Dutch Hollow Subwatershed Site 1-5, located in Woodbury County, Iowa, is a local government-owned earth dam completed in 1994 by the USDA NRCS. This dam serves multiple purposes, including fire protection, stock, and small fish pond management, as well as flood risk reduction. With a height of 26 feet and a length of 1200 feet, this dam has a storage capacity of 70 acre-feet and covers a surface area of 2 acres, draining a 3.49 square mile watershed.

Managed by the Iowa DNR, Dutch Hollow Subwatershed Site 1-5 has a low hazard potential and is categorized as having a moderate risk level. While the condition of the dam has not been officially assessed, it is not currently rated. Despite the lack of recent inspection data, the dam is regulated by the state, with permitting, inspection, and enforcement processes in place. With its strategic location along the TR-Koker Creek, this dam plays a crucial role in water resource management in the region, highlighting the importance of maintaining and monitoring such structures for the resilience of local communities and ecosystems in the face of changing climate conditions.