Located in Johnson, Wyoming, the Will dam stands as a vital structure for fish and wildlife conservation. Constructed in 2008 by designer Hugh Lowham, this Federal-owned earth dam serves multiple purposes including fire protection and small fish pond. With a height of 33 feet and a hydraulic height of 28 feet, the dam spans a length of 432 feet and has a storage capacity of 40 acre-feet.

Despite a low hazard potential and fair condition assessment, the Will dam is subject to regular inspections to ensure its structural integrity. With a drainage area of 0.05 square miles and a maximum discharge of 497 cubic feet per second, this dam plays a crucial role in managing water resources in the region. The dam is regulated by the State of Wyoming, with inspection, enforcement, and permitting carried out by the state regulatory agencies. For water resource and climate enthusiasts, the Will dam represents a key component of environmental conservation efforts in the area.