Bath and North East Somerset

Cost Neutral Surveying


  • Drainage | Gully


  • Surveying
The Problem

Budget cuts impact gully cleaning service

Budget cuts meant that the gully cleaning service needed reviewing to minimise the impact of these cuts on the public.

Like other authorities, in recent years Bath & North East Somerset (BathNES) have faced budget cuts. The gully cleaning service was reviewed to minimise the impact of these cuts on the public. BathNES knew there were gullies on the network that didn’t need cleaning but without having a long history of silt level and condition data, they were not confident in making blind cuts to the service without inspection.

Our Approach

Identifying zones for targeted surveys

KaarbonTech systems identified zones that were more likely to have a lower percentage of gullies needing to be cleaned.

BathNES used Gully SMART to identify zones that were most likely to have a higher percentage of gullies not requiring a clean. KaarbonTech were instructed to complete a condition and silt level survey of those areas over a 6-week period.

The Result

Cost savings achieved through targeted surveys

The financial saving made by removing unnecessary cleaning of identified gullies paid for the survey and saved maintenance costs.

The speed of the survey allowed decisions to be made much more quickly than normal. Survey inspections were stored along with cleans and repairs in the asset history. All of the gullies surveyed had been removed from the maintenance regime for that year so inspecting them reduced the risk of flooding. The results supported the decision as 95% of gullies had silt levels of 50% and lower. The financial saving made from removing these gullies, paid for the survey and additionally saved considerable maintenance costs.


We identified and addressed 79 potentially hazardous gullies with unsafe lids during the survey.

Leigh Harris, Project Manager, KaarbonTech,

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