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Lake Illawarra
Entrance Works
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Thumbnail gallery - Lake Illawarra Entrance Works

(Page 3)
 

Photos taken around 7-13 July 2006:

(Left to right) [1] The famous surf break of Windang Island in full cry early July 2006. All surf breaks in the area of the entrance works will not be affected by construction activities, save for likely substantial enhancement of sand bars along both Perkins and Warilla beaches. It has been well documented that both breakwaters and shifting sands work to dramatically improve surfing venues. [2] A grader gets amongst the action after the excavators have cleared much of the initial sand volume. [3] Large tonnages of sand are in the first instance being taken further up Perkins Beach, some of which will be re-laid over the northern breakwater boulders once positioned. [4] Naturally the northern breakwater trench is filling with water as it deepens and takes shape.

(Left to right) [1] The northern breakwater trench after much of the initial sand has been removed. We can see that basalt boulders will be carefully placed along the canal all the way into the sea. Removed sand will then be placed back over some of the land-locked boulders. [2] A sturdy work-horse truck that has been steadfastly shifting massive volumes of sand. [3] 'New' mini-water courses are forming as work proceeds. Naturally water within the northern breakwater trench is running both to and from nearby lake entrance flows. [4] The lake entrance water right next to the northern breakwater works remains absolutely pristine.

(Left to right) [1] The commencement of placing the basalt boulders for the northern breakwater. [2] The excavator doesn't just pile the boulders together, they are painstakingly placed one-by-one so they won't dramatically shift in future. [3] If you think such work might be tedious, imagine what it's like for the excavator operators. [4] Nevertheless, the top professionals working for Coast Wide Civil are so experienced that work proceeds rapidly.

(Left to right) [1] Once placed in similar fashion to a jigsaw puzzle, the boulders are patted-down via the serious muscle of the excavator.
[2] The pipe running from the de-watering pump which steadfastly pumps the water out of the excavated channel. It should be remembered the work is being carried out below lake- and sea-level (or near to it). To be able to see what they are doing, the construction workers need to constantly pump out the water seeping through the sand via a large diesel-powered pump.

 


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