Attenuation is the process of storing water on a site and slowly releasing it in a controlled way, either into the ground, to a surface water drain or a watercourse. This reduces how fast rainfall runs off a site, thereby reducing flood risk.

An area of land where surface water from rain, melting snow or ice converges to a single point at a lower elevation, usually a watercourse.

A high-level planning strategy through which the Environment Agency works with their key decision makers within a river catchment to identify and agree policies to secure the long-term sustainable management of flood risk.

Where it is reasonable to assume that the affected properties were flooded from the same source, or interaction of sources, of flooding.

Use this map to see which communities in Northamptonshire have developed a Community Emergency Plan. Please contact jmaddams@northamptonshire.gov.uk for more information.

Those infrastructure assets (physical or electronic) that are vital to the continued delivery and integrity of essential national services, the loss or compromise of which would lead to severe economic or social consequences, or to loss of life.

A culvert is a structure or pipe that allows water to flow underground in order to avoid an obstruction, such as a road or railway. Historically, culverts have even been used to divert watercourses under new housing developments. Culverts can take a number of forms, such as plastic pipes, brick-lined tunnels or concrete structures, and may be used to form […]

Designation is a form of legal protection reserved for key structures or features that are privately owned and maintained and that contribute to the management of flood risk. The aim of designation is to ensure that the owners do not inadvertently alter these structures and potentially increase flood risk to themselves, their neighbours and the wider community. A designation is a legally […]

Flood Assets are any structures or features that could have an effect on flood risk. These could be pumping stations, flood defence banks and walls, weirs, culverts and pipes, ditches and drains.

Use this map to see the location of flood risk assets throughout Northamptonshire. Flood Assets are any structures or features that could have an effect on flood risk. These could be pumping stations, flood defence banks and walls, weirs, culverts and pipes, ditches and drains.