Poplar is a privately owned dam located in Douglas County, Wisconsin, on the Poplar River. Built in 1925, this buttress-type dam serves primarily for recreational purposes, offering a storage capacity of 90 acre-feet and a maximum discharge of 1,280 cubic feet per second. With a structural height of 19 feet and a length of 400 feet, the dam has a low hazard potential and is currently considered to be in a not rated condition assessment.

Although Poplar is regulated by the Wisconsin Department of Natural Resources (WIDNR) and undergoes regular inspections every 10 years, its emergency action plan and risk management measures are not fully documented. Despite this, the dam is deemed to have moderate risk, based on a risk assessment score of 3. With its uncontrolled spillway type and a surface area of 9 acres, Poplar dam presents a unique opportunity for water resource and climate enthusiasts to explore the intersection of dam infrastructure and environmental conservation efforts in the region.