Our earthworks team were out on the road immediately after the Kaikoura earthquake helping shift the landslips.
Mike Edridge Contracting is a member of the NZ Heavy Haulage Association
Creation of a sub-division at Fish Bay in the Kenepuru Sounds including site clearance and development of roading including culvert crossings, pavement prep of roads and entranceways into sections and trenching for power cables.
Site drainage, manhole installation, dish channelling, and approx. 4500 cubic meters of earthworks to achieve the required slope re-profiling recommended following a geotechnical assessment.
The reason for the work is that the existing cut slope adjacent to the reservoir needed to be modified to approximately 45° to improve the factor of safety for slope stability for seismic conditions.
A 20 ton excavator fitted with GPS grade control was used to create a 4m wide bench midway up the slope with batters laid back at 50 deg.
Creation of a 60,000 cubic metre capacity irrigation reservoir involving stripping 8,000 cubic metres of topsoil from the footprint of the reservoir, excavating 28,00 cubic metres of fill and using this to create the embankments, installation of 930m of embankment and sub-liner drainage, preparation of the dam surface to leave a smooth surface for the installation of the 1.5mm thick HDPE dam liner (completed by IS Dam Linings), finished off by topsoiling and re-grassing the exposed embankments.