12 City Blocks!

Unless I'm missing something, the "Operations Dock" out in the middle of everyone's view of the Pacific would be 1700 feet in diameter -- that's around 12 city blocks in area! (in addition to the pier)

Huge, yes. Ugly too I'm sure. And definitely wrong for Barra de Potosi.

But yes, I think that you are off a bit on your math.

A typical residential block in Minneapolis measures 660 feet from north to south and 330 feet from east to west. These measurements are from the center of one street to the center of the next. Thus, there are eight north-south blocks or 16 east-west blocks to the mile.

Source: Office of Public Information, City Hall, Minneapolis