De 1100 Roe

De 1100 Roe, also known as the Ookmeermolen, is a historic polder windmill in Amsterdam. Its name derives from its distance from the Haarlemmerpoort. Originally built in 1674, it was used to drain the Sloter and Middelveldsche polders. After it lost its original function in the 1950s, it was dismantled in 1961 and rebuilt in 1965 at the Sportpark Ookmeer, where it still helps regulate the water level today. The mill has a Fokwiek system, a Vlaamse vang with a tail pole, and a cap that rotates on an English crown wheel. The water is moved by a steel Archimedes screw.