Some of the causes of reservoir flooding include improper maintenance, a leak or crack in the dam or embankment structure, a landslip down the embankment of a dam and slope instability. Reservoir flooding is very unlikely to happen, but in the rare chance that it does, it may happen with little or no warning and can cause major damage. To report any blockages, flooding or pollution incidents, visit the GOV.UK website here or call their incident hotline on 0800 80 70 60.ĭownload our ‘Influences on coastal flooding’ resource here. The Environment Agency is responsible for managing flood risk from main rivers and for the strategic overview of all flooding and coastal erosion management. Even a small rise in sea levels may be enough to cause flooding in these areas. Flooding may be more likely on developed land that has been reclaimed from the sea via coastal management. Coastal erosion causes the coastline to retreat inland, increasing the risk of coastal flooding and the potential loss of land.Ĭlimate change is causing rising sea levels of around 4mm per year, which may contribute to flooding as not only does it make low lying land more vulnerable but it gives storm surges a higher starting point. In the North West, this is United Utilities, to report sewer flooding call 03456 723 723, to report a leak or a burst water main call 0800 33 00 33, for blocked drains visit their website here, or visit this webpage for more information.įACT: More than 3,000 homes are flooded in the UK every year because of fat, oil and grease (FOG) blockages and fatbergs – Southern Water.Ĭoastal flooding has a variety of causes but most commonly occurs from storm surges where high storm winds and low pressure push sea water towards the coast, creating large waves that are likely to overtop coastal defences. Water and sewerage companies are responsible for managing the risk of flooding from public sewers and utility pipes. ![]() Check out our resource on ‘Sewers, Blockages and Flooding,’ here for more information. It is important that only the 3 P’s are flushed down the toilet (paper, pee and poo), any other unsuitable items or fat, oil and grease (FOG) can lead to blockages and flooding. It can be dangerous as contaminated sewage may end up in properties or rivers. Heavy rainfall can also contribute to overloading the sewerage system, especially when there are blockages. Sewer flooding incidents usually happen as a result of blockages caused by the misuse of the sewerage system, for example by flushing unsuitable items down the toilet. ![]() ![]() In the UK, over 3 million properties are at risk from surface water flooding, compared to 2.7 million at risk from rivers and the sea. You can also find out who your LLFA is by entering your postcode on the Environment Agency’s ‘Long Term Flood Risk Information service’ here.įACT: Surface water flooding threatens more people and properties than any other form of flood risk. You should report this type of flooding to your LLFA which will either be the District Council, provided it is a Unitary Authority, or the County Council. ![]() The Lead Local Flood Authority (LLFA) is responsible for managing the risk of flooding from surface water and producing local flood risk management strategies, as well as investigating and producing a Section 19 report for flooding incidents when deemed necessary. This type of flooding can be worsened by blocked road gullies, sewers, and drains, as well as saturated land and increased hard surfaces. Pluvial flooding, also referred to as surface water flooding, happens when the amount of rainfall exceeds the drainage capacity of surface water sewers and drains, causing water to accumulate on land instead of being absorbed.
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