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Flash Flood — Boulder, CO

Jul 17, 2011

A deluge of heavy rain occurred in and around Nederland when the storm dumped nearly 2 inches of rain in 30 minutes. The heavy rainfall washed out hillsides and dirt roads. In Nederland, a culvert became blocked with debris and forced the water to spread into a nearby bookstore. The rainfall also damaged several residential roads in the Sunnyside Subdivision and Navajo Road became impassable. Several homes suffered flood damage as the runoff from a nearby Beaver Creek jumped its banks and fl

Source: NOAA National Weather Service Storm Events Database (event 338836). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Boulder, CO

This event is one of many recorded floods in Boulder County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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