Arnold-armstrong Subwtrshd Sta 127+05 is an earth dam located in Monona County, Iowa, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 335 ft long, taller than 82% 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 Arnold-armstrong Subwtrshd Sta 127+05
The primary purpose of Arnold-armstrong Subwtrshd Sta 127+05 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 Monona County Swcd (local government). It impounds the Dutch Creek near Castana.
The dam stands 36 feet tall and stretches 335 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 88 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, 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 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Iowa |
| County | Monona |
| Nearest City | Castana |
| River/Stream | Dutch Creek |
| Coordinates | 42.16140, -95.87220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 335 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 88 acre-ft |
| Max Storage | 88 acre-ft |
| Normal Storage | 36 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Monona County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00785 |
| Federal ID | IA00785 |
| More Info | State Dam Safety Program |