Gruwell Dam, located in NAPONEE, Nebraska, along TR-CROW CREEK, was completed in 1960 and is owned privately. The dam serves the primary purpose of flood risk reduction, with a maximum storage capacity of 66.1 acre-feet and a normal storage capacity of 23.1 acre-feet. The dam is an earth-type structure with a height of 13.1 feet and a length of 400 feet, situated in Harlan County, Nebraska.

Managed by the Nebraska Department of Natural Resources (NE DNR), Gruwell Dam is regulated, permitted, inspected, and enforced by the state. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment, with the last inspection conducted in June 2018. The dam's emergency action plan status, inundation maps, risk assessment, and risk management measures are not explicitly stated in the available data.

For enthusiasts of water resources and climate, Gruwell Dam represents an important piece of infrastructure in the ongoing efforts to manage flood risks in the region. With its strategic location and design features, the dam plays a vital role in protecting the surrounding area from potential flooding events. Monitoring and maintenance of the dam are essential to ensuring its continued functionality and effectiveness in safeguarding the community and environment from the impacts of extreme weather events.