The changes we are making are like for like and won’t negatively impact on current drainage systems. Southern Water have not requested additional intervention, but we are installing additional gullies along Beach Road, which will assist with the flow of surface water. It won’t change the capacity of the sewers – we are simply diverting under crossing points.
So the new gullies can be installed, Beach Road will be closed to traffic for about three weeks from mid-September. The closure is essential to install new drainage gullies and connect to the sewer located deep in the middle of the road. You can view the drainage works locations on this map [PNG] 309KB. The southern end of Beach Road will have to be closed from the Arcade Road junction to the War Memorial roundabout. Traffic diversions will be in place – download the Traffic Management Plan [pdf] 408KB. All shops will remain open during this time with nearby parking available in Manor House.
To compensate for the temporary loss of parking bays on the closed section of Beach Road, alterations to Manor House car park will be made so deliveries can continue to be made to shops. The allocated reserved spaces for Arun District Council employees will be suspended to provide additional parking for customers during the temporary closure.
The flood in 2018 classed as a 1 in 60 year event, having significant impact, as the sewers are only capable of dealing with a 1 in 30 year event, so when considerably more water enters the system, there is nowhere for it to go. The area is zoned at a Flood Risk Zone 3 – being one of the highest at risk of flooding – nothing that we are doing impacts this or the amount of water entering the sewers.
We are in no position to insist Southern Water upgrade their sewers because we aren’t doing anything that negatively impacts their network.