Dams in Arizona

%!s(int=375)Total Dams

159High Hazard

38Significant

171Low Hazard

Dam Safety in Arizona

Arizona has 375 dams tracked in the National Inventory of Dams. Of these, 159 (42%) are classified as high hazard — meaning failure would probably cause loss of human life — and 38 are classified as significant hazard. Currently, 44 dams in the state have a condition assessment of poor or unsatisfactory, indicating recognized safety deficiencies.

The average dam in Arizona is 71 years old. As dams age, inspection frequency and maintenance become increasingly important for ensuring public safety. The most common purpose for dams in Arizona is flood risk reduction, accounting for 98 of the state's dams.

Use the search above to find dams near any address in Arizona, or browse by county below. Each dam listing includes its hazard potential classification, condition assessment, physical characteristics, and inspection history from the NID.

Arizona Dam Facts

Total Dams	375
High Hazard Dams	159
Average Dam Age	71 years
Tallest Dam	710 ft
Largest Reservoir	25,025,826 acre-ft
Poor/Unsatisfactory Condition	44

Notable Dams in Arizona

Glen Canyon Dam710 ftHigh New Waddell Dam440 ftHigh 1 West400 ftLow Theodore Roosevelt Dam357 ftHigh Sierrita350 ftHigh

Counties in Arizona

Apache77 dams24 high hazard Cochise12 dams3 high hazard Coconino47 dams15 high hazard Gila7 dams3 high hazard Graham51 dams23 high hazard Greenlee7 dams1 high hazard La Paz4 dams2 high hazard Maricopa52 dams44 high hazard McKinley1 dams1 high hazard Mohave17 dams3 high hazard Navajo25 dams12 high hazard Pima18 dams9 high hazard Pinal15 dams9 high hazard Riverside1 dams Santa Cruz4 dams2 high hazard Yavapai35 dams8 high hazard Yuma2 dams

