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 1–25 of 172
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Zonia Southwest Holding Tank Yavapai County | 42 | — | Low | Not Rated |
| Woods Canyon Coconino County | 43 | 1956 | Low | Not Rated |
| Willow Springs Coconino County | 80 | 1970 | Low | Not Rated |
| White Road Basin Pinal County | 8 | 1995 | Low | Not Rated |
| White Mountain Apache County | 16 | 1929 | Low | Not Rated |
| Whitehorse Dam Coconino County | 31 | 1938 | Low | Not Rated |
| West Well Control Dam Cochise County | 22 | 1966 | Low | Fair |
| West Halfway Detention Dam Graham County | 21 | — | Low | Fair |
| West Doubtful Detention Dam Cochise County | 32 | 1968 | Low | Fair |
| Upper Chalk Tank Cochise County | 41 | 2002 | Low | Not Rated |
| Upper Centennial Control Structure La Paz County | 50 | 1956 | Low | Not Rated |
| Unnamed Tank Graham County | 11 | — | Low | Not Rated |
| Udall Apache County | 24 | 1910 | Low | Not Rated |
| Tyler Reservoir Apache County | 9 | 1929 | Low | Not Rated |
| Twin Tanks Pima County | 24 | — | Low | Not Rated |
| Tremaine Reservoir Coconino County | 30 | 1952 | Low | Fair |
| Town of Eagar Wwtp Apache County | 7 | 1983 | Low | Not Rated |
| Tonto Dam Apache County | 40 | 1964 | Low | Not Rated |
| Tom Tank Coconino County | 14 | — | Low | Not Rated |
| The Lake Pima County | 31 | — | Low | Not Rated |
| Taylor Wwtp (Basins 1 & 2) Navajo County | 10 | — | Low | Not Rated |
| Sweetwood (K4) Coconino County | 18 | — | Low | Not Rated |
| Swale Tank Dam Mohave County | 27 | — | Low | Not Rated |
| Sunnyside Apache County | 13 | 1912 | Low | Not Rated |
| Stockton Hill Mohave County | 37 | 1997 | Low | Not Rated |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.