SNOFLO
 


SPOOK HILL

RESERVOIR LEVELS
Rock, Soil Dam Salt River - Tr
May 8, 2025


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Spook Hill, located in Mesa, Arizona, is a fascinating earth dam constructed in 1979 by the USDA NRCS for flood risk reduction along the Salt River. This local government-owned structure stands at a height of 27 feet, with a dam length of 21,120 feet and a storage capacity of 4,250 acre-feet. The dam's primary purpose is flood risk reduction, providing critical protection to the surrounding area in Maricopa County.

Despite its satisfactory condition assessment, Spook Hill poses a high hazard potential due to its uncontrolled spillway and outlet gates. The dam's risk assessment is rated as moderate, emphasizing the importance of regular inspections and maintenance to ensure its continued effectiveness in mitigating flood risks. The Arizona Department of Water Resources plays a key role in regulating, inspecting, and enforcing safety measures for the dam, highlighting the state's commitment to water resource management and climate resilience in the region.

With its intriguing design and vital role in flood risk reduction, Spook Hill serves as a testament to the importance of infrastructure in safeguarding communities against natural disasters. As water resource and climate enthusiasts, the unique features and regulatory oversight of this earth dam offer valuable insights into the intersection of engineering, environmental stewardship, and public safety in managing water resources in Arizona.

Year_Completed 1979
Dam_Height 15
River_Or_Stream SALT RIVER - TR
Dam_Length 21120
Primary_Dam_Type Earth
Surface_Area 305
Hydraulic_Height 15
Drainage_Area 16.3
Nid_Storage 4250
Structural_Height 27
Outlet_Gates Uncontrolled
Hazard_Potential High
Foundations Rock, Soil
Nid_Height 27
       

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