Hynick Dam is an earth dam located in Mahaska County, Iowa, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 352 ft long, taller than 65% 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 Hynick Dam
The primary purpose of Hynick 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 Charles Hynick (private). It impounds the Tr-des Moines River near Eddyville.
The dam stands 29 feet tall and stretches 352 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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 12/07/1964. That was over 61 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 | Mahaska |
| Nearest City | Eddyville |
| River/Stream | Tr-des Moines River |
| Coordinates | 41.25090, -92.80300 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 352 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Charles Hynick |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/07/1964 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00644 |
| Federal ID | IA00644 |
| More Info | State Dam Safety Program |