Attenuation Tank

The construction of a 5800m3 attenuation tank wrapped in 1mm LLDPE and cited within a public open space.

The tank was connected to the existing surface water system by 1800mm diameter concrete pipes and 2700mm diameter concrete manholes with a hydrobrake fitted to the downstream end.

A bulk excavation of approximately 12,000m3 to formation was required prior to installing the tank on a gravel bed interspersed with 150mm dia relief drains.

The tank assembly was inspected regularly by the manufacturer and the adopting authority to ensure compliance to the installation procedures. The LLDPE wrapping was vacuum tested for leaks, prior to the whole tank being very carefully backfilled with suitably selected excavated arisings.

CLIENT
Redrow Homes NW Ltd
REFERENCE CONTACT
White Young Green
CONTRACT VALUE
£380K
CONTRACT DETAILS
Construction of a 5800m3 attenuation tank with interconnecting inflow and outflow large diameter concrete pipes Tank wrapped in 1mm LLDPE and buried 3m beneath a public open space

What Our Clients Say

I have arrived on the Ulverston site for PM Group as a Health & Safety Advisor, in building 11. Last Thursday I had an issue, that was not getting sorted for me, I was close to going for lots of beers. For one reason or another the DXI Lads came to me and said they would take care of it for me.

It wasn’t a small job by any means, it completely took me back, that it wasn’t even their job to do, the flexibility they showed and willingness to help, with a smile on their face I might add.

Alan Stewart

Health & Safety Manager, PM Group

Attenuation Tank