A report released last week by Pima County Regional Flood Control District sheds new light on the July 22 monsoon storm that sent mud and several inches of water into a dozen homes in the Casas de Abrego neighborhood in Green Valley.

According to an Aug. 26 memo from County Administrator Chuck Huckelberry, the flooding south of Duval Road east of Abrego Drive represented “the most severe damage” in Pima County during July’s record monsoon rainfall.

Map of Flooded Areas in Sahuarita:Green Valley, July 2021.png

This map shows an approximation of the area inundated by the flood events from July 22 to July 24, 2021. Red dots indicate structures that either were confirmed to have flooded or may have flooded based on field observations from Pima County Regional Flood Control District.


Pima County Regional Flood Control District contractors (KE&G) clearing vegetation in the channel downstream of the box culverts under Abrego Drive before clearing sediment from the channel.

Aerial photograph (May 2020).png

A May 2020 aerial photograph appears to show that the box culverts under Abrego Drive that convey flows in the Green Valley Drainageway #1 are partially obstructed with sediment.

Mary Glen is a North Carolina native who's excited to explore the Tucson area through her reporting with Green Valley News. She graduated from UNC-Chapel Hill's Hussman School of Journalism and Media in 2019.

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