Mosquito Creek Watershed Site 11-2-2 is a vital water resource located in Harrison County, Iowa, specifically in the city of Persia. This site serves multiple purposes including fire protection, stock, and small fish pond maintenance, as well as flood risk reduction. Built in 1979, this earth dam stands at a height of 38 feet and has a storage capacity of 52 acre-feet, with a normal storage level of 24 acre-feet.

Managed by the Natural Resources Conservation Service, this dam on Mosquito Creek is regulated by the Iowa Department of Natural Resources and undergoes state inspection, permitting, and enforcement. Despite its uncontrolled spillway and low hazard potential, the risk assessment for this site is moderate. With a drainage area of 0.45 square miles, this watershed site plays a crucial role in water management and conservation efforts in the region. Water resource and climate enthusiasts will find Mosquito Creek Watershed Site 11-2-2 a fascinating example of sustainable water infrastructure in action.