Spectacle Lake, located in Garfield County, Utah, is a private irrigation reservoir with a significant hydraulic height of 39 feet and a structural height of 45 feet. Constructed in 1940 by the USDA NRCS, this Earth dam holds a storage capacity of 1450 acre-feet, making it a crucial water resource for the surrounding area. The dam is regulated by the Utah Division of Water Rights and undergoes regular inspections and enforcement to ensure its safety and functionality.

With a normal storage capacity of 1348 acre-feet and a drainage area of 15 square miles, Spectacle Lake plays a vital role in water management for irrigation purposes in the region. The dam is situated on Boulder Creek, providing essential water supply for agricultural activities in the area. Despite being categorized as having a significant hazard potential, the dam's condition assessment is currently not rated, suggesting a need for further evaluation and maintenance to ensure its long-term safety and efficiency. Water resource and climate enthusiasts will find Spectacle Lake to be a fascinating example of infrastructure designed to support sustainable water use in a challenging environment like Utah.