Lindgren Dam #3 is a privately owned earth dam located in Danbury, Iowa, along the TR-Maple River. Built in 1998 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock, and small fish pond. With a height of 34 feet and a length of 465 feet, it has a storage capacity of 44 acre-feet and covers a surface area of 2.8 acres. The dam is regulated by the Iowa DNR and undergoes regular inspections, with a low hazard potential and a moderate risk assessment rating.

The dam features an uncontrolled spillway and is primarily constructed of soil, making it a vital resource for water conservation and management in the region. Despite its low hazard potential, the dam plays a crucial role in ensuring water availability for fire protection and agricultural needs in the area. Its location in a rural setting adds to its importance as a strategic water resource for the local community.

As a key component of the water infrastructure in Ida County, Iowa, Lindgren Dam #3 highlights the importance of sustainable water resource management in the face of changing climate patterns. With its moderate risk assessment rating and regular regulatory oversight, the dam stands as a testament to responsible water resource development and conservation efforts in the region.