County Basin Dam
County Basin Dam is an earth dam located in Guthrie County, Iowa, built in 2006. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About County Basin Dam
County Basin Dam is a dam in Guthrie, Iowa. The dam is owned by Lake Panorama Association (private). It impounds the Tr-lake Panorama (middle Raccoon River) near Lake Panorama.
The dam stands 104 feet tall and stretches 2,270 feet across, has a maximum storage capacity of 1,625 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2006, 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.
At 104 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Iowa |
| County | Guthrie |
| Nearest City | Lake Panorama |
| River/Stream | Tr-lake Panorama (middle Raccoon River) |
| Coordinates | 41.73470, -94.44520 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 104 ft |
| Dam Height | 104 ft |
| Dam Length | 2,270 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 1,625 acre-ft |
| Max Storage | 1,625 acre-ft |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| 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 | IA03520 |
| Federal ID | IA03520 |
| More Info | State Dam Safety Program |