Located in Preston, Idaho, Glendale, also known as Worm Creek Reservoir, is a privately owned structure regulated by the Idaho Department of Water Resources. Built in 1930, this earthen dam stands at a height of 73.4 feet and has a storage capacity of 5727 acre-feet, serving as a critical water resource for the surrounding area. The dam, constructed with stone core and rock and soil foundations, spans 650 feet in length and covers a surface area of 207.8 acres, with a drainage area of 15.2 square miles.

Despite being categorized as having a high hazard potential, Glendale is currently in fair condition as of its last inspection in July 2018. It has a spillway width of 80 feet and utilizes uncontrolled spillway type with other controlled outlet gates. The dam's risk assessment is moderate, with a risk score of 3. With routine inspections and enforcement by the Idaho Department of Water Resources, Glendale continues to play a crucial role in water management and climate resilience efforts in the region, ensuring the safety of nearby communities and ecosystems.