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Polder

Zuiderzee Enclosure Dam
Society: ASCEMain Category: CivilSub Category: DamsEra: 1920-1929DateCreated: 1927-1932ZuiderzeeZaandamState: North HollandCountry: NetherlandsWebsite: http://www.asce.org/Project/Zuiderzee-Enclosure-DamCreator: Lely, Cornelis

The first Zuiderzee Enclosure Dam ran from North Holland to the island of Wieringen, successfully barring the sea for over 50 years and protecting a large area north of Amsterdam. The total Zuiderzee project was the largest land reclamation effort in the Netherlands, developed over a period of about 80 years, beginning in 1918 and reaching completion in 1996. The huge dyke/dam was considered one of the greatest engineering feats of its time.

YearAdded:
1986
Image Credit: Public Domain (Copyright Exp.)Image Caption: Zuiderzee Enclosure DamEra_date_from: 1927
Cruquius Pumping Station
Society: ASMEMain Category: MechanicalSub Category: PumpingEra: 1840-1849DateCreated: 1849Cruquiusdijk 27
HaarlemmermeerCountry: NetherlandsWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/pumping/-153-cruquius-pumping-station-%281849%29Creator: Cruquius, Nicolaus Samuel , Beijerinck, Jan Anne

This is one of three nearly identical pumping stations that drained the Haarlemmermeer (Haarlem Lake), 1849- 52, then continued to maintain the polder's water table for more than 80 years. The Haarlemmermeer area covers 45,000 acres (about 70 square miles) in a triangular region between the cities of Amsterdam, Haarlem, and Leiden.

YearAdded:
1991
Image Credit: Courtesy Flickr/Mirko Junge (CC BY-SA 2.0)Image Caption: Cruquius Pumping StationEra_date_from: 1849
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