Graven, located in Alturas, California, is a privately owned dam on Tr Canyon Creek with a primary purpose of water supply for irrigation and other uses. Built in 1917, this earth dam stands at a height of 15 feet with a hydraulic height of 12 feet, holding a storage capacity of 1100 acre-feet. With a low hazard potential and a satisfactory condition assessment, Graven plays a crucial role in water resource management in the region.

Managed by the California Department of Water Resources, Graven is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with standards. The dam spans 1630 feet in length and covers a surface area of 214 acres, serving a drainage area of 6 square miles. Despite its age, Graven has maintained its structural integrity over the years, providing essential water resources to the surrounding community.

With its strategic location in Modoc County and proximity to the San Francisco District, Graven serves as a vital infrastructure for water supply and irrigation in the area. Under the supervision of state agencies and regular inspections, this dam continues to play a key role in managing water resources and mitigating potential risks associated with its operation. Enthusiasts of water resources and climate management will find Graven's data and characteristics fascinating in the context of sustainable water management practices.