Town launches detailed review of Sonoqui Wash after residents report dangerous changes
The town of Gilbert is conducting a study of nearly two miles of the Sonoqui Wash after officials identified sediment buildup and areas of the channel that are shallow, undefined or blocked — conditions the town says can increase flooding and erosion during heavy storms.
The review will map how water currently moves through the wash and assess how future stormwater flows, as identified in a regional drainage study, might affect capacity. Town officials say the results will pinpoint specific problem segments and guide decisions about improvements to reduce flood risk and protect nearby neighborhoods.
Residents describe swift, dangerous flood behavior
Just south of the study area, resident Michele Sanders said she has watched the wash transform over the years and worries about rapid rises during storms. She told reporters that when rain begins, water can come "like a raging river," and that people may not realize how quickly conditions turn hazardous.
"People don't realize how quick the water comes like a raging river, and then it ends up here, and it's too late. People don't know that their children are in danger when that happens," Sanders said.
Sanders also described erosion that has altered the wash's shape and created new safety concerns for anyone near the channel.
What the study will address
The town says the study will:
- Track current water movement through the wash
- Identify areas where sediment or blockages reduce channel capacity
- Account for projected stormwater flows from regional drainage work
- Recommend targeted improvements to reduce future flooding and erosion
| Study focus | Expected outcome |
|---|---|
| Channel shape and depth | Identify shallow or undefined reaches needing work |
| Sediment and blockages | Prioritize removal or stabilization to restore flow |
| Future stormwater flows | Ensure capacity for projected conditions |
Officials say the findings will help Gilbert home in on problem spots and decide how to proceed with improvements along Sonoqui Wash. The study is framed as a preventive measure intended to reduce risk, protect public safety and preserve infrastructure amid evolving weather patterns and urban development pressures.
For residents near the wash, the study is expected to clarify which sections are most vulnerable and what forms of mitigation — from debris removal to channel stabilization or other engineering work — might be needed. Michele Sanders summed up why she supports the effort: "It's a good thing to help, maybe save a life or two."
As the town moves forward, residents should watch for public meetings or updates from Gilbert on study findings and any proposed construction or maintenance plans that could affect access, property or local drainage.
