Springbrook Lake Dam
Springbrook Lake Dam is an earth dam located in Guthrie County, Iowa, built in 1934. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Springbrook Lake Dam
The primary purpose of Springbrook Lake 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-middle Raccoon River near Lake Panorama.
The dam stands 40 feet tall and stretches 580 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 187 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1934, the structure is well-established, with more than 75 years of service.
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 05/06/2021.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Iowa |
| County | Guthrie |
| Nearest City | Lake Panorama |
| River/Stream | Tr-middle Raccoon River |
| Coordinates | 41.77530, -94.46650 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 580 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 187 acre-ft |
| Max Storage | 187 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 12 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 | 05/06/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01345 |
| Federal ID | IA01345 |
| More Info | State Dam Safety Program |