Walker is a private dam located in Niobrara, Wyoming, with a primary purpose of flood risk reduction. Built in 1972, this earth dam stands at 21 feet tall and spans 533 feet in length, holding a maximum storage capacity of 103 acre-feet. The dam is situated on Zimmerman Draw, under the jurisdiction of the Wyoming State Engineer's Office, and is regulated, inspected, and enforced by the state.

With a low hazard potential and fair condition assessment, Walker poses a moderate risk according to the data. The spillway is uncontrolled with a width of 206 feet, and the dam is equipped with one other controlled outlet gate. Despite having a drainage area of 0, the dam covers a surface area of 8.8 acres and plays a crucial role in managing floodwaters in the region.

For water resource and climate enthusiasts, Walker offers a fascinating glimpse into the infrastructure designed to mitigate flood risks in the area. With its strategic location and design features, this dam serves as a vital component in the larger water management system, showcasing the importance of effective regulatory oversight and maintenance practices to ensure the safety and functionality of such critical structures.