Engineering Division, Flood Control and Dam Safety

The following map viewers are frequently used to determine a property’s flood risk:

Hawaii Flood Hazard Assessment Tool (DLNR)

Hawaii Dam Inventory System (DLNR)

National Flood Hazard Layer (FEMA)	Hawaii General Flood Control Plan (DLNR)	Hawaii Sea Level Rise Map (PacIOOS)
Oahu Dam Evacuation Planning Tool (CCHon)	Honolulu Preliminary Flood Map (2024)	Hawaii Tsunami Evacuation Zone Maps (HiEMA)