Flooding due to inadquate drainage
Reported via desktop anonymously at 14:49, Friday 13 August 2021
Sent to Lambeth Borough Council less than a minute later
There has been flooding on Poplar Walk Passage and Hinton street due to the recent rainfall. This is a regular occurrence during intense rainfall however, the situation has now worsened to such an extent that we are finding mould in the basement when it rains heavily. Furthermore there is a great risk to public health as road users cannot see the pavement surface when it is inundated with flood water.
My understanding is that the flooding is due to an inadequate number and location of gullies, as well as the existing gullies not being maintained. The existing gullies are filled with debris, silt, and leaves which has rendered them redundant.
The London Borough of Lambeth is the Local Highway Authority and have a statutory obligation to maintain the drains. The London Borough of Lambeth is also the Lead Local Flood Authority under the Flood and Water Management Act 2010 and have a statutory obligation to reduce the risk of flooding from surface water and groundwater.
Having reviewed the London Borough of Lambeth’s SWMP and SFRA I understand that this is not an area of historical flooding, nor is it an area particularly susceptible to flooding. Therefore, I kindly ask the London Borough of Lambeth take the following steps to ensure this problem is not allowed to escalate. 1. Clean all the existing gullies of all debris and silt. 2. Jet wash all the existing gullies drainage runs to ensure that there is not flooding due to sewer blockages. 3. Install a new gully in Poplar Walk Passage to ensure that the surface water can drain.
It is noted in the NPPF, EA guide for FRA’S, London Plan, and Lambeth’s Local Plan that extreme rainfall events are increasingly likely to occur due to climate change. Therefore it is prudent to solve this flooding issue now before it causes any economic, physical or mental health issues.
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