Browse Dams
393 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 393 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Howard | Arizona | Graham | 49 | High | Fair | 1975 | Flood Risk Reduction |
| Buckeye FRS #1 | Arizona | Maricopa | 49 | High | Poor | 1974 | Flood Risk Reduction |
| Upper Lake Mary | Arizona | Coconino | 49 | Significant | Satisfactory | 1941 | Recreation |
| Hesperus Wash (No. 36) | Arizona | Maricopa | 49 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Harquahala FRS | Arizona | Maricopa | 49 | High | Satisfactory | 1982 | Flood Risk Reduction |
| Stockton Wash Retarding | Arizona | Graham | 48 | High | Poor | 1964 | Flood Risk Reduction |
| No Name Wash | Arizona | Graham | 48 | High | Satisfactory | 1977 | Flood Risk Reduction |
| Frye Creek Retarding | Arizona | Graham | 48 | High | Satisfactory | 1962 | Flood Risk Reduction |
| Arivaca | Arizona | Pima | 48 | Significant | Fair | 1970 | Fish and Wildlife Pond |
| Asarco 82 | Arizona | Gila | 48 | Significant | Satisfactory | 1983 | Other |
| City | Arizona | Coconino | 47 | High | Satisfactory | 1902 | Water Supply |
| Casandro Wash | Arizona | Maricopa | 47 | High | Satisfactory | 1996 | Flood Risk Reduction |
| Sycamore Dam | Arizona | Pima | 47 | Significant | Not Rated | 1939 | |
| Steel Dam | Arizona | Coconino | 46 | Low | Not Rated | 1898 | Water Supply |
| Round Rock | Arizona | Apache | 46 | High | Satisfactory | 1900 | Fire Protection, Stock, Or ... |
| Lebanon Reservoir #1 (Upper) | Arizona | Graham | 45 | Significant | Fair | 1910 | Irrigation |
| Lower Rose Canyon | Arizona | Pima | 45 | Low | Not Rated | 1958 | Fish and Wildlife Pond |
| Palo Verde Evaporation Pond No. 3 | Arizona | Maricopa | 45 | High | Satisfactory | 2009 | Other |
| Signal Butte FRS | Arizona | Maricopa | 45 | High | Satisfactory | 1988 | Flood Risk Reduction |
| Boulder Flood Basin | Arizona | Yavapai | 45 | Low | Not Rated | 1983 | Other |
| Riggs Flat | Arizona | Graham | 45 | Low | Not Rated | 1951 | Recreation |
| Continental #1 | Arizona | Coconino | 44 | High | Satisfactory | 1972 | Irrigation |
| Haralson | Arizona | Graham | 44 | High | Satisfactory | 1919 | Water Supply |
| Thunderbird Park Reservoir | Arizona | Maricopa | 44 | High | Satisfactory | 1985 | Water Supply |
| Kaibab | Arizona | Coconino | 44 | Low | Not Rated | 1934 | Recreation |
| Laguna Diversion Dam | Arizona | Yuma | 43 | Low | Not Available | 1909 | Debris Control |
| Mineral Park Flood Control Basin | Arizona | Mohave | 43 | Low | Not Rated | 1995 | Flood Risk Reduction |
| Dogtown | Arizona | Coconino | 43 | Significant | Fair | 1934 | Fish and Wildlife Pond |
| Woods Canyon | Arizona | Coconino | 43 | Low | Not Rated | 1956 | Fish and Wildlife Pond |
| Santa Fe | Arizona | Coconino | 42 | High | Satisfactory | 1892 | Water Supply |
| Dreamy Draw | Arizona | Maricopa | 42 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Powerline | Arizona | Pinal | 42 | High | Fair | 1967 | Flood Risk Reduction |
| Aspen (No. 6) | Arizona | Maricopa | 42 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Point of Pines | Arizona | Graham | 42 | High | Poor | 1966 | Recreation |
| Continental #2 | Arizona | Coconino | 42 | High | Satisfactory | 1974 | Irrigation |
| Zonia Southwest Holding Tank | Arizona | Yavapai | 42 | Low | Not Rated | - | Other |
| Bootleg | Arizona | Navajo | 41 | High | Unsatisfactory | 1965 | Recreation |
| Horseshoe Cienega | Arizona | Apache | 41 | High | Fair | 1964 | Recreation |
| Upper Chalk Tank | Arizona | Cochise | 41 | Low | Not Rated | 2002 | Fire Protection, Stock, Or ... |
| Reach 11 Detention Dike 2 | Arizona | Maricopa | 40 | High | Not Available | 1977 | Flood Risk Reduction |
| Aspc-Safford Effluent Pond | Arizona | Graham | 40 | Low | Not Rated | 1992 | Irrigation |
| Number 4 | Arizona | Pima | 40 | High | Not Available | - | Tailings |
| A-1 | Arizona | Apache | 40 | High | Poor | 1966 | Recreation |
| Canyon Diablo | Arizona | Coconino | 40 | Low | Poor | 1966 | Flood Risk Reduction |
| Reach 11 Detention Dike 4 | Arizona | Maricopa | 40 | High | Not Available | 1977 | Flood Risk Reduction |
| Tonto Dam | Arizona | Apache | 40 | Low | Not Rated | 1964 | Recreation |
| Many Farms Dike Bc | Arizona | Apache | 40 | Undetermined | Fair | 1943 | Irrigation |
| Rio Salado Town Lake | Arizona | Maricopa | 40 | Significant | Satisfactory | 1997 | Recreation |
| Ganado | Arizona | Apache | 40 | High | Satisfactory | 1919 | Irrigation |
| Hassayampa Check | Arizona | Yavapai | 40 | Low | Not Rated | 1936 | Recreation |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.