Pony Creek Watershed Site 31 is an earth dam located in Mills County, Iowa, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 600 ft long, taller than 84% 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 Pony Creek Watershed Site 31
The primary purpose of Pony Creek Watershed Site 31 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 Mills County Swcd (local government). It impounds the Tr-pony Creek near Pacific Junction.
The dam stands 38 feet tall and stretches 600 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 370 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 09/22/2003. That was over 23 years ago.
At 38 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Iowa |
| County | Mills |
| Nearest City | Pacific Junction |
| River/Stream | Tr-pony Creek |
| Coordinates | 41.04640, -95.78510 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 600 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 370 acre-ft |
| Max Storage | 370 acre-ft |
| Normal Storage | 136 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Mills County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/22/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00687 |
| Federal ID | IA00687 |
| More Info | State Dam Safety Program |