Harsha Dam is an earth dam located in Jasper County, Iowa, built in 1975. It carries a Significant hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 300 ft long, taller than 62% 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 Harsha Dam
The primary purpose of Harsha 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 Gale Harsha (private). It impounds the Tr-slater Creek near Kellogg.
The dam stands 28 feet tall and stretches 300 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 07/20/1977. That was over 49 years ago.
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Location
| State | Iowa |
| County | Jasper |
| Nearest City | Kellogg |
| River/Stream | Tr-slater Creek |
| Coordinates | 41.71970, -92.94810 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 300 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 34 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 | Gale Harsha |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/20/1977 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01584 |
| Federal ID | IA01584 |
| More Info | State Dam Safety Program |