Mccarty is a privately owned dam located in Copperopolis, California, along the Tr Johnny Creek. Built in 1938, this earth dam stands at 19 feet high and stretches 670 feet in length, with a storage capacity of 93 acre-feet for water supply purposes, including irrigation. The dam is regulated and inspected by the California Department of Water Resources (DWR) under the Safety of Dams program, ensuring its safe operation and compliance with state regulations.

Despite its age, Mccarty has a low hazard potential and is deemed to be in a satisfactory condition following a recent assessment in September 2017. The dam undergoes regular inspections, with the most recent one conducted in March 2021, ensuring its continued safety and reliability. In the event of an emergency, there are established protocols in place, although specific details about an Emergency Action Plan (EAP) are not provided in the data. Overall, Mccarty serves as a crucial water resource infrastructure in the region, contributing to water supply and agricultural needs while being closely monitored for its safety and regulatory compliance.