Mill Picayune Watershed Site M-24-2 is an earth dam located in Crawford County, Iowa, built in 1972. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 685 ft long, taller than 86% 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 M-24-2
The primary purpose of Mill Picayune Watershed Site M-24-2 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 Crawford County Swcd (local government). It impounds the Tr-mill Creek near Manteno.
The dam stands 40 feet tall and stretches 685 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 251 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1972, 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 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Iowa |
| County | Crawford |
| Nearest City | Manteno |
| River/Stream | Tr-mill Creek |
| Coordinates | 41.86650, -95.44980 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 685 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 251 acre-ft |
| Max Storage | 251 acre-ft |
| Normal Storage | 87 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Crawford County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01520 |
| Federal ID | IA01520 |
| More Info | State Dam Safety Program |