Fort Supply Dam is a federal flood-control project in northwestern Oklahoma. It is on Wolf Creek near its junction with the North Canadian River. The dam is an earth-fill structure 11,865 feet (3,616 meters) long and 85 feet (26 meters) high. The reservoir normally holds about 13,900 acre-feet (17 million cubic meters) of water. It has a maximum capacity of about 100,700 acre-feet (124 million cubic meters). The dam was completed in 1942.
