Lebanon Reservoir #1 (upper)

About Lebanon Reservoir #1 (upper)

The primary purpose of Lebanon Reservoir #1 (upper) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Arizona State Land Department;lebanon Reservoir & Ditch Co. (private). It impounds the Marijilda Wash - Os near Safford.

The dam stands 45 feet tall and stretches 570 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 147 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1910, the structure is over a century 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. An emergency action plan is in place for this dam. The most recent inspection on record was 12/27/2023.

At 45 feet, this dam is taller than 91% of dams nationwide.

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