Over 40 years of wildfire-ignition data across 11 western U.S. states showed that national forest areas classified as “roadless” didn’t burn more than national forest land with roads, further fueling discussion around the Department of Agriculture Secretary Brooke Rollins’ intent to repeal the 2001 “Roadless Rule.”
Rollins has stated that the nation’s protected forests need to be opened to new road construction, development and logging in order to reduce the risk of wildfires. Rollins has also labeled the rule as an “absurd obstacle to properly managing our forests.”
Researchers out of Oregon State University explicitly cited the USDA’s wildfire-based claims for repealing the 2021 Roadless Rule as the reason behind why they analyzed four decades of fire research. Previous studies have highlighted the ecological benefits of roadless areas, including the conservation of biodiversity and supporting clean air and water quality, and the researchers argue those benefits are why it is important for decision-makers to critically evaluate proposed rationales for overturning the Roadless Rule.
Their study, published on Sept. 8, compiled fire severity and extent data to evaluate fire patterns across developed lands, inventoried roadless areas (IRAs), and wilderness. The fire severity data was sourced from the Monitoring Trends in Burn Severity program, an interagency effort between the US Geological Survey and Forest Service that uses Landsat satellite imagery to map the extent and severity of all large fires from 1984 to the present.
The researchers found inventoried roadless areas burned at an estimated 1.13 times the annual rate of developed lands between 1984 and 2023. The annual burn rate of inventoried roadless areas dropped to 0.89 times the annual rate of developed lands when measured between 2014 and 2023.
“Our analysis indicates that IRAs across western states’ NFS land are not associated with a significantly greater rate of burning – or a greater rate of moderate and high-severity fire – relative to roaded or developed lands,” the researchers said in the study. “It is possible that burn rates in IRAs [inventoried roadless areas] are stabilizing as fires encounter previously burned areas with less fuel to burn. However, it is more likely that there is simply no consistent, quantifiable difference between patterns of fire in IRAs and the roaded and developed portion of the NFS landscape at the spatial and temporal scales we evaluated.”
The researchers did identify a landscape with a very high burn rate, but it would be unaffected by the Roadless Rule’s repeal. Congressionally designated wilderness areas burned at almost double the annual rate of inventoried roadless areas or developed lands, which they attributed to significant constraints on suppression resource availability during fire seasons and the low prioritization remote wilderness areas receive for both initial attack and containment.
Public comment on removing the 2001 Roadless Area Conservation Rule has been extended to October 6, 2026. Go to this USDA page for more information and to Comment.
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