The interaction of physical and human processes on the Holderness Coast

Where Is the Holderness Coast?

The Holderness Coast is a stretch of coastline in East Yorkshire, running for approximately 61 km from Flamborough Head in the north to Spurn Point in the south, where it meets the Humber Estuary.

This coastline is one of the fastest eroding in Europe, with some places retreating by up to 2 metres per year.

Why the Location Matters

The geology, combined with exposure to strong North Sea waves, makes the Holderness Coast especially vulnerable.
The area supports communities, agriculture, tourism, and energy infrastructure, making it a place where the effects of coastal erosion are highly significant both environmentally and economically.
This mix of natural and human factors makes Holderness a textbook example of how coastal landscapes evolve under pressure.

Physical Factors Causing Change

Geology: Much of the coastline is made from boulder clay (glacial till), which is soft and easily eroded. It is also prone to slumping, especially after periods of heavy rain.
Wave Energy: The coastline faces the North Sea, which has a long fetch that allows strong, destructive waves to build up. These waves remove material rapidly.
Narrow Beaches: With less sand to absorb wave energy, the cliffs are more vulnerable to erosion.
Longshore Drift: Material is moved southward along the coast by wave action. In some places, human interference has interrupted this process, causing issues further down the coast.

Human Activity and Management

Several areas along the Holderness Coast have implemented hard engineering strategies to slow down erosion and protect valuable land, infrastructure and communities:

Mappleton

• Protected by two rock groynes and riprap (large boulders).
• This scheme cost £2 million and was designed to protect the B1242 road, which runs close to the cliff edge.
• It successfully created a wider beach north of the defences, but caused increased erosion further south due to disrupted sediment flow.

Hornsea

• Popular tourist destination with wooden groynes, a sea wall, and rock gabions.
• These protect the town centre and promenade, attracting visitors and safeguarding property.

Withernsea

• Sea wall, riprap, and beach nourishment are used to slow cliff retreat and reduce wave power.

Easington Gas Terminal

• 2.25% of the UK’s gas supply passes through here.
• A £4.5 million riprap barrier protects the terminal but not the village itself, raising questions about priorities in protection.

Ongoing Impacts of Change

Increased erosion south of defended areas, such as Great Cowden, where the interruption of longshore drift has reduced natural beach replenishment.
Loss of land and property, including farmland, holiday parks, and historic villages.
Spurn Point, a spit, is under threat due to reduced sediment supply. This has serious consequences for wildlife habitats and coastal ecosystems.
Conflict has emerged between those who benefit from defences and those who suffer the consequences further down the coast.