Community Flood Assessment Crowdsourcing Map Launched

The City of Boulder has launched a ‘Community Flood Assessment’ crowdsourcing map to capture flood data and stories from Boulder residents and businesses.  This resident-scientist approach will empower the Boulder community to contribute to our shared learning

and documentation of this historic event. 

Community submittals are called ‘reports,’ and users can attach photos or videos to enhance their story or data submittals. The easy-to-use map creates geo-located pins associated with specific date-and-time categories like:

  • Flooding;
  • Road damage;
  • Path Damage;
  • Property Damage;
  • Debris; and
  • Overflows.

Residents are asked to backdate reports, so all users can have a better understanding of what happened and when (i.e. post data when it actually happened, not with the current date and time).

This specific data on place-and-time flooding activities will assist in the city in assessing the entire flood event and help inform future planning efforts.

The mapping application, called Crowdmap (powered by Ushahidi), was originally designed and built to crowdsource crisis information.  The mapping application can be used on a desktop computer and is also Smartphone enabled with apps for both iPhone and Android devices.

Residents are encouraged to read the Crowdmap Terms of Use and Privacy notice.  Once posted, all data, photos and videos become public domain and can be used by all site users including the City of Boulder.

For more Boulder flood information, visit or sign up for flood info updates right to your email inbox.