Our contract at South Milton Sands, Devon, was part of the National Trust’s “Shifting Shores” project along Britain’s coast line. It involved removing the existing car park and restoring the original sand dunes, improving public access to the beach, removing and replacing timber piling and the creation of a new car park. The new works preserve the unspoiled character and natural beauty of the area and enable the National Trust to manage the site in a sustainable way for the long term, therefore enhancing the natural conservation value of the area, and controlling erosion.
This site is located in an Area of Outstanding Natural Beauty, therefore existing vegetation also had to be preserved. We were able to use our specialist turf translocation equipment to ensure this took place.
River bank erosion at a location in rural Devon required remedial action. We worked closely with the Westcountry Rivers Trust, the Environment Agency and the local landowner to decide on the best course of action. We were able to select and use timber from trees on site to complete the revetment works. The adaptability of our machinery was put to good use in excavating the bank, completing the revetment works and installing the rock armour, which was used for extra protection.
This project was completed on time and within budget, to the satisfaction of all agencies involved.
Some stretches of the Devon coastline are inaccessible for machinery. This was the case at the location of this erosion control project in South Devon. The only option was to lift the rock armour into position a piece at a time – some of the pieces of rock were in excess of 6 tonnes. Due to the nature of the site, detailed surveys had to be carried out prior to the work commencing to ensure that the ground conditions of the cliff would be able to carry the weight of the crane. The machine we used to move the rock into position on the beach had to be lowered down the cliff by crane. It was lifted in and out daily due to the tidal range.
Landmarc were approached to assist a client in creating an innovative solution to a seemingly impossible problem. The client needed the cliff below his land strengthened with concrete and rock armour so he could build the house of his dreams. The only land access for an excavator was a flight of stone steps. Landmarc were able to hire a landing craft to carry the 22 ton excavator and land it on the beach. At high tide the beach disappeared so we built a platform from existing rocks so the excavator could sit above high tide level. Work was carried out at mid – low tide, whether night or day.
Rock armour was then built up at the base of the cliff and concrete was pumped into the cavities.
Over the years Landmarc have been involved in many aspects of erosion control. Here is an example of rock armour around a new bridge to protect the bridge piers at time of flooding. Rock armour can also be used to prevent erosion in stream and riverbed areas than can be prone to flooding.