Ryun Dam is an earth dam located in Decatur County, Iowa, built in 1994. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 414 ft long, taller than 62% 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 Ryun Dam
The primary purpose of Ryun 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 Gary Ryun (private). It impounds the Tr- Weldon River near State of Missouri.
The dam stands 28 feet tall and stretches 414 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 73 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Decatur |
| Nearest City | State of Missouri |
| River/Stream | Tr- Weldon River |
| Coordinates | 40.67250, -93.60540 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 414 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 73 acre-ft |
| Max Storage | 73 acre-ft |
| Normal Storage | 36 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 | Gary Ryun |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02838 |
| Federal ID | IA02838 |
| More Info | State Dam Safety Program |