CivilPlus was engaged to carry out investigation work at the Giru Weir for Sunwater to confirm the condition of the existing Row 1 sheet piles 1.2m below the concrete rockfill surface for its suitability to support future planned works.
Project Features:
Built up a sand access track over the Giru Weir concrete apron by placing sand borrowed from downstream of sheet pile row 4 and placed over the exposed rocks to allow better access for the machinery and crew.
Excavated five (5) test locations on the downstream side of the Row 1 sheet pile to a maximum depth of 1.2m to carry out both visual inspection and no-destructive thickness testing of the sheet pile at each test location.
Backfilled the 5 test locations with concrete and placing rock on the finished concrete surface to match what is on site.
The sand access track was removed and placed back where it was originally taken from which was from downstream of sheet pile Row 4.