Preliminary Draft – Drainage
As early as 1961, a drainage system was presented in the Preliminary Draft, which was to be further developed in the execution plan [i].
Three subsystems were defined, using different techniques according to the characteristics of the area they drained:
– Drainage system in a “blind trench”, under the peripheral circulation.
– Piped drainage system under the areas to the east and south that correspond to the areas defined as the Park, and under part of the protected area to the northeast.
– Groundwater drainage system on the roof of the parking lot.
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