A £29m project to manage the risk of flooding to people and major industry in north-east Lincolnshire is now underway.

The Environment Agency scheme will see improvements made to 4.5 kilometres of coastal defences along part of the Humber estuary’s south bank. The defences will benefit 2,300 properties, nationally important infrastructure, vital industry, and areas outlined by North East Lincolnshire Council for future development.

This is the third phase of the Stallingborough Sea Defence Improvement Scheme, which has repaired and strengthened sea walls between Immingham and Grimsby in stages over the last 15 years.


Photo: David Pickup


This latest stage of work will see the installation of large rocks called rock armour along 3 kilometres of the seaward side of the flood defence. The rocks will cover from the Middle Drain to the northwest to the New Cut Drain to the southeast. The remaining 1.5 kilometres of defences will be repaired. In addition, the 4 river outfalls will also be repaired and improved to make them more sustainable and resilient to flooding.

The majority of the work will be undertaken over 3 years, with pauses through the winter to reduce ecological impacts to the seaward side of the defence.

Rock armour is one of the most sustainable and low-carbon options available and minimises the potential impact on the area’s internationally important habitats. It will help fortify the walls and prevent the sea undermining them, ensuring they continue to reduce flood risk for at least a further 25 years, taking account of climate change predictions.

The work is expected to generate economic benefits valued at £1.1 billion over the next 25 years.

Stallingborough’s coastal walls were originally built following devastating floods in 1953. They are now at increasing risk of damage from rising sea levels and more frequent storms.

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