Protecting Scarborough Harbour
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The harbour at Scarborough dates back to medieval times and work to protect this area from the sea began as early as 1732 with the construction of the East Pier. Built to provide a first line of coastal defence, this Grade 2 listed structure saw regular repairs between 1882 and 1891 as well as the addition of a 200m long apron of cement and large rubble stones.
Defences were further supplemented in 1898 when construction began on a 1190 metre wall around the base of the Castle to the East Pier. However, hampered by extreme waves and abnormally high tides, the wall and roadway weren't completed until 1908 - around three years after the official finish date. Despite these structures lasting so well, the seas relentless attack means that nearly 100 years later contractors Edmund Nuttall are working on a new project to improve the sea defences. This project is one of Europe's largest coastal protection schemes.
Following a detailed survey carried out as part of Scarborough Borough Council's Coastal Defence Strategy, it was decided that the 2.1km stretch of defences covering East Pier, Castle Headland and the Holms was the area in most need of urgent attention.
Edmund Nuttall were contracted to carry out the construction work which would include retaining piles, a rock blanket, the placing of Accropodes ® and a new one metre high, wave return wall.
One aspect of the works involved the laying of a rock blanket by precisely placing the rocks to predetermined coordinates. Nuttall were already familiar with using Geodimeter and Trimble instruments and it was decided that Trimble Robotic DR200+ direct reflex technology was the answer to accurately position the rocks.
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