Document stormwater infrastructure issues and obstructed waterways across the North Shore of Oʻahu following the March 2026 Kona lows. For best results, enable Location Services for your camera app in Settings.

How to use:

1. Tap any structure, conduit, canal, or stream on the map
2. Click Report Issue in the popup
3. Select the issue type, severity, and add photos
4. Submit — works offline too

Users can tap anywhere on the map to report ponding or land drainage issues.

Data layers:

• Stormwater structures, conduits, and basins (City & County of Honolulu)
• Drainage canals and ditches (Hawaiʻi DLNR)
• Perennial and intermittent streams (DLNR DAR)
• Wetlands (USFWS National Wetlands Inventory)

Built for North Shore flood response by Supersistence