Alaska High-Water Mark Observations

A publicly available survey for residents to identify high-water marks in their communities after a flood.

The State of Alaska Division of Geological & Geophysical Surveys developed the survey below for community members to submit their own high-water mark observations to assist with emergency management and future planning.

The survey guides users through the process of collecting high-water mark data, submitting photographs, and describing flood and community history.

Link to Survey:

https://arcg.is/15T54W2

Questions? Contact: