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The geospatial data product described here provides foundational information which address the Risk Management Principles described in Forest Service Manual 5131. FS Manual 5131 - Wildfire Doctrine and Principles
5131.3 - Risk Management Principles
The wildfire response environment is complex, presenting significant effects on public health and safety, and possesses inherent hazards that can result in harm to firefighters engaged in wildfire response operations, even with reasonable mitigation. 1. The Forest Service is committed to the aggressive management of risk. 2. Apply a risk management process to minimize the exposure and effects of the inherent hazards in wildfire response while maximizing the opportunities to achieve management objectives. 3. Maintaining state of the art decision support systems based on the best available science is essential for making sound decisions on how to manage all wildland fire to achieve Land Resource Management Plan objectives, including public and Agency personnel safety.
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| summary:
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The geospatial data product described here provides foundational information which address the Risk Management Principles described in Forest Service Manual 5131. FS Manual 5131 - Wildfire Doctrine and Principles
5131.3 - Risk Management Principles
The wildfire response environment is complex, presenting significant effects on public health and safety, and possesses inherent hazards that can result in harm to firefighters engaged in wildfire response operations, even with reasonable mitigation. 1. The Forest Service is committed to the aggressive management of risk. 2. Apply a risk management process to minimize the exposure and effects of the inherent hazards in wildfire response while maximizing the opportunities to achieve management objectives. 3. Maintaining state of the art decision support systems based on the best available science is essential for making sound decisions on how to manage all wildland fire to achieve Land Resource Management Plan objectives, including public and Agency personnel safety.
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USDA Forest Service, Fire and Aviation Management, Strategic Analytics Branch
USDA Forest Service, Rocky Mountain Research Station
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thumbnail/thumbnail.png
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5000
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["ArcGIS Server","Data","Image Service","Service"]
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| description:
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<div style='text-align:Left;'><div><div><p><span>Snags are a hazard to firefighters that has traditionally been managed at the field level through scouting, rapid assessment, and mitigation by avoidance or by elimination though felling. Widespread wildfires and insect/disease disturbances have resulted in an accumulation of snags across many forested landscapes, raising the risk of injury or death for firefighters and other forest workers. The National Snag Hazard Map (Riley et al. 2022) is intended to provide a landscape level view of current snag hazard to encourage awareness, assessment, and planning to mitigate snag-related risks. The National Snag Hazard Map is based on the estimated density and median height of snags greater than or equal to 7.9-in diameter at breast height and at least 10-ft tall. Snag density and median snag height are classified into hazard levels based on the logic that hazard increases with snag density and height (Dunn et al. 2019).</span></p><p><span>Snag hazard is a landscape level decision support tool intended to help firefighters consider the magnitude and spatial distribution of snag hazard in their incident response strategy planning. Valid uses include identifying areas of higher snag hazard on the landscape that may require extra mitigation for safe operation, or that could be avoided to reduce risk to firefighters. The snag hazard map is not meant for tactical planning. A rating of low snag hazard does not mean that no overhead hazards are present and should not be interpreted as judgement that an area is safe to occupy. Conditions should always be verified in the field. Maintaining high situational awareness for overhead hazards is recommended regardless of the snag hazard rating.</span></p><p><span>Dunn CJ, O’Connor CD, Reilly MJ, Calkin DE, Thompson MP (2019) Spatial and temporal assessment of responder exposure to snag hazards in post-fire environments. Forest Ecology and Management 441, 202-2014. DOI:10.1016/j.foreco.2019.03.035Riley KL, O’Connor CD, Dunn CJ, Haas JR, Stratton RD, Gannon B (2022) A national map of snag hazard to reduce risk to wildland fire responders. Forests 13, 1160. DOI:10.3390/f13081160</span></p></div></div></div>
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<div style='text-align:Left;'><div><div><p><span>The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly. </span></p><p><span>Additionally, the U.S. Forest Service waives copyright and related rights in the work worldwide through the CC0 (which can be found at https://creativecommons.org/public-domain/cc0/). </span></p><p><span>In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, sex, disability, age, marital status, family/parental status, income derived from a public assistance program, political beliefs, or reprisal or retaliation for prior civil rights activity, in any program or activity conducted or funded by USDA (not all bases apply to all programs). Remedies and complaint filing deadlines vary by program or incident. </span></p><p><span>Persons with disabilities who require alternative means of communication for program information (e.g., Braille, large print, audiotape, American Sign Language, etc.) should contact the State or local Agency that administers the program or contact USDA through the Telecommunications Relay Service at 711 (voice and TTY). Additionally, program information may be made available in languages other than English. </span></p><p><span>To file a program discrimination complaint, complete the USDA Program Discrimination Complaint Form, AD-3027, found online at How to File a Program Discrimination Complaint and at any USDA office or write a letter addressed to USDA and provide in the letter all of the information requested in the form. To request a copy of the complaint form, call (866) 632-9992. Submit your completed form or letter to USDA by: (1) mail: U.S. Department of Agriculture, Office of the Assistant Secretary for Civil Rights, 1400 Independence Avenue, SW, Mail Stop 9410, Washington, D.C. 20250-9410; (2) fax: (202) 690-7442; or (3) email: program.intake@usda.gov. </span></p><p><span>USDA is an equal opportunity provider, employer, and lender. </span></p></div></div></div>
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USFS_EDW_SAB_NationalSnagHazard
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Image Service
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["fire","environment","USFS","USDA Forest Service","Snag","Snag Hazard","National","Open Data","2025","hazard"]
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en-US
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USFS_EDW_SAB_NationalSnagHazard
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WGS_1984_Web_Mercator_Auxiliary_Sphere
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