Manoa Stream Maintenance Project Begins to Mitigate Flood Risks
Manoa Stream Maintenance Project Begins to Mitigate Flood Risks
US · Published Aug 6, 2026
Efforts to mitigate flooding in Manoa, Hawaii, have commenced with a $9.5 million state-funded project aimed at clearing sediment, vegetation, and debris from Manoa Stream.
The initiative follows the devastating March 28 Kona-low storm that caused significant flooding, damaging schools, businesses, and homes.

Impact & Risks

The March 28 storm highlighted the vulnerability of Manoa Stream, which has a history of flooding during major rain events. Residents expressed concerns about the effectiveness of dredging and the potential for increased downstream risks. Flooding previously impacted two elementary schools, Manoa Marketplace, and homes, with damages exceeding $50,000 for some residents. The project aims to reduce flood risks and protect public infrastructure, but community members worry about long-term solutions and enforcement of stream maintenance regulations.

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