San Simon Fan Drop Structure Detention Dam
San Simon Fan Drop Structure Detention Dam is a gravity dam located in Graham County, Arizona, built in 1953. It carries a Low hazard potential classification and has a poor condition assessment.
About San Simon Fan Drop Structure Detention Dam
The primary purpose of San Simon Fan Drop Structure Detention Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Doi Blm (federal). It impounds the San Simon River near Solomon, Az.
The dam stands 26 feet tall and stretches 4,300 feet across, creates a reservoir covering 594 acres, and has a maximum storage capacity of 900 acre-feet. Completed in 1953, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/09/2009. That was over 16 years ago.
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Location
| State | Arizona |
| County | Graham |
| Nearest City | Solomon, Az |
| River/Stream | San Simon River |
| Coordinates | 32.45927, -109.35758 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 26 ft |
| Dam Length | 4,300 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 3,373 acre-ft |
| Max Storage | 900 acre-ft |
| Normal Storage | 3,373 acre-ft |
| Surface Area | 594 acres |
| Max Discharge | 1,215 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/09/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ20026 |
| Federal ID | AZ20026 |
| More Info | State Dam Safety Program |