Mosquito of Harrison Watershed Site 7-4 is a dam located in the Neola area of Iowa, specifically on TR-Mosquito Creek. Built in 1993 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock maintenance, and small fish pond management. With a height of 40 feet and a length of 728 feet, the dam has a storage capacity of 192 acre-feet and covers a drainage area of 0.49 square miles.

Managed by the Iowa Department of Natural Resources, Mosquito of Harrison Watershed Site 7-4 is regulated, inspected, and enforced to ensure its safety and functionality. With a low hazard potential and a moderate risk assessment, this dam plays a crucial role in flood risk reduction in the area. While the condition assessment is currently not rated, the dam meets regulatory guidelines and has not undergone any modifications since its completion.

As a key infrastructure in water resource management, Mosquito of Harrison Watershed Site 7-4 provides essential services to the local community while also contributing to environmental conservation efforts. Its presence on TR-Mosquito Creek highlights the importance of sustainable water management practices in mitigating the impacts of climate change and ensuring the resilience of ecosystems in the region.