Critical Drainage Area reviews

Critical Drainage Area reviews

Critical drainage areas can cover wide areas within both rural and urban environments: villages towns (such this example from Barnstaple in North Nevon) cities (for example London has many including much of Chelsea) They are where man made drainage infrastrure has been identified as at critical risk of failure, resulting in flooding. Such areas can be completely different or similar, to the areas identified by the Environment Agency as at risk of natural watercourse, river and sea flooding.   So how is a Critical Drainage Area...

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Gatwick Airport Radar Tower avoids Christmas 2013 River Mole Flood

Gatwick Airport Radar Tower avoids Christmas 2013 River Mole Flood

The floods at Gatwick Airport around Christmas 2013 in relation to the River Mole caused considerable disruption when an electrical substation flooded. Such disruption to key infrastructure is completely unnecessary if competent Civil Engineering Consultants are employed to assess sites and produce appropriate flood mitigation solutions.  At Wilsham Consulting our Engineers have experience of flood mitigation design for a wide range of clients, from domestic sites to key infrastructure. A good example of this is the NATS Gatwick Airport...

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Floodplains and flood defences

Floodplains and flood defences

The concept of maintaining areas and entire ecosystems where water traditionally has flooded is critical, both to protect the natural habit and provide the natural attenuation from rivers to protect people's homes and businesses. It was a well understood concept and for thousands of years, flood plain land has been protected. Many civilisations around the world have evolved around such flooding, with the Nile in Egypt an excellent example. Such flooding was celebrated due to the renewed fertility of the land. During the last 10...

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Basement construction and groundwater in London advice

Basement construction and groundwater in London advice

Basement construction in London has been a common for the last 300 years. However, the recent escalation in land prices and conservation restrictions regarding works above ground, have increase the desire to install new larger basements. Such large basements are becoming more common, especially around Hampstead, Notting Hill and Chelsea. A central document for consideration in the design of basements is BS8102 – The Code of practice for protection of below ground structures against water from the ground BS8102 covers...

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Water Sensitive Urban Design

Water Sensitive Urban Design

Water Sensitive Urban Design (WSUD) is a term used to describe an engineering led approach to planning and designing towns and cities using an integrated and sustainable approaches to water management. It looks at the water cycle as a whole and how urban environments can best be developed to bring about healthy ecosystems by integrating the whole water cycle. Water Sensitive Urban Design is a land planning and engineering design approach which integrates: surfacewater groundwater wastewater or sewerage and clean water...

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The Water Bill – Upstream Services

The Water Bill – Upstream Services

Reform of the water market – the new UK Water Bill and provision of Upstream Services The purpose of the Water Bill is to help reform the water industry to make it more innovative and responsive to customers and to increase its resilience to natural hazards such as drought and floods. Parliament is now considering the bill which was published on 27 June 2013. Wilsham Consulting has been providing input to the process. Of particular focus is reform of OFWATs role from passive benchmarking to taking a more active role of introducing...

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