Lampman, located in Big Horn, Wyoming, is a federally owned dam primarily used for fire protection, stock watering, and as a small fish pond. The earth dam stands at a height of 25 feet and has a hydraulic height of 20 feet, with a length of 350 feet. Its primary purpose is to store water for various needs, with a storage capacity of 45 acre-feet and a surface area of 3.9 acres. The dam is situated on the Redwood Draw river/stream and is regulated by the state of Wyoming, ensuring proper inspection, permitting, and enforcement measures are in place.

Despite being classified as having low hazard potential, Lampman has a fair condition assessment and undergoes inspection every 5 years to assess its safety and structural integrity. The dam's spillway is uncontrolled, with a width of 40 feet, allowing for the safe release of excess water. The risk assessment for Lampman is moderate, indicating a level 3 risk, with no specific risk management measures or inundation maps prepared at this time. Overall, Lampman serves as a vital water resource for fire protection and livestock in the area, highlighting the importance of proper maintenance and regulatory oversight for the dam.