34Total Dams
3High Hazard
3Significant
Dam Safety in Story County, Iowa
Story County has 34 dams tracked in the National Inventory of Dams. Of these, 3 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Story County is 52 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Hickory Grove Lake Dam at 56 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Ames Basin #2 | High | Satisfactory | 13 | Flood Risk Reduction | 1985 |
| Ames Basin #4 | High | Satisfactory | 12 | Flood Risk Reduction | 1985 |
| Ames Basin #3 | High | Satisfactory | 10 | Flood Risk Reduction | 1985 |
| Hickory Grove Lake Dam | Significant | Satisfactory | 56 | Recreation | 1966 |
| Dakins Lake Dam | Significant | Fair | 40 | Recreation | 2014 |
| Northridge Heights Dam | Significant | Not assessed | 19 | Flood Risk Reduction | 2004 |
| Twin Anchors Lake Dam | Low | Not assessed | 42 | Recreation | 1960 |
| Black Dam | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Rolling Hills Dam #2 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Stratton Dam | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Mc Daniel Dam | Low | Not assessed | 38 | Recreation | 1963 |
| Isu Dam | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Rolling Hills Dam #1 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Arnold Lake Dam | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Readhead Dam | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1997 |
| Three D Dam | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Smith Dam | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Ballard Country Club Dam | Low | Satisfactory | 33 | Irrigation | 1974 |
| Jennett Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Hertz Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Indian Creek Country Club | Low | Not assessed | 32 | Recreation | 1981 |
| Larkin Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Elliott Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Groseclose Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Rasmussen Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Stoeffer Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Reichard Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mc Farland Lake Dam | Low | Not assessed | 27 | Recreation | 1966 |
| Carver Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Percival/putnam Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Hansen Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Olson Dam | Low | Poor | 24 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Iowa Noname50 | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Dakins Lake Dam (original Dam) | Low | Not assessed | 24 | Recreation | 1951 |