Mill Creek Lake Dam
Mill Creek Lake Dam is an earth dam located in O'Brien County, Iowa, built in 1934. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mill Creek Lake Dam
The primary purpose of Mill Creek 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 Cole Creek near Paullina.
The dam stands 29 feet tall and stretches 622 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 500 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1934, 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. The most recent inspection on record was 06/26/2020.
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Location
| State | Iowa |
| County | O'Brien |
| Nearest City | Paullina |
| River/Stream | Cole Creek |
| Coordinates | 42.98430, -95.67170 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 622 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/26/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00837 |
| Federal ID | IA00837 |
| More Info | State Dam Safety Program |