Coulter 14-3 is a private dam located in Johnson, Wyoming, along the Lion Draw river. Constructed in 2004, the Earth-type dam serves multiple purposes including fire protection, stock watering, and small fish pond creation. With a maximum storage capacity of 77 acre-feet and a normal storage capacity of 45 acre-feet, the dam covers a surface area of 4.3 acres and has a drainage area of 0.14 square miles.

The dam stands at 30 feet in height with a hydraulic height of 24 feet and a structural height of 35 feet. It has a length of 326 feet and an uncontrolled spillway with a width of 10 feet. The dam is equipped with a valve outlet gate and is inspected every 5 years, with the last inspection conducted in April 2019 revealing a fair condition assessment and low hazard potential. The risk assessment for Coulter 14-3 is considered moderate, highlighting the importance of ongoing risk management measures to ensure the safety and integrity of the structure.

As a critical water resource for the area, Coulter 14-3 plays a vital role in providing essential water services for fire protection, livestock, and wildlife. With its strategic location and purposeful design, the dam serves as a key component of the local water infrastructure, contributing to the overall resilience and sustainability of the region's water resources in the face of a changing climate.