Cresswell Dam, located in Danbury, Iowa, was completed in 1954 and serves multiple purposes such as fire protection, stock, and small fish pond management. The dam, with a height of 33 feet and a length of 950 feet, has a normal storage capacity of 57 acre-feet and a maximum storage capacity of 162 acre-feet. Situated on the TR-MAPLE RIVER, the dam is under the regulatory authority of the Iowa Department of Natural Resources and is classified as low hazard potential with a moderate risk assessment rating.

Managed by a private owner, Cresswell Dam is designed by the USDA NRCS and constructed using earth materials with a soil foundation. The dam is primarily regulated by the state of Iowa and undergoes regular inspections, although the last inspection dates back to 1987. The dam has an uncontrolled spillway type and is associated with the Rock Island District of the US Army Corps of Engineers. Despite its age, the dam's condition is currently not rated, and there is no Emergency Action Plan (EAP) in place as of the latest data update in May 2021.

Water resource and climate enthusiasts interested in Cresswell Dam will find it to be an essential part of flood risk reduction in the Woodbury County area of Iowa. With its strategic location and purposeful design, the dam provides a vital water management system for the local community while also serving as a habitat for small fish and wildlife. As efforts to enhance dam safety and emergency preparedness continue, Cresswell Dam remains a critical infrastructure for water resource management in the region.