13Total Dams
0High Hazard
1Significant
Dam Safety in O'Brien County, Iowa
O'Brien County has 13 dams tracked in the National Inventory of Dams. Another 1 carry a significant hazard classification.
The average dam in O'Brien County is 55 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Iowa Noname34 at 46 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Dog Creek Dam | Significant | Fair | 43 | Other | 1967 |
| Iowa Noname34 | Low | Not assessed | 46 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Maurer Dam | Low | Not assessed | 43 | Grade Stabilization | 2000 |
| Wheeler Dam | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| East Waterman Creek Subwatershed 2425 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Jalas Dam | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Innes Jalas Subwatershed Site 3-1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Mill Creek Lake Dam | Low | Satisfactory | 29 | Recreation | 1934 |
| Waterman-spring Subwtrshd Site 1 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Riedmann Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Bryant Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Brown Dam | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 2004 |
| Brown Dam | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1970 |