Captain Johnson Reservoir Dam, located in Washoe, Nevada, stands as a testament to early 20th-century engineering, with a completion date of 1911. This Federal-owned structure serves primarily for irrigation, but also provides fire protection, stock, and a small fish pond. Situated on Denio Creek, the dam is classified as an Earth type with a height of 35 feet and a hydraulic height of 24 feet, containing a storage capacity of 1250 acre-feet.

Despite its historical significance, the dam's condition assessment reveals concerning findings, with a poor rating noted during an inspection in July 2017. The hazard potential is categorized as low, but the risk assessment indicates a high level, prompting the need for further evaluation and potential risk management measures. With a lack of spillway and outdated inspection data, there are challenges to ensuring the safety and integrity of the structure, highlighting the importance of continued monitoring and maintenance efforts to prevent potential hazards and ensure the long-term resilience of this key water resource infrastructure.