Robuta

https://www.english-heritage.org.uk/learn/story-of-england/romans/roman-coastal-defences/
In the 3rd century AD, a number of Roman forts were built along the Channel coasts of east and south-east England and northern Gaul. Discover what we know...
the saxon shorecoastal defencesenglish heritageroman
https://www.lbc.co.uk/article/coastal-road-washes-away-after-sea-defences-damaged-by-storms-5HjdRpM_2/
A 200-metre section of a coastal road in a south coast beauty spot has washed away after being hit by storms.
coastal roadsea defenceswashesawaydamaged