Lake Pahoja Dam
Lake Pahoja Dam is an earth dam located in Lyon County, Iowa, built in 1974. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lake Pahoja Dam
The primary purpose of Lake Pahoja Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Lyon County Conservation Board (local government). It impounds the Tr-klondike Creek near Canton, Sd.
The dam stands 50 feet tall and stretches 1,305 feet across, creates a reservoir covering 71 acres, has a maximum storage capacity of 2,283 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
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 10/11/2021.
At 50 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Iowa |
| County | Lyon |
| Nearest City | Canton, Sd |
| River/Stream | Tr-klondike Creek |
| Coordinates | 43.38350, -96.47110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 1,305 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 2,283 acre-ft |
| Max Storage | 2,283 acre-ft |
| Normal Storage | 893 acre-ft |
| Surface Area | 71 acres |
| Drainage Area | 6 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Lyon County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/11/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00604 |
| Federal ID | IA00604 |
| More Info | State Dam Safety Program |