Hooper Dam is an earth dam located in Warren County, Iowa, built in 1996. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 900 ft long, taller than 83% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Hooper Dam
The primary purpose of Hooper Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Iowa Department of Natural Resources (state). It impounds the Tr- Squaw Creek near Indianola.
The dam stands 37 feet tall and stretches 900 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 879 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1996, the structure is 30 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 04/30/2024.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Iowa |
| County | Warren |
| Nearest City | Indianola |
| River/Stream | Tr- Squaw Creek |
| Coordinates | 41.27790, -93.59090 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 900 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 879 acre-ft |
| Max Storage | 879 acre-ft |
| Normal Storage | 418 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/30/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03101 |
| Federal ID | IA03101 |
| More Info | State Dam Safety Program |