Central Detention, located in Graham, Arizona, is a crucial flood risk reduction structure designed by the USDA NRCS and completed in 1948.
Wind
Humidity
This earth dam stands at 22 feet high and spans 1650 feet, holding a storage capacity of 1190 acre-feet along the Central Wash. Despite its vital purpose, the dam is marked with a high hazard potential and poor condition assessment, emphasizing the urgent need for maintenance and upgrades to ensure its effectiveness in mitigating flooding in the region.
Operated by the Arizona Department of Water Resources, Central Detention is subject to state regulation, permitting, inspection, and enforcement. The dam's spillway, uncontrolled outlet gates, and unmanaged overflow raise concerns for its structural integrity and its ability to handle a maximum discharge of 2100 cubic feet per second. With its location in a high-risk area and the moderate risk assessment rating, it is essential for authorities and stakeholders to prioritize risk management measures and emergency preparedness to safeguard the surrounding community and environment.
As water resource and climate enthusiasts monitor Central Detention's condition and effectiveness in flood control, the collaboration between local government and private stakeholders becomes paramount in addressing the dam's maintenance needs and ensuring its long-term resilience. With the involvement of the Arizona Department of Water Resources and the USDA NRCS, there is an opportunity to implement sustainable solutions that enhance the dam's performance, reduce risks, and protect the Central Wash watershed for future generations.
Year Completed |
1948 |
Dam Length |
1650 |
Dam Height |
22 |
River Or Stream |
CENTRAL WASH |
Primary Dam Type |
Earth |
Surface Area |
62 |
Hydraulic Height |
22 |
Drainage Area |
6.17 |
Nid Storage |
1190 |
Structural Height |
32.5 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
33 |
| Location | Reservations | Toilets |
|---|---|---|
Roper Lake State Park
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Columbine Corrals
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Columbine Corrals Campground
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Cunningham
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Cunningham Campground
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Upper Hospital Flat Dispersed Camping Area
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