Stump Lake
Stump Lake is an earth dam located in Des Moines County, Iowa, built in 1941. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Stump Lake
The primary purpose of Stump Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Iowa Army Ammunition Plant (federal). It impounds the Long Creek near Middleton.
The dam stands 29 feet tall and stretches 1,025 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 650 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/11/2016.
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Location
| State | Iowa |
| County | Des Moines |
| Nearest City | Middleton |
| River/Stream | Long Creek |
| Coordinates | 40.80275, -91.27615 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,025 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 650 acre-ft |
| Max Storage | 650 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Army Ammunition Plant |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/11/2016 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IA04147 |
| Federal ID | IA04147 |
| More Info | State Dam Safety Program |