Arizona Dams
376 dams tracked by the National Inventory of Dams
Total Dams
376
High Hazard
159
42.3%
Poor / Unsatisfactory
44
Average Age
71 yrs
Hazard Classification
High159 (42.3%)
Significant38 (10.1%)
Low172 (45.7%)
Condition Assessment
Satisfactory97 (25.8%)
Fair49 (13.0%)
Poor / Unsatisfactory44 (11.7%)
Not Rated186 (49.5%)
Federal
112
State
36
Local
83
Private
127
Tallest Dams
- Glen Canyon Dam710 ft
- New Waddell Dam440 ft
- 1 West400 ft
- Theodore Roosevelt Dam357 ft
- Sierrita350 ft
High Hazard Dams
- Glen Canyon DamHigh
- New Waddell DamHigh
- Theodore Roosevelt DamHigh
- SierritaHigh
- Parker DamHigh
Poor Condition Dams
- ElgoPoor
- JaquesPoor
- Fool HollowPoor
- Black CanyonPoor
- Walnut CanyonPoor
All Dams in Arizona
Showing 151–175 of 376
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| New Waddell Dam Maricopa County | 440 | 1992 | High | Not Available |
| New Town #2 Greenlee County | 62 | 1945 | Significant | Fair |
| New River Dam Maricopa County | 105 | 1985 | High | Satisfactory |
| Nelson Tank Yavapai County | 20 | — | Low | Not Rated |
| Nelson Apache County | 34 | 1890 | Low | Not Rated |
| Nazlini Apache County | 21 | — | Undetermined | Not Available |
| Navajo Trail Coconino County | 10 | — | High | Not Rated |
| Navajo Evap Pond 60-2 Coconino County | 50 | 1980 | Low | Not Rated |
| Murphy Reservoir Pima County | 60 | 1987 | High | Satisfactory |
| Morton Coconino County | 17 | 1943 | Low | Not Rated |
| Mormon Flat Dam Maricopa County | 224 | 1926 | High | Not Available |
| Morelos Diversion Dam Yuma County | 37 | 1950 | Significant | Fair |
| Mineral Park Tailings Dam Mohave County | 200 | — | Significant | Not Available |
| Mineral Park Flood Control Basin Mohave County | 43 | 1995 | Low | Not Rated |
| Mill Pond Navajo County | 30 | 1996 | Low | Not Rated |
| Millett Swale Navajo County | 35 | 1958 | High | Poor |
| Mexican Water Apache County | 23 | — | High | Not Rated |
| Mexican Tank Yavapai County | 27 | 1930 | Low | Not Rated |
| Mexican Hay Lake Apache County | 11 | 1908 | Low | Not Rated |
| Mesquite Generating Station Evaporation Ponds Maricopa County | 19 | 2003 | Low | Not Rated |
| Mesa Reservoir Yavapai County | 35 | 1935 | Low | Not Rated |
| Menager'S Pima County | 30 | 1927 | High | Unsatisfactory |
| Mcmicken Maricopa County | 35 | 1956 | High | Fair |
| Mclellan Coconino County | 33 | 1907 | Low | Not Rated |
| Mclaws | 12 | — | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.