Dams in San Juan County, Colorado
2Total Dams
0High Hazard
0Significant
Dam Safety in San Juan County, Colorado
San Juan County has 2 dams tracked in the National Inventory of Dams.
The average dam in San Juan County is 96 years old. The most common purpose is water supply. The tallest dam is Highland Mary at 28 ft.
Explore more: Oldest dams in Colorado · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Highland Mary | Low | Satisfactory | 28 | Water Supply | 1903 |
| Duck Slough | Low | Satisfactory | 24 | Fish and Wildlife Pond | 1956 |