Dams in Jefferson County, Colorado
86Total Dams
29High Hazard
11Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Cheesman | High | Satisfactory | 221 | Water Supply | 1905 |
| Ralston | High | Satisfactory | 204 | Water Supply | 1937 |
| Fortune | High | Satisfactory | 134 | Water Supply | 2001 |
| Blunn | High | Satisfactory | 125 | Water Supply | 1979 |
| Standley Lake | High | Satisfactory | 123 | Irrigation | 1913 |
| Genesee No. 2 | High | Satisfactory | 103 | Water Supply | 2008 |
| Wellington | High | Fair | 84 | Irrigation | 1895 |
| Bear Creek Dam - South Embankment | High | Not Available | 65 | Flood Risk Reduction | 1979 |
| Lookout Mountain | High | Satisfactory | 60 | Water Supply | 1903 |
| Maple Grove | High | Satisfactory | 59 | Water Supply | 1956 |
| Magic Mountain #1 | High | Not Rated | 56 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Evergreen | High | Fair | 50 | Water Supply | 1927 |
| Woman Creek | High | Satisfactory | 50 | Flood Risk Reduction | 1995 |
| Leyden | High | Satisfactory | 47 | Flood Risk Reduction | 1902 |
| Main | High | Satisfactory | 46 | Irrigation | 1908 |
| Upper Long Lake | High | Unsatisfactory | 46 | Water Supply | 1939 |
| Fairmount Reservoir | High | Satisfactory | 43 | Water Supply | 1993 |
| Smith | High | Unsatisfactory | 40 | Irrigation | 1908 |
| Morrison Raw Water | High | Satisfactory | 40 | Water Supply | 1982 |
| Bergen East | High | Satisfactory | 40 | Irrigation | 1874 |
| Harriman | High | Satisfactory | 38 | Irrigation | 2013 |
| Willow Springs #1 | High | Fair | 31 | Water Supply | 1963 |
| Ketner | High | Satisfactory | 30 | Recreation | 1961 |
| Tucker Lake - North Dam | High | Satisfactory | 29 | Irrigation | 1906 |
| Tucker Lake - South Dam | High | Satisfactory | 29 | Irrigation | 1899 |
| Polly A. Deane | High | Unsatisfactory | 28 | Irrigation | 1908 |
| Hyatt | High | Unsatisfactory | 24 | Irrigation | 1863 |
| East | High | Satisfactory | 21 | Irrigation | 1910 |
| Lower Long Lake | High | Unsatisfactory | 19 | Water Supply | 1939 |
| Harwood's Storage Reservoir | Significant | Satisfactory | 36 | Recreation | 1955 |
| Pomona No. 2 And No. 3 | Significant | Satisfactory | 34 | Recreation | 1972 |
| Meadowview | Significant | Satisfactory | 30 | Water Supply | 2004 |
| Beers Sisters Lake | Significant | Satisfactory | 27 | Irrigation | 1966 |
| Bowles #1 | Significant | Satisfactory | 25 | Irrigation | 1973 |
| Bergen West | Significant | Fair | 25 | Irrigation | 1888 |
| Kendrick | Significant | Satisfactory | 22 | Irrigation | 1922 |
| Lockport | Significant | Fair | 20 | Water Supply | 1984 |
| Devinney | Significant | Satisfactory | 19 | Irrigation | 2006 |
| Johnston | Significant | Satisfactory | 17 | Irrigation | 1974 |
| Carmody | Significant | Satisfactory | 8 | Recreation | 1974 |
| Quaintance | Low | Not Rated | 62 | Recreation | 1984 |
| D.o.e. Rocky Flats B-5 | Low | Not Available | 57 | Flood Risk Reduction | 1979 |
| Timberline | Low | Fair | 55 | Recreation | |
| D.o.e. Rocky Flats A-4 | Low | Not Available | 54 | Flood Risk Reduction | 1979 |
| Augmentation Pond #6 | Low | Not Rated | 47 | Water Supply | 1989 |
| Hiwan #6 | Low | Satisfactory | 46 | Irrigation | 1963 |
| D.o.e. Rocky Flats C-2 | Low | Not Available | 45 | Other | 1979 |
| Duke Lake | Low | Satisfactory | 41 | Water Supply | 1972 |
| Hiwan #4 | Low | Fair | 37 | Recreation | 1963 |
| Rolling | Low | Fair | 37 | Irrigation | 1966 |
| 6th Avenue W. Pond #3 | Low | Not Rated | 37 | Flood Risk Reduction | 1974 |
| Francis Smart | Low | Not Rated | 36 | Irrigation | 1892 |
| Genesee No. 1 | Low | Not Rated | 34 | Other | 1975 |
| Gayno | Low | Satisfactory | 33 | Water Supply | 1977 |
| Platte Canyon | Low | Fair | 32 | Water Supply | 1904 |
| Maxwell Creek | Low | Fair | 31 | Water Supply | 1982 |
| Platte Canyon Intake | Low | Unsatisfactory | 31 | Water Supply | 1964 |
| West Jefferson | Low | Fair | 30 | Water Supply | 1982 |
| Soda Lake #1 | Low | Fair | 30 | Water Supply | 1977 |
| Mcintyre Gulch | Low | Satisfactory | 28 | 1982 | |
| Oberon Lake No. 1 | Low | Not Rated | 28 | Flood Risk Reduction | 1887 |
| Bear Creek No. 4 | Low | Not Rated | 25 | Recreation | 1984 |
| Bergen West Dike | Low | Not Rated | 25 | Irrigation | 1888 |
| Ken Caryl Detention #2 | Low | Satisfactory | 23 | Flood Risk Reduction | 1984 |
| Tepper No. 1 | Low | Not Rated | 22 | Recreation | 1912 |
| Kenney's Run Detention #2 | Low | Not Rated | 22 | Irrigation | 2002 |
| Bergen #5 | Low | Fair | 21 | Fire Protection, Stock, Or Small Fish Pond | 1908 |
| Grant B | Low | Fair | 19 | Irrigation | 1910 |
| West Meadows #2 | Low | Fair | 17 | Recreation | 1983 |
| West Meadows #1 | Low | Fair | 17 | Recreation | 1983 |
| Union #2 | Low | Fair | 17 | Recreation | 1982 |
| Mann | Low | Satisfactory | 15 | Recreation | 1877 |
| Soda Lake #2 | Low | Fair | 15 | Water Supply | 1977 |
| Last Chance No. 1 | Low | Fair | 14 | Irrigation | 1892 |
| Ward #1 | Low | Not Rated | 13 | Irrigation | 1888 |
| Fairview #2 | Low | Satisfactory | 13 | Irrigation | 1892 |
| Broad | Low | Satisfactory | 13 | Irrigation | 1870 |
| Henry's Lake | Low | Satisfactory | 12 | Recreation | 1972 |
| Fairview # 1 | Low | Satisfactory | 12 | Irrigation | 1871 |
| Upper Mount Olivet | Low | Not Rated | 12 | Irrigation | 1966 |
| Mower | Low | Not Rated | 11 | Fish and Wildlife Pond | 1885 |
| Baehr | Low | Fair | 11 | Irrigation | 1948 |
| Marston Lake - West Dike | Low | Not Rated | 11 | Water Supply | 1899 |
| Churches | Low | Not Rated | 9 | Irrigation | 1868 |
| Crown Hill Cemetery | Low | Not Rated | 9 | Irrigation | 1908 |
| Pomona Lake No. 1 | Low | Not Rated | 9 | Flood Risk Reduction | 1902 |