Geospatial Toolkit for Rapid Assessment of Post-Wildfire Sedimentation Risks to Infrastructure

David, Scott R; Belmont, Patrick; Murphy, Brendan

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Geospatial Toolkit for Rapid Assessment of Post-Wildfire Sedimentation Risks to Infrastructure

2025-04-01
By David, Scott R ; Belmont, Patrick ; Murphy, Brendan

File Language:

English

Details

Creators:

David, Scott R ; Belmont, Patrick ; Murphy, Brendan
Corporate Creators:

Utah State University. Department of Watershed Sciences
Corporate Contributors:

Utah Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Disaster Preparedness Disaster Resilience Erosion Geospatial Data Infrastructure Risk Assessment Sedimentation Wildfires
Publication/ Report Number:

UT-25.14
Resource Type:

Tech Report
Geographical Coverage:

Utah ; United States
Edition:

Final August 2022-May 2025
Corporate Publisher:

Utah Department of Transportation
Abstract:

The UDOT Post-Wildfire Geohazard Assessment Toolkit is a GIS-based toolset designed to evaluate post-wildfire sediment hazards. The toolkit integrates precompiled geospatial datasets with user-supplied burn severity data to estimate debris flow probability, sediment production, and sediment delivery to river networks. The geospatial toolkit includes Direct Geohazard Impact Tools, which predicts debris flow triggering rainfall intensities and sediment volumes, and Downstream Impact Tools, which determine how much sediment is delivered to rivers from hillslope erosion and debris flows. The toolkit outputs spatially attributed datasets that integrated into 1-D watershed scale sediment transport models such as the Network Sediment Transporter (NST). To demonstrate its effectiveness, the toolkit was applied to five wildfire-impacted transportation corridors in Utah, identifying high-risk areas for sediment impacts. Results indicate that the toolkit provides a streamlined and scientifically robust method for assessing post-fire geohazards, supporting transportation agencies in emergency response planning and risk mitigation.
Format:

PDF
Funding:

23-8121
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:ca6be1288e8e828efd52559b12c67ff50f51ffd0f5b7c2e5d9262f60af20447803dbad7e1a170d64b6e95528b299d507737db214f37dfc0cf36a73ab64102a98
Download URL:

https://rosap.ntl.bts.gov/view/dot/85295/dot_85295_DS1.pdf
File Type:

[PDF - 5.92 MB ]

File Language:

English

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