Harmony Creek Watershed Site 1 is an earth dam located in Harrison County, Iowa, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 43 ft43 ft tall and 758 ft long, taller than 89% 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 Harmony Creek Watershed Site 1
The primary purpose of Harmony Creek Watershed Site 1 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 Harrison County Swcd (local government). It impounds the Harmony Creek near Missouri Valley.
The dam stands 43 feet tall and stretches 758 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 755 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1958, 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.
At 43 feet, this dam is taller than 89% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Harrison |
| Nearest City | Missouri Valley |
| River/Stream | Harmony Creek |
| Coordinates | 41.62580, -95.74410 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 758 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 755 acre-ft |
| Max Storage | 755 acre-ft |
| Normal Storage | 390 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Harrison County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00484 |
| Federal ID | IA00484 |
| More Info | State Dam Safety Program |