High Hazard Dams in Arizona

Dam	County	Height	Condition	Purpose
Glen Canyon Dam	Coconino	710 ft	Not Available	Hydroelectric
New Waddell Dam	Maricopa	440 ft	Not Available	Flood Risk Reduction
Theodore Roosevelt Dam	Maricopa	357 ft	Not Available	Hydroelectric
Sierrita	Pima	350 ft	Not Available	Tailings
Parker Dam	La Paz	320 ft	Not Available	Hydroelectric
Bartlett Dam	Maricopa	309 ft	Not Available	Water Supply
Horse Mesa Dam	Maricopa	305 ft	Not Available	Hydroelectric
Alamo Dam	Mohave	283 ft	Not Available	Flood Risk Reduction
Coolidge	Gila	250 ft	Fair	Irrigation
4 West	Graham	226 ft	Not Available	Tailings
Mormon Flat Dam	Maricopa	224 ft	Not Available	Hydroelectric
Stewart Mountain Dam	Maricopa	210 ft	Not Available	Hydroelectric
Horseshoe Dam	Maricopa	202 ft	Not Available	Irrigation
Davis Dam	Mohave	200 ft	Not Available	Hydroelectric
Number 7	Pima	189 ft	Not Available	Tailings
Painted Rock Dam - Saddle Dike 1	Maricopa	181 ft	Not Available	Flood Risk Reduction
C.c. Cragin Dam	Coconino	170 ft	Not Available	Hydroelectric
Lake Patagonia	Santa Cruz	157 ft	Satisfactory	Recreation
Ab-bc	Pinal	150 ft	Not Available	Tailings
Whitlow Ranch Dam - Saddle Dike 1	Pinal	149 ft	Not Available	Flood Risk Reduction
Blue Canyon	Apache	142 ft	Satisfactory	Water Supply
Elgo	Graham	133 ft	Poor	Recreation
Schoens	Navajo	118 ft	Satisfactory	Flood Risk Reduction
Cave Buttes	Maricopa	118 ft	Satisfactory	Flood Risk Reduction
Frye Mesa	Graham	107 ft	Satisfactory	Water Supply
Willow Creek	Yavapai	99 ft	Satisfactory	Irrigation
Granite Creek	Yavapai	98 ft	Satisfactory	Irrigation
Lower Chase Creek	Greenlee	94 ft	Satisfactory	Other
Lynx Lake	Yavapai	89 ft	Satisfactory	Fish and Wildlife Pond
Adobe	Maricopa	89 ft	Satisfactory	Flood Risk Reduction
Jaques	Navajo	81 ft	Poor	Other
Parker Canyon	Cochise	80 ft	Fair	Recreation
Cholla Fly Ash Pond	Navajo	80 ft	Satisfactory	Other
Fool Hollow	Navajo	78 ft	Poor	Recreation
Pena Blanca	Santa Cruz	78 ft	Fair	Fish and Wildlife Pond
Clearwell Reservoir	Pima	77 ft	Satisfactory	Water Supply
Billingsley Dam	Graham	76 ft	Fair	Flood Risk Reduction
Upper Goldwater	Yavapai	76 ft	Satisfactory	Recreation
Lower Goldwater	Yavapai	73 ft	Satisfactory	Water Supply
Cholla Bottom Ash Pond	Navajo	73 ft	Satisfactory	Other
Black Canyon	Navajo	72 ft	Poor	Recreation
Lee	Graham	71 ft	Satisfactory	Flood Risk Reduction
Walnut Canyon	Coconino	70 ft	Poor	Irrigation
Little Hell's Canyon	Yavapai	70 ft	Satisfactory	Other
Headgate Rock	La Paz	70 ft	Satisfactory	Irrigation
Foote Wash	Graham	67 ft	Satisfactory	Flood Risk Reduction
Chesley-wamslee	Graham	65 ft	Satisfactory	Flood Risk Reduction
Tsaile	Apache	65 ft	Satisfactory	Irrigation
Wheatfields	Apache	64 ft	Poor	Irrigation
Murphy Reservoir	Pima	60 ft	Satisfactory	Water Supply
Lyman Dam	Apache	60 ft	Fair	Irrigation
North Heights (no. 11)	Maricopa	59 ft	Satisfactory	Flood Risk Reduction
Sunrise	Apache	58 ft	Poor	Recreation
River Reservoir #3	Apache	58 ft	Satisfactory	Irrigation
Davis (hawley Lake)	Apache	58 ft	Unsatisfactory	Recreation
Daggs	Navajo	57 ft	Fair	Irrigation
Sunridge Canyon (no. 7)	Maricopa	56 ft	Satisfactory	Flood Risk Reduction
Indian Farms	Graham	55 ft	Satisfactory	Flood Risk Reduction
White Tanks #3	Maricopa	55 ft	Satisfactory	Flood Risk Reduction
Reservation	Apache	54 ft	Poor	Recreation
Masonry #2	Coconino	51 ft	Satisfactory	Fish and Wildlife Pond
Sunnycove	Maricopa	51 ft	Satisfactory	Flood Risk Reduction
Cyclone	Apache	50 ft	Poor	Recreation
Howard	Graham	49 ft	Fair	Flood Risk Reduction
Grant Morris	Graham	49 ft	Satisfactory	Flood Risk Reduction
Fredonia	Coconino	49 ft	Poor	Flood Risk Reduction
Hesperus Wash (no. 36)	Maricopa	49 ft	Satisfactory	Flood Risk Reduction
Harquahala Frs	Maricopa	49 ft	Satisfactory	Flood Risk Reduction
Buckeye Frs #1	Maricopa	49 ft	Poor	Flood Risk Reduction
Christmas Tree	Apache	49 ft	Unsatisfactory	Recreation
Stockton Wash Retarding	Graham	48 ft	Poor	Flood Risk Reduction
No Name Wash	Graham	48 ft	Satisfactory	Flood Risk Reduction
Frye Creek Retarding	Graham	48 ft	Satisfactory	Flood Risk Reduction
Casandro Wash	Maricopa	47 ft	Satisfactory	Flood Risk Reduction
City	Coconino	47 ft	Satisfactory	Water Supply
Round Rock	Apache	46 ft	Satisfactory	Fire Protection, Stock, Or Small Fish Pond
Palo Verde Evaporation Pond No. 3	Maricopa	45 ft	Satisfactory	Other
Signal Butte Frs	Maricopa	45 ft	Satisfactory	Flood Risk Reduction
Haralson	Graham	44 ft	Satisfactory	Water Supply
Thunderbird Park Reservoir	Maricopa	44 ft	Satisfactory	Water Supply
Continental #1	Coconino	44 ft	Satisfactory	Irrigation
Santa Fe	Coconino	42 ft	Satisfactory	Water Supply
Dreamy Draw	Maricopa	42 ft	Satisfactory	Flood Risk Reduction
Aspen (no. 6)	Maricopa	42 ft	Satisfactory	Flood Risk Reduction
Continental #2	Coconino	42 ft	Satisfactory	Irrigation
Point Of Pines	Graham	42 ft	Poor	Recreation
Powerline	Pinal	42 ft	Fair	Flood Risk Reduction
Bootleg	Navajo	41 ft	Unsatisfactory	Recreation
Horseshoe Cienega	Apache	41 ft	Fair	Recreation
Number 4	Pima	40 ft	Not Available	Tailings
Ganado	Apache	40 ft	Satisfactory	Irrigation
A-1	Apache	40 ft	Poor	Recreation
Palo Verde Evaporation Pond #2	Maricopa	39 ft	Satisfactory	Other
Tufa Stone	Gila	39 ft	Unsatisfactory	Flood Risk Reduction
Horsethief	Yavapai	38 ft	Not Rated	Recreation
Fountain Lake	Maricopa	38 ft	Satisfactory	Other
Earl Park	Apache	38 ft	Poor	Recreation
Stoneridge (no. 19)	Maricopa	38 ft	Satisfactory	Flood Risk Reduction
Short Creek Southside #1	Mohave	38 ft	Fair	Irrigation
Apache Junction Frs	Pinal	38 ft	Satisfactory	Flood Risk Reduction