Longham Lakes - Salix Solutions

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.

Rock Roll Protection To Face Of Coir Rolls

Translocating Reeds

4 Reservoir Shoreline One Year Later With Excellent Reed Growth

Mature Reed Growth Protected By Rock Roll

Longham Lakes

Rock Roll Protection To Face Of Coir Rolls

Translocating Reeds

Reservoir Shoreline One Year Later With Excellent Reed Growth

Mature Reed Growth Protected By Rock Roll

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.

Longham Lakes Reservoir was created following sand and gravel abstraction. The restoration plan required that the shoreline of the new reservoir be stabilised with bioengineering techniques to create a reed fringe around the shoreline.

Salix were appointed as the Main Contractor to undertake this project, working directly for Bourne & West Hants Water.

Existing reedbed areas were mechanically translocated, relocating the reed turfs from the bed of the reservoir to the new margins.

A line of Rock Rolls were installed on the windward side of the reservoir shoreline to protect the plants and Coir Rolls from the constant wave action.

Mature pre-established coir rolls were used to establish a diverse range of species in sheltered areas, with Common Reed (Phragmites australis) used on the more exposed shores.

Products Used

Selection Of Unplanted and Pre-Established 200mm and 300mm Coir Rolls

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 water bodies.

Rock rolls provide an instant flexible solution to many scour problems

Pre-filled Rock Roll

Rock Rolls are a robust and permanent revetment for use around reservoirs, shorelines, lake edges, streams and river banks. They are cost-effective revetments that are suitable alternatives to rock rip rap and gabions in many scour applications.

Details

Client: Bournemouth & West Hants Water
Location: Nr Bournemouth
Reedbeds & Wetlands, Reservoirs, Lakes & Shorelines

Cross Sections

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HydraCX gave an immediate impression the embankment was grassed, making it more visually pleasing to our travelling customers. The rapidity of grass growth was exceptional and it added additional strength to the slope surface.

Network Rail

We have worked with Salix on a number of projects throughout East Anglia over the last 6 years, and we have always found them to be highly professional and competent. We have used their services as suppliers of quality wetland plants, with a traceable provenance, and as contractors to both supply and plant the wetland plants. In addition we have always relied on the technical advice and knowledge of David Holland, in particular, to help answer queries from our clients regarding wetland planting schemes we have been involved in, this is an added value part of their service, for which we are grateful.

UPM Tilhill

We invited Salix to re-landscape the watercourse through a design and build project. The works to the watercourse were completed within two weeks of starting on site and, despite a number of prolonged heavy rain events both during and after the works, the pre-established coir rolls and pallets all began putting on new growth within a matter of days providing the watercourse with instant channel vegetation and protection to the toe of the banks. The VMax reinforcement used to stabilise the slopes has also prevented any erosion to the sandy soil beneath and has allowed the rapid establishment of grass which wouldn’t have otherwise been possible.

South Ribble Council

Atkins has worked with Salix on a number of projects, collaborating on design concept, trialling and implementation. We have found their experience valuable in delivering cost effective and environmentally functional solutions.

Atkins

Your staff are always friendly, knowledgeable and helpful and we have always been pleased with the service and the quality of the wetland plants and planting services. Technical knowledge on erosion control is also excellent. Keep up the good work!

Living Water Ecosystems Ltd

We used HydraCX for the first time on a Network Rail project in Chipping Campden. We wanted to establish vegetation growth as quickly as possible on a slope with poor ground conditions without the need for importing topsoil due to possession time constraints. HydraCX provided an excellent growing medium for rapid germination.

Carillion Rail

Excellent overall performance – very approachable and offered a good sustainable solutions to rectify a significant erosion scour to the river foreshore without comprising the existing flood defence. Carried out work to agreed timescale and budget. Certainly would value their future input.

Environment Agency, Leeds