Cory Basin Dam
Cory Basin Dam is an earth dam located in Guthrie County, Iowa, built in 2016. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Cory Basin Dam
The primary purpose of Cory Basin Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Lake Panorama Association (private). It impounds the Trib To Des Moines River near Panora.
The dam stands 22 feet tall and stretches 3,860 feet across, has a maximum storage capacity of 870 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2016, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/13/2023.
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Location
| State | Iowa |
| County | Guthrie |
| Nearest City | Panora |
| River/Stream | Trib To Des Moines River |
| Coordinates | 41.72340, -94.38100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 3,860 ft |
| Year Completed | 2016 (10 years old) |
Storage & Hydraulics
| NID Storage | 870 acre-ft |
| Max Storage | 870 acre-ft |
| Normal Storage | 800 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 25 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Lake Panorama Association |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/13/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04244 |
| Federal ID | IA04244 |
| More Info | State Dam Safety Program |