Living in a Natural Fire Environment

The Fire Environment

Examples of Local Fire Behavior

Frequently Asked Questions About Defensible Space

Creating an Effective Defensible Space

Firescape - Fire Safe Landscape Design

Other Considerations in Making Your Home Survivable

When Wildfire Approaches

Photo courtesy CDF

Examples of Local Fire Behavior

Presented below are five types of vegetation common to our region with computer generated estimates of how they would burn under certain conditions. These predications assume a wind speed of 20 mph, flat terrain, typical moisture contents of living and dead vegetation for summertime, and normal August weather for our area. It is important to note that fire size and rate of spread is largely determined by spotting (embers/firebrands that are thrown ahead and to the sides of actively burning fires). Spotting results in smaller fires that may contribute to the main fire size and rate of spread.

Flame length eight feet. Fire travels at four and one half miles per hour. Three thousand acres can burn after one hour.

CHEATGRASS: Cheatgrass is an invasive annual grass that usually occupies areas formerly vegetated with big sagebrush. It can dominate old burned areas, abandoned pastures, and other disturbed areas.

< Return to previous page
> Go to next page

Questions? Problems? Suggestions?
Contact: Brian Ballou
Oregon Department of Forestry
(541) 665-0662

Last update: Jan. 24, 2006