Small Canyon in Highland, California, is a local government-owned earth dam completed in 1957 for debris control on Tr City Creek. With a height of 68 feet and a hydraulic height of 60 feet, the dam has a storage capacity of 20 acre-feet and a length of 245 feet. The dam's hazard potential is classified as high, but its condition assessment in 2017 was deemed satisfactory.

Located in San Bernardino County, Small Canyon is regulated by the California Department of Water Resources and undergoes regular inspections. The dam's emergency action plan was last revised in March 2021, ensuring preparedness for any potential risks. The primary purpose of the dam is debris control, and it plays a crucial role in managing water resources in the region.

For water resource and climate enthusiasts, Small Canyon offers a fascinating glimpse into the intersection of infrastructure, environmental protection, and public safety. As a key structure in the area's water management system, the dam serves as a vital tool for reducing debris and ensuring the safety of downstream communities. With its strategic location and ongoing regulatory oversight, Small Canyon stands as a testament to the importance of responsible dam operation in a changing climate.