Fairview Lake, located in Multnomah County, Oregon, is a private water resource regulated by the Oregon Water Resources Department. This 1919-built dam serves multiple purposes, including flood risk reduction and recreation, making it a vital component of the surrounding ecosystem. With a dam height of 18 feet and a storage capacity of 411 acre-feet, Fairview Lake covers a surface area of 129 acres and has a drainage area of 7.2 square miles.

Despite its low hazard potential, Fairview Lake plays a crucial role in water management in the area, with a normal storage capacity of 235 acre-feet. The dam has a structural height of 18 feet and a hydraulic height of 4 feet, ensuring its stability and effectiveness in flood risk reduction. The dam's location on the Columbia Slough, with no downstream settlement, further emphasizes its importance in maintaining water quality and flow in the region.

Fairview Lake offers not only recreational opportunities but also serves as a key infrastructure for water resource management in the region. With state regulation and inspection ensuring its safety and efficiency, this earth dam continues to play a vital role in balancing water needs for both human use and ecological sustainability in the area.