Giesking Dam is an earth dam located in Tama County, Iowa, built in 2022. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 523 ft long. 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 Giesking Dam
The primary purpose of Giesking Dam 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 Wendell Giesking (private). It impounds the Unnamed Tributary to Twelvemile Creek near Traer.
The dam stands 18 feet tall and stretches 523 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 77 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2022, the structure is relatively new.
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.
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Location
| State | Iowa |
| County | Tama |
| Nearest City | Traer |
| River/Stream | Unnamed Tributary to Twelvemile Creek |
| Coordinates | 42.23670, -92.59320 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 523 ft |
| Year Completed | 2022 (4 years old) |
Storage & Hydraulics
| NID Storage | 77 acre-ft |
| Max Storage | 77 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Wendell Giesking |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04346 |
| Federal ID | IA04346 |
| More Info | State Dam Safety Program |