Norlund 1 is a privately owned earth dam located in Crawford County, Iowa, near East Boyer River. Built in 2005 by USDA NRCS, this structure serves primarily for flood risk reduction along a tributary to Rocky Run Creek. Standing at 19 feet high and spanning 605 feet in length, Norlund 1 has a storage capacity of 146 acre-feet and covers a surface area of 6.2 acres. Despite its low hazard potential, the dam is not currently rated for its condition and has not undergone recent inspection.

Managed by the Iowa DNR, Norlund 1 operates with state permitting, inspection, and enforcement measures in place. The dam features an uncontrolled spillway with a width of 20 feet and has no outlet gates. While no emergency action plan (EAP) or inundation maps have been prepared for this structure, it does have a moderate risk assessment rating of 3 out of 5. Its risk management measures and risk characterization summary are currently unspecified, indicating potential room for improvement in emergency preparedness and response planning for this facility.