Pk 9-17 is a private irrigation dam located in Johnson, Wyoming, along the unnamed tributary of Crazy Woman Creek. Built in 2007, this earth dam stands at 35 feet tall and has a storage capacity of 42 acre-feet. The dam serves multiple purposes including fire protection, stock watering, small fish pond, fish and wildlife habitat, and irrigation, making it a crucial water resource for the area.

With a fair condition assessment and low hazard potential, Pk 9-17 poses a moderate risk, according to the latest data from 2018. The dam is equipped with an uncontrolled spillway and a single valve outlet gate for water management. Despite its modest size with a surface area of 3.1 acres and drainage area of 0.15 square miles, Pk 9-17 plays a significant role in water storage and distribution for the surrounding area.

Managed by the private owner and regulated by the Wyoming State Engineer's Office and Department of Environmental Quality, Pk 9-17 undergoes regular inspections and enforcement to ensure its safety and functionality. The dam's strategic location on Tipperary Road highlights its importance in sustaining agricultural activities and enhancing the local ecosystem. For water resource and climate enthusiasts, Pk 9-17 represents a vital infrastructure contributing to water availability and ecosystem health in Wyoming.