Boskalis takes part in Rhos on Sea coastal defence project

Conwy County Borough Council has just announced that work is underway on Rhos on Sea’s new coastal defences which include a new rock groyne structure and adding sand to the beach.

According to the Council, the beach height will be increased by about 5 metres at the seawall with approximately 1 million tonnes of imported gold sand pumped on to the beach via offshore dredging.

A Conwy County Borough Council spokesperson said: “This sea defence work is essential to protect Rhos on Sea in the future. We’re importing the sand during the summer months because the work requires calm seas and we have to avoid the overwintering birds season.”

The first stage of the work is now almost complete on the beach near Colwyn Bay pier, building the 1km pipe which will be used to deposit the new sand onto Rhos beach over the summer.

The new rock groyne will use material from existing rock groyne structures and rock armour, which would otherwise be buried beneath the new beach. Reusing this material reduces the cost of the project as there is no need to import more rock material.

Boskalis Westminster Ltd has been awarded with the dredging part of the project. By using one of their hopper dredgers, the company will take sand from an offshore borrow area in the Irish Sea and deliver it onshore via the pipeline.

The whole project is expected to be completed by Spring 2023.

Photo: Conwy Council