34Total Dams
11High Hazard
8Significant
Dam Safety in La Plata County, Colorado
La Plata County has 34 dams tracked in the National Inventory of Dams. Of these, 11 are classified as high hazard — meaning failure would probably cause loss of human life. Another 8 carry a significant hazard classification.
The average dam in La Plata County is 63 years old. The most common purpose is irrigation. The tallest dam is Lemon Dam at 284 ft.
Explore more: Oldest dams in Colorado · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lemon Dam | High | Not assessed | 284 | Fish and Wildlife Pond | 1963 |
| Ridges Basin Dam | High | Not assessed | 273 | Water Supply | 2008 |
| Vallecito Dam | High | Not assessed | 162 | Fish and Wildlife Pond | 1941 |
| Long Hollow | High | Satisfactory | 110 | Irrigation | 2014 |
| Red Mesa Ward | High | Fair | 61 | Irrigation | 1915 |
| Johnson | High | Satisfactory | 55 | Water Supply | 1982 |
| Turner | High | Satisfactory | 46 | Recreation | 1969 |
| Durango Terminal | High | Satisfactory | 45 | Water Supply | 1954 |
| Wommer #1 | High | Fair | 38 | Water Supply | 1952 |
| Haviland Lake | High | Satisfactory | 27 | Fish and Wildlife Pond | 1927 |
| Stagecoach | High | Satisfactory | 12 | Hydroelectric | |
| Keeler | Significant | Fair | 50 | Recreation | 1945 |
| Henderson Lake | Significant | Not assessed | 33 | Fish and Wildlife Pond | 1967 |
| Duncan | Significant | Satisfactory | 31 | Other | 1978 |
| Pastorius - Main Dam | Significant | Not assessed | 27 | Irrigation | 1903 |
| Thibodeaux | Significant | Satisfactory | 18 | Recreation | |
| Pastorius - East Dike | Significant | Fair | 15 | Irrigation | 1923 |
| Griggs | Significant | Fair | 13 | Water Supply | 1999 |
| Southern Pond Open Space | Significant | Not assessed | 11 | Flood Risk Reduction | 2006 |
| Pine River Watershed P. R. 2 | Low | Not assessed | 60 | Flood Risk Reduction | 1968 |
| Pine River Watershed P. R. 1 | Low | Not assessed | 55 | Flood Risk Reduction | 1967 |
| Aspaas | Low | Satisfactory | 46 | Hydroelectric | 1980 |
| Charles Lemon R R | Low | Not assessed | 39 | Fish and Wildlife Pond | 1971 |
| Granite Dam | Low | Fair | 31 | Fish and Wildlife Pond | 1983 |
| Upper Railroad | Low | Not assessed | 29 | Irrigation | 1960 |
| Warner #5 | Low | Satisfactory | 26 | Fish and Wildlife Pond | 1970 |
| Muleshoe | Low | Not assessed | 24 | Irrigation | 1996 |
| Amber | Low | Not assessed | 23 | Irrigation | 1989 |
| Kem Lake | Low | Not assessed | 20 | Fish and Wildlife Pond | 1984 |
| Taylor | Low | Not assessed | 19 | Fish and Wildlife Pond | 1971 |
| Johnson #2 | Low | Not assessed | 18 | Irrigation | |
| Short | Low | Not assessed | 16 | Irrigation | 1940 |
| Durango #1 | Low | Not assessed | 16 | Water Supply | 1899 |
| Lake of the Pines | Low | Not assessed | 11 | Water Supply | 1920 |