Nyswonger Dam
Nyswonger Dam is an earth dam located in Warren County, Iowa, built in 1970. It carries a Low hazard potential classification.
About Nyswonger Dam
The primary purpose of Nyswonger Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by William D Nyswonger (private). It impounds the Tr-middle River near Summerset.
The dam stands 30 feet tall and stretches 492 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
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. The most recent inspection on record was 10/01/2003. That was over 22 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Warren |
| Nearest City | Summerset |
| River/Stream | Tr-middle River |
| Coordinates | 41.37300, -93.59130 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 492 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | William D Nyswonger |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/01/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01115 |
| Federal ID | IA01115 |
| More Info | State Dam Safety Program |