The Windmotor Oosternijkerk is a modern watermill located near the Langroutserwei in the town of Oosternijkerk. The mill is a relatively small U.S. Wind Engine with a flight of just 3.5 metres. The U.S. Wind Engine design found popularity in the Friesland region during the first half of the 20th century, although in recent years many of the original mills have been decommissioned. Windmotor Oosternijkerk is still in use today, and is not currently open to the public.