River Dargle Flood Defence Scheme.
These images were taken during the first week of September, 2016.
Constant traffic nowadays with hard material being trucked in and dumped in storage areas along The Slang/Rehills section of the river bank.
Further work is now being undertaken to upgrade the protection of the riverbank edge with the laying down of extra stone material.
Work has finished on the construction of the ‘debris trap’ in the river bed, opposite the Rivervale Apartments complex. This work was begun a few years ago, and halted with the creation of a pit, and the placement of (what I like to call) the 8 Dargle Dolmen stones (upright pillars) – 4 of which are immediately visible to the eye.
The ‘Debris Trap’ consists of 12 concrete elliptical shaped columns approximately 1.6m (5ft) high spaced 0.5m apart across the river channel — essential for trapping any trees or other objects which may flow down the river in flood conditions.
To create proper foundations for the columns, the guys had to drive steel piles deep into the bed of the river. Similar to work done elsewhere. Within that waterproof chamber, they set/poured concrete to build the columns.
That pile driving work here involved a sub-contractor using an excavator-mounted vibratory pile driver – possibly a ‘Movax’ model. That’s the combination they used in 2014 with the work opposite La Vallee.
Posted by O Suave Gigante on 2016-09-29 17:03:55
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