Williams is a private water resource structure located in Niobrara, Wyoming, along the Krejci Draw river. This Earth-type dam, designed by Edwin R Lang and completed in 1960, serves multiple purposes including fire protection, stock, and small fish pond management. With a maximum storage capacity of 120 acre-feet and a normal storage of 65 acre-feet, Williams covers a surface area of 8 acres and has a hydraulic height of 17 feet.

Despite its fair condition assessment and low hazard potential, Williams is subject to regular inspections every five years to ensure its structural integrity and safety. The dam features an uncontrolled spillway with a width of 35 feet and a single slide (sluice gate) outlet gate. Located in Congressional District 00 of Wyoming, Williams plays a crucial role in water management and emergency preparedness in the region. Climate enthusiasts and water resource advocates can appreciate the significance of Williams in providing essential services for fire protection and agricultural activities in the area.