13Total Dams
1High Hazard
5Significant
Dam Safety in Dubuque County, Iowa
Dubuque County has 13 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 5 carry a significant hazard classification.
The average dam in Dubuque County is 31 years old. The most common purpose is flood risk reduction. The tallest dam is Mississippi River Lock and Dam 11 at 43 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Carter Road Stormwater Detention Dam | High | Fair | 41 | Recreation | 2004 |
| Mississippi River Lock and Dam 11 | Significant | Not assessed | 43 | Navigation | 1937 |
| Seippel Road Dam | Significant | Not assessed | 34 | Flood Risk Reduction | 2000 |
| Southeast Dam (dubuque) | Significant | Fair | 24 | Flood Risk Reduction | 2000 |
| West 32nd St Stormwater - Upper Dam | Significant | Satisfactory | 23 | Flood Risk Reduction | 2009 |
| West 32nd St Stormwater - Lower Dam | Significant | Satisfactory | 8 | Flood Risk Reduction | 2009 |
| White Dam | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 2007 |
| Ken Southworth Jr. Dam | Low | Not assessed | 36 | Grade Stabilization | 2014 |
| Hoffman Dam | Low | Not assessed | 30 | Flood Risk Reduction | 2022 |
| Phillips Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| Lake Eleanor Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Hess Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Mines of Spain Wetland Development Dam | Low | Not assessed | 11 | Recreation | 1996 |