What is the bedrock of the Netherlands, geologically speaking? Pumps, dikes, and the like won't help that much in Miami because the porous limestone underlying the city allows water under and around these traditional methods.
Non existing. Basically every building in Holland is build on 'stilts'. 40-100 feet long beams of wood or concrete that reach through the 'bog' surface until it reaches a stable layer of sand.
See https://youtu.be/5GEGWP95HFw?t=2m0s for an example of how those stilts are placed. Note that until 2:30 it's basically just using a big weight. From about 2:40 the machine starts to get serious.
Beyond dikes we've had mills keeping ground water levels steady since at least the 10th century.
