Anamosa, also known as the Wapsipinicon River Dam, is a gravity dam located in Anamosa, Iowa. Built in 1909, this dam serves a primary purpose of hydroelectric power generation. It has a height of 12 feet and a hydraulic height of 10.2 feet, with a storage capacity of 650 acre-feet and a surface area of 120 acres. The dam is regulated by the Iowa Department of Natural Resources and inspected by the Federal Energy Regulatory Commission.

The Wapsipinicon River Dam plays a crucial role in managing water resources in the region, with a low hazard potential and moderate risk assessment rating. Despite its age, the dam's condition assessment is currently not available. Emergency action plans are in place, with the last revision done in December 2020. The dam has an uncontrolled spillway with a width of 146 feet, ensuring safe discharge of excess water during flooding events.

Located in Jones County, Anamosa's gravity dam on the Wapsipinicon River stands as a testament to early hydroelectric infrastructure in Iowa. With its historical significance and ongoing regulatory oversight, this dam continues to contribute to water resource management and climate resilience efforts in the region.