Monona County Roadgrade Dam 5-82-42 is an earth dam located in Monona County, Iowa, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 573 ft long, taller than 90% 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 Monona County Roadgrade Dam 5-82-42
The primary purpose of Monona County Roadgrade Dam 5-82-42 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 Board of Supervisors (local government). It impounds the Tr-soldier River near Moorhead.
The dam stands 45 feet tall and stretches 573 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, 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 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Iowa |
| County | Monona |
| Nearest City | Moorhead |
| River/Stream | Tr-soldier River |
| Coordinates | 41.94270, -95.76320 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 573 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Monona County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00712 |
| Federal ID | IA00712 |
| More Info | State Dam Safety Program |