Mill Picayune Watershed Site N-3 is an earth dam located in Harrison County, Iowa, built in 1973. It carries a Low hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 1,125 ft long, taller than 88% 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 N-3
The primary purpose of Mill Picayune Watershed Site N-3 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 Tr-picayune Creek near Woodbine.
The dam stands 42 feet tall and stretches 1,125 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 388 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1973, 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 42 feet, this dam is taller than 88% 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 | Woodbine |
| River/Stream | Tr-picayune Creek |
| Coordinates | 41.79800, -95.56250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 1,125 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 388 acre-ft |
| Max Storage | 388 acre-ft |
| Normal Storage | 89 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 6 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 | IA00447 |
| Federal ID | IA00447 |
| More Info | State Dam Safety Program |