Mill Picayune Watershed Site P-4 is an earth dam located in Shelby County, Iowa, built in 1995. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 240 ft long, taller than 80% 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 Mill Picayune Watershed Site P-4
The primary purpose of Mill Picayune Watershed Site P-4 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 Shelby County Swcd (local government). It impounds the Picayune Creek near Woodbine.
The dam stands 35 feet tall and stretches 240 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 170 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1995, the structure is 31 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 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Iowa |
| County | Shelby |
| Nearest City | Woodbine |
| River/Stream | Picayune Creek |
| Coordinates | 41.77420, -95.53670 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 240 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Shelby County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03046 |
| Federal ID | IA03046 |
| More Info | State Dam Safety Program |