Henry Dam is an earth dam located in Crawford County, Iowa, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 378 ft long, taller than 78% 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 Henry Dam
The primary purpose of Henry Dam 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 Jackie Henry (private). It impounds the Tr-paradise Creek near Dow City.
The dam stands 34 feet tall and stretches 378 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, 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. The most recent inspection on record was 10/05/1961. That was over 65 years ago.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Iowa |
| County | Crawford |
| Nearest City | Dow City |
| River/Stream | Tr-paradise Creek |
| Coordinates | 42.04160, -95.52330 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 378 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 82 acre-ft |
| Max Storage | 82 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Jackie Henry |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/05/1961 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00225 |
| Federal ID | IA00225 |
| More Info | State Dam Safety Program |