Mcbrien is a privately owned dam located in Canby, California, along the Pit River. Built in 1880, this buttress-type dam stands at a height of 12 feet and has a length of 74 feet, serving primarily for flood risk reduction. With a storage capacity of 1000 acre-feet, Mcbrien plays a crucial role in irrigation and water supply for the surrounding area. The dam is regulated by the Department of Water Resources and is subject to regular state inspections, ensuring its safe operation.

Despite its age, Mcbrien is considered to have a low hazard potential and is assessed as being in satisfactory condition as of September 2017. With a surface area of 700 acres and a hydraulic height of 11 feet, the dam continues to provide effective flood risk reduction for the region. The last inspection in May 2020 confirmed the dam's structural integrity and its compliance with safety regulations. As an essential infrastructure for water resource management in Modoc County, Mcbrien remains a key asset for climate and water enthusiasts to appreciate and monitor for its continued effectiveness in protecting the community from potential flooding events.