Twin Ponies Watershed Site 8
Twin Ponies Watershed Site 8 is an earth dam located in Pottawattamie County, Iowa, built in 1990. It carries a Low hazard potential classification.
About Twin Ponies Watershed Site 8
The primary purpose of Twin Ponies Watershed Site 8 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 West Pottawattamie County Swcd (local government). It impounds the Tr- Pony Creek near Missouri River.
The dam stands 36 feet tall and stretches 870 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 35 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1990, the structure is 36 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 10/21/1993. That was over 32 years ago.
At 36 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Iowa |
| County | Pottawattamie |
| Nearest City | Missouri River |
| River/Stream | Tr- Pony Creek |
| Coordinates | 41.19350, -95.76250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 870 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | West Pottawattamie County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/21/1993 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02663 |
| Federal ID | IA02663 |
| More Info | State Dam Safety Program |