Afsluitdijk

 dam, dike

The Afsluitdijk (English: Enclosure Dam, Frisian: Ofslútdyk) is a major causeway in the Netherlands, constructed between 1927 and 1933 and running from Den Oever on Wieringen in North Holland province, to the village of Zurich (mun. Wûnseradiel) in Friesland province, over a length of 32 km (20 miles) and a width of 90 m, at an initial height of 7.25 m above sea-level.
It was part of the Zuiderzee Works (Dutch: Zuiderzeewerken) and was build as a dam between the Zuiderzee and the North Sea. It was built to protect the inland areas from flooding and for the land reclamation project in the former Zuiderzee.

On top of the dike is a motorway connecting the two shores. The space that was meant to accommodate a railway was later used to double the motorway to four lanes. This is now route A7 (also named route E22 as a part of the European E-road network ). In true Dutch fashion, there is also a bicycle path connecting the two shores.