Grayrocks is a significant Earth dam located on the Laramie River in Fort Laramie, Wyoming. Built in 1980, this dam stands at a height of 95 feet and has a storage capacity of 194,000 acre-feet, with a normal storage level of 104,110 acre-feet. The dam plays a crucial role in flood control and water supply management for the region, covering a surface area of 3,547 acres and draining a watershed area of 4,484 square miles.

Managed by a public utility, Grayrocks is regulated by the State of Wyoming and is subject to regular inspections and enforcement measures to ensure its structural integrity and safety. The dam's spillway, with a width of 14 feet, is designed as uncontrolled, and the outlet gates consist of a single valve. Despite being categorized as having a high hazard potential, the dam's condition assessment is deemed fair, with a moderate risk rating of 3. While there are no associated structures, Grayrocks remains a critical infrastructure for the community, contributing to water resource management and climate resilience efforts in the area.

Overall, Grayrocks represents a vital component of the water resource infrastructure in Platte, Wyoming, serving multiple purposes beyond flood control, including irrigation, recreation, and wildlife habitat enhancement. With a designer name of Forest M. Kepler, the dam stands as a testament to engineering ingenuity and environmental stewardship. As climate change impacts intensify, the importance of structures like Grayrocks in ensuring the sustainability and resilience of water resources in the region cannot be overstated, making it a focal point for water resource and climate enthusiasts alike.