Bernsen Dam, also known as Powerline Reservoir Dam, is a state-owned structure in Franklin County, Washington, designed by Steve T. Monek. Completed in 1974, this earth dam stands at a height of 15 feet and spans 492 feet in length. With a primary purpose of irrigation, the dam also serves recreational activities and has a storage capacity of 50 acre-feet.

Situated on the irrigation drainage of the Ringold River in the city of RINGOLD, Bernsen Dam is regulated and inspected by the Washington Department of Ecology. The dam's low hazard potential and not-rated condition assessment indicate its stable structural integrity. While there are no associated structures or locks, the dam features a spillway with a maximum discharge of 30 cubic feet per second, ensuring safe water release during heavy inflows.

Water resource and climate enthusiasts can appreciate Bernsen Dam for its vital role in providing irrigation water to the surrounding area, while also offering recreational opportunities. Its construction and management by the state demonstrate a commitment to sustainable water resource management. The dam's location, design, and operational features align with regulations and inspections, ensuring the safety and efficiency of its functions for the community it serves.