Project Gallery
Project Gallery | Leeston North Stormwater Wetlands
Leeston North Stormwater Wetlands
The project was to build a stormwater retention basin for Selwyn District Council to cater for the needs of a new subdivision. The specification was to build a series of four ponds, three shallow ones and a settling pond. The larger settling pond was deeper and lined with a clay liner.
The contract was located in an area with a high water table due to the time of year (winter). Following the main dig out, dewatering was required prior to the clay liner being laid and rolled to maintain ideal conditions. As there were waterways in close proximity to the working zone , extra care was taken so as not to avoid contamination.
A concrete headwall was required at the outlet. We looked at the options available and decided that manufacturing the headwall off site made for a cost and time effective solution as the alternative was to box and pour the headwall on site.
The project had visibilty from the immediate neighbours, so it was important to plant aesthetically pleasing groups of plants and to disturb the surrounding areas of grass as little as possible to keep the site tidy at all times.
Murray England, Engineer, Selwyn District Council
Dear Ivan, please accept this letter as confirmation that myself and Selwyn District Council are happy with the job at Leeston Wetlands. Blakely Construction performed as per the contract construction and the job was completed on time before the wet season. At no time were the resource consents breached nor the neighbours disturbed. The finish at the site was of a high standard and Blakely Construction performed above our expectations.
Leeston North Stormwater Wetlands
The project was to build a stormwater retention basin for Selwyn District Council to cater for the needs of a new subdivision. The specification was to build a series of four ponds, three shallow ones and a settling pond. The larger settling pond was deeper and lined with a clay liner.
The contract was located in an area with a high water table due to the time of year (winter). Following the main dig out, dewatering was required prior to the clay liner being laid and rolled to maintain ideal conditions. As there were waterways in close proximity to the working zone , extra care was taken so as not to avoid contamination.
A concrete headwall was required at the outlet. We looked at the options available and decided that manufacturing the headwall off site made for a cost and time effective solution as the alternative was to box and pour the headwall on site.
The project had visibilty from the immediate neighbours, so it was important to plant aesthetically pleasing groups of plants and to disturb the surrounding areas of grass as little as possible to keep the site tidy at all times.