Little River Watershed Site 65-3
Little River Watershed Site 65-3 is an earth dam located in Decatur County, Iowa, built in 1980. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Little River Watershed Site 65-3
The primary purpose of Little River Watershed Site 65-3 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Decatur County Swcd (local government). It impounds the Tr-little River near Princton, Mo.
The dam stands 22 feet tall and stretches 450 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 116 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1980, the structure is 46 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 05/28/2024.
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Location
| State | Iowa |
| County | Decatur |
| Nearest City | Princton, Mo |
| River/Stream | Tr-little River |
| Coordinates | 40.73970, -93.79250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 450 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 116 acre-ft |
| Max Storage | 116 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Decatur County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/28/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02128 |
| Federal ID | IA02128 |
| More Info | State Dam Safety Program |