Dams in Maricopa County, Arizona
52Total Dams
44High Hazard
2Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| New Waddell Dam | High | Not Available | 440 | Flood Risk Reduction | 1992 |
| Theodore Roosevelt Dam | High | Not Available | 357 | Hydroelectric | 1911 |
| Bartlett Dam | High | Not Available | 309 | Water Supply | 1939 |
| Horse Mesa Dam | High | Not Available | 305 | Hydroelectric | 1927 |
| Mormon Flat Dam | High | Not Available | 224 | Hydroelectric | 1926 |
| Stewart Mountain Dam | High | Not Available | 210 | Hydroelectric | 1930 |
| Horseshoe Dam | High | Not Available | 202 | Irrigation | 1946 |
| Painted Rock Dam - Saddle Dike 1 | High | Not Available | 181 | Flood Risk Reduction | 1960 |
| Cave Buttes | High | Satisfactory | 118 | Flood Risk Reduction | 1980 |
| Adobe | High | Satisfactory | 89 | Flood Risk Reduction | 1982 |
| North Heights (no. 11) | High | Satisfactory | 59 | Flood Risk Reduction | 1976 |
| Sunridge Canyon (no. 7) | High | Satisfactory | 56 | Flood Risk Reduction | 1972 |
| White Tanks #3 | High | Satisfactory | 55 | Flood Risk Reduction | 1956 |
| Sunnycove | High | Satisfactory | 51 | Flood Risk Reduction | 1975 |
| Hesperus Wash (no. 36) | High | Satisfactory | 49 | Flood Risk Reduction | 1973 |
| Harquahala Frs | High | Satisfactory | 49 | Flood Risk Reduction | 1982 |
| Buckeye Frs #1 | High | Poor | 49 | Flood Risk Reduction | 1974 |
| Casandro Wash | High | Satisfactory | 47 | Flood Risk Reduction | 1996 |
| Palo Verde Evaporation Pond No. 3 | High | Satisfactory | 45 | Other | 2009 |
| Signal Butte Frs | High | Satisfactory | 45 | Flood Risk Reduction | 1988 |
| Thunderbird Park Reservoir | High | Satisfactory | 44 | Water Supply | 1985 |
| Dreamy Draw | High | Satisfactory | 42 | Flood Risk Reduction | 1973 |
| Aspen (no. 6) | High | Satisfactory | 42 | Flood Risk Reduction | 1973 |
| Palo Verde Evaporation Pond #2 | High | Satisfactory | 39 | Other | 1987 |
| Fountain Lake | High | Satisfactory | 38 | Other | 1970 |
| Stoneridge (no. 19) | High | Satisfactory | 38 | Flood Risk Reduction | 1973 |
| West Park | High | Satisfactory | 38 | Flood Risk Reduction | 1974 |
| Guadalupe | High | Satisfactory | 37 | Flood Risk Reduction | 1975 |
| Golden Eagle Park (no. 4) | High | Satisfactory | 37 | Flood Risk Reduction | 1973 |
| New River Dam - Dike No. 1 | High | 36 | Flood Risk Reduction | 1986 | |
| Mcmicken | High | Fair | 35 | Flood Risk Reduction | 1956 |
| Reach 11 Detention Dike 1 | High | Not Available | 35 | 1977 | |
| Palo Verde Evaporation Pond #1 | High | Satisfactory | 34 | Other | 1981 |
| Buckeye Frs #3 | High | Satisfactory | 34 | Flood Risk Reduction | 1975 |
| East Park | High | Satisfactory | 33 | Flood Risk Reduction | 1974 |
| Sunset | High | Satisfactory | 32 | Flood Risk Reduction | 1977 |
| North Mountain Flood Detention #3 | High | Satisfactory | 32 | Flood Risk Reduction | 1975 |
| Saddleback Frs | High | Fair | 31 | Flood Risk Reduction | 1982 |
| Phoenix Detention Basin #7 | High | Satisfactory | 31 | Flood Risk Reduction | 1978 |
| White Tanks #4 | High | Satisfactory | 30 | Flood Risk Reduction | 1956 |
| Spook Hill | High | Satisfactory | 27 | Flood Risk Reduction | 1979 |
| Buckeye Frs #2 | High | Satisfactory | 26 | Flood Risk Reduction | 1975 |
| Plains Lpg Dam | High | Satisfactory | 23 | Other | 1977 |
| Red Mountain Freeway Levee | High | Satisfactory | 16 | Flood Risk Reduction | 2008 |
| Gillespie | Significant | Fair | 66 | Irrigation | 1921 |
| Rio Salado Town Lake | Significant | Satisfactory | 40 | Recreation | 1997 |
| Cave Creek | Low | Not Rated | 120 | Flood Risk Reduction | 1923 |
| Camp Dyer Diversion | Low | Not Rated | 81 | Irrigation | 1926 |
| Granite Reef Diversion Dam | Low | Not Available | 29 | Irrigation | 1908 |
| Mesquite Generating Station Evaporation Ponds | Low | Not Rated | 19 | Other | 2003 |
| Cortez Tank | Low | Not Rated | 15 | Fire Protection, Stock, Or Small Fish Pond | |
| Gila Bend Wwtp | Low | Not Rated | 12 | Other | 1995 |