Holy Terror is a privately owned Earth dam located in Hotchkiss, Colorado, along the Terror Creek. Built in 1893 for irrigation purposes, this historic structure stands at 17 feet tall and stretches 750 feet in length, with a storage capacity of 218 acre-feet. Despite its age, the dam is in satisfactory condition with a low hazard potential, as assessed in 2016.

The dam, constructed with stone core and rock-soil foundations, features a slide gate and uncontrolled outlet gates. With a maximum discharge of 1000 cubic feet per second, Holy Terror poses a high risk (rated 2 out of 5) due to its age and potential vulnerability to climate-related events. Although it has not undergone recent modifications or emergency action plan updates, regular inspections are conducted every six years to ensure its continued safety and functionality.

As water resource and climate enthusiasts explore the intricate details of Holy Terror, it serves as a reminder of the importance of maintaining and monitoring aging infrastructure in the face of changing environmental conditions. With its rich history and vital role in supporting local irrigation needs, this dam stands as a testament to the enduring connection between water resources, infrastructure, and the natural world.