🛠️ Invention or technique

Polder drainage system with windmill chains

Pólder con diques, molinos de drenaje en cadena y esclusas

Date
1533-1612 · confidence high
Place
Beemster, North Holland, Netherlands
Credited to
Jan Adriaanszoon Leeghwater and Jan Adriaenszoon; Amsterdam investors
People
👤 Jan Adriaanszoon1575–1650
Field
Tools

What it is

A system of perimeter dikes, a ring canal and stepped batteries of windmills that drained whole lakes, such as the Beemster (1612, 7,000 ha). Hydraulic engineering that manufactured land and created Dutch rural capitalist society.

Medieval drainage came earlier; the novelty lay in the scale, the share-based financing, and the chain of stepped mills.

What it led to

  • The gain of farmland financed by urban capital
  • Water boards (waterschappen) as local technical government
  • Exported hydraulic engineering (the English Fens, Vermuyden)
  • A rational landscape and intensive agriculture
🕸️ View in the graph

Built on

  • Drainage windmill (wipmolen, 15th century)
  • Earthen dyke and sluice
  • Bucket wheel (noria)

Made possible

Links