00:00Hi my name is Greg McDade, site engineer for Northstone. We're here on the current
00:04strand or commonly known as the White Rocks Beach, Portrush. Behind me here is
00:09the coastal defense scheme that we carried out for Royal Portrush Golf Club.
00:13It was basically an extension of the existing revetment which was about 90
00:18meters long. We extended it by a further 20 meters. The reason for this was to
00:22protect the sixth tee of the golf club where the next big storm had the
00:28potential to wash away the sand dunes, undermine the tee box and it would have
00:32been washed away, would have been lost. They employed us to extend the
00:36revetment. Basically we excavated down to firm ground to formation level. We put in
00:43some relatively small basalt. We followed that up with larger basalt which ranged
00:49from one ton to three ton and then we topped it out with limestone from our
00:53Carmine quarry and that raised in size from three ton to six ton stone. The sand
00:58that we excavated from the beach, we infilled it around the the voids just
01:04so that quite a lot of people would walk clamber over the stones. It was just to
01:08avoid anybody having any injuries. The challenges that we had on the scheme
01:12would have been obviously when you're working on a beach you've got the tide.
01:15The tide was the biggest issue that we had. We programmed it in such a way we
01:20had a fairly tight window where the tide was going out in the morning and
01:24wasn't coming back in again until the afternoon which gave us enough time to
01:28get our work done on the beach. There were a few mornings that we arrived down
01:31where the tide hadn't gone far enough out when we arrived and we had to wait
01:36but it meant that we could work a wee bit later in the afternoon because the
01:40tide wasn't coming back in then. The other major condition on this was we had
01:45to be out of the scheme by the start of March for nesting season because
01:49there are quite a few nesting birds in the sand dunes. We managed to get the job
01:54done before nesting season started. Client were happy and there was as
01:59little disruption on the beach as possible. Members of the public were
02:02quite curious but we had no complaints from anyone. In fact some people were
02:07wondering had we actually started the work because the white rocks that we
02:11were using matched the white rocks that were already there. Overall turned out a
02:17job well done between Northstone and the client. Everyone was happy. Members of
02:20the public are also happy because they've got a gulf force that is going
02:23to remain intact. It's a big driver for the local economy in Port Rush. I would just
02:28like to pass on my thanks to everyone that was involved in handing over a
02:32successful coastal defence scheme for Northstone.
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