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Hopton-on-Sea cliffs

 

8 April 2010

 

 

 

North Norfolk and Happisburgh Index

 

Access to the sea at Hopton was along Beach Road, and from this you emerge on to a greensward and a ramp to the beach. This is classic longshore drift and groyne territory, with the harbour entrance to Yarmouth in the background.

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The beach is backed by a sea wall of  sheet piling and concrete walkway, with a sloped concrete glacis above. This is currently being repaired, the gaps being filled by a flexible plastic O-tube and then filled in with a grey mastic.

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To save time I climbed the cliff path, one that was little more damp then expected, so the clay made it interesting. the need to do this was due to the promenade being closed for repairs. On the right is the southern access to the promenade, being used by anglers.

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Walking southwards one comes across a mobile home park, behind a 60 metre greensward. As the cliffs recede regularly in this area it is only wise to have your viewpoint mobile!

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Here the sea wall and heavy fixed defences are gone, with just the failing revetments to provide a modicum of protection. Inevitably, cliff recession processes are active and recession rates high.

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Last season's pathway is about to disappear down a cliff of crag and boulder clay (the clay I discovered on the cliff climb!). The beach has been effectively blocked by a mass of rip-rap behind the disintegrating revetments.

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The 100 metre section of old and new rip-rap, with slumping cliffs in the foreground not having the benefit of the rock armour.

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Views to the north of the active cliff line and, on the right, a summary shot of the defences and their state of repair.

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The blocked beach and the rip-rap boulder field, and then the start of the revetments.

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Returning northwards to the road access, one could see the cliff constituents more clearly, centre, with its till and crag. A large gully has developed into the greensward and has been partially infilled with debris in an attempt to limit its incursion into a gold course!

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Views towards Great Yarmouth and the entrance to its harbour, on the skyline. The idealised models of beaches under the influence of longshore drift, as revealed by the groynes, shows a northward march of sediments in this cell.

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The wind farm off Caister.

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A few final shots, with the wind turbine in Yarmouth and the construction of a massive new building on the harbour entrance dominating the scene.

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Pakefield    

A brief stop-off to see what the coast was like at Pakefield.

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Suffolk Norfolk Great Yarmouth Lowestoft Hopton-on-sea Pakefield coasts cliffs erosion beaches groynes clay sand defences maintenance rip-rap rock armour mobile slides slumps  tourism caravans wind farms offshore concrete blocks

 

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