*** Covid-19 Update ***

Stonbury are immensely proud to be supporting our clients across the UK at such a crucial time and have been designated as 'key workers' by DEFRA and the UK water utility companies. Our teams are working tirelessly to help secure and maintain drinking water supplies, ensuring clean and safe drinking water is provided without interruption to critical services such as our hospitals as well as the general public. Now more than ever, the safety and wellbeing of our staff is of the utmost importance and we have adapted our safe working practices to ensure social distancing precautions are in place and that the correct hygiene practices are being followed. Safety is our priority, and we endeavour to make sure everyone at Stonbury goes home safe to their family.

// Impounding Reservoir

This section of sandstone masonry was reported to have ‘significant’ leaks with water passing down and under the sandstone masonry and exiting down stream at the next section.

Drawings and investigations determined that the sandstone blocks upstream and downstream of this section, were bedded in most locations on a 300mm thick concrete slab, whilst this section had been bedded directly on to the puddle clay core.

It was decided that this section of sandstone blocks be lifted and that 300mm depth of puddle clay be removed, to include a 500mm deep central ‘toe’, and replaced with a new re-inforced concrete slab.

After completion of this work, the sandstone blocks were bedded back in their original positions, to include some new replacements, and re-pointed.

This work was undertaken during August when the reservoir was at a natural low level.

Download a PDF of this project