Talking about grips, grills, gullies, ditches, and drains

Grips on Red Road, and road gully in left hand corner

Grips on Red Road, and road gully in left hand corner

A useful coincidence occurred last week.

Over the past week, there’s been work to create water run-off ditches in the roadside verges of Red Road [B311] in Lightwater and West End. While Flooding Issues in the Borough was item 5 of the Community Services Scrutiny Committee meeting on Thursday evening.

I understand the reason for the work on Red Road, as any user of the road will also understand [plenty of puddles], though I didn’t know what to call them. At the committee meeting the borough drainage engineer called them grips. So now you know – [See image of them on Red Road].

The drainage engineer’s report to committee described the work done in the borough to reduce the incidence of flooding. Here’s a brief summary of the report,

  • no properties in the borough were reported as flooding over the period of excessive rainfall in December 2013 to February 2014
  • consideration needed of sandbag store in west of borough to assist in groundwater flooding
  • sandbag stocks at Chobham diverted to Runnymede
  • minor issues were noted in the borough, most being attributable to blocked roadside grips and gullies
  • fallen trees, leaves and branches help trap surface water on highways causing localised puddles and some traffic disruption
  • Surrey County Council and the Environment agency regularly clearing debris around grills

The drainage engineer’s ends his report saying,

“The various new and restored attenuation features around the Borough have helped to slow down surface water run-off from some catchment areas and, in-turn, reduce the level of surge flows through villages such as Lightwater and Chobham. The resulting effect of the attenuation work allows properties within the villages to utilise the drainage systems without inundation from the upstream catchments.”

“The attenuation systems also have a demand for constant maintenance to ensure they are kept fully functioning for maximum resilience. Outlet points need to be kept clear to allow systems to drain fully; too much retained water limits the ability for capacities to be re-used and therefore reduces protection to properties downstream.”

I’ve said before Surrey Heath has a resourceful and diligent drainage engineer – long may that be the case. Interestingly he’s soon to commence additional flooding prevention measures for Lightwater and Chobham.

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