Llanelli, South Wales. The catchment is predominantly served by combined sewers with a combined sewer overflow (CSO) at Cambrian Sewage Pumping Station (SPS). The CSO discharges approximately 52 times per year (54,000m3 per year) into the Loughor Estuary, a designated Shellfish Water. The […]

Grafham WTW Resilience (2016)

Grafham WTW is located near Huntingdon and serves a population of 829,000, including Northampton, Huntingdon and Bedford. It is estimated that approximately 614,000 of these would be affected by a major outage at Grafham WTW. As part of Anglian Water’s AMP5 Final Business Plan programme, the Grafham WTW Resilience scheme was identified to mitigate the […]

Salix's Nursery

Menzi Muck Spider and Rock Mattresses at a Network Rail site

Rock Mattress going in on London reservoir spillway

Rock Mattresses and Menzi Muck Spider protecting gas pipeline

David Holland and River Restoration

River works at Yearl Weir

River Teme