Alpine Sanitary
Alpine Sanitary is an earth dam located in Apache County, Arizona, built in 1980. It carries a Significant hazard potential classification and has a fair condition assessment.
About Alpine Sanitary
Alpine Sanitary is a dam in Apache, Arizona. The dam is owned by Alpine Sanitary District (private). It impounds the Offstream near Residence.
The dam stands 9 feet tall and stretches 2,414 feet across, creates a reservoir covering 17 acres, and has a storage capacity of 142 acre-feet. Completed in 1980, the structure is 46 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/28/2022.
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Location
| State | Arizona |
| County | Apache |
| Nearest City | Residence |
| River/Stream | Offstream |
| Coordinates | 33.83968, -109.14139 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 2,414 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 142 acre-ft |
| Normal Storage | 142 acre-ft |
| Surface Area | 17 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | ALPINE SANITARY DISTRICT |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/28/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | AZ00321 |
| Federal ID | AZ00321 |
| More Info | State Dam Safety Program |