West Sunnyside Watershed Site C-1-1 is an earth dam located in Plymouth County, Iowa, built in 1959. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 545 ft long, taller than 78% 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 West Sunnyside Watershed Site C-1-1
The primary purpose of West Sunnyside Watershed Site C-1-1 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 Plymouth County Swcd (local government). It impounds the Tr-broken Kettle Creek near Sioux City.
The dam stands 34 feet tall and stretches 545 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1959, 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 09/26/1963. That was over 63 years ago.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Iowa |
| County | Plymouth |
| Nearest City | Sioux City |
| River/Stream | Tr-broken Kettle Creek |
| Coordinates | 42.70690, -96.52090 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 545 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Plymouth County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/26/1963 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00899 |
| Federal ID | IA00899 |
| More Info | State Dam Safety Program |