Lake Jackson Dam is on the Occoquan River in Prince William County, Virginia and is used for recreation purposes. Construction was completed in 1928. It has a normal surface area of 200 acres. It is owned by Prince William County. Lake Jackson Dam is a gravity dam. Its height is 28 feet with a length of 380 feet. Its capacity is 13500 acre feet. Normal storage is 1228 acre feet. It drains an area of 343 square miles.