No other phase of construction requires as much coordination
and perfect timing as pouring concrete. Here, in the area
where the concrete is being placed, the trick is pump in the
concrete at just the right pace for the crew that spreads and
floats it. On left, the boom pump holds back for a few minutes
while the crew catches up.
The flow rate and the position of the giant arm of the boom pump
are radio controlled by this man, standing right in the
The more accurately that concrete can be placed from the boom
pump, the less work that the finishing crew has to do.
This man, using a float to finish an area of concrete, would
be several feet under the ocean if the cofferdam were
not holding back the tides.
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