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Regional Sediment Bulking Methods for California in Support of Post Wildfire Flood Mitigation
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2024-09-20
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[PDF-9.73 MB]
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Edition:Final Report 06/30/2022 – 6/29/2024
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Abstract:The California Department of Transportation (Caltrans) is currently searching for a methodology to determine sediment bulking specific to Northern California. In Southern California, there are specific, existing methods and equations in use by Caltrans. Due to increased wildfire occurrence and severity in northern and southern California, a regionalized sediment bulking method for California watersheds would allow Caltrans to design better hydraulic and stormwater facilities. This prepares Caltrans for climate change and the resulting increase wildfire potential to create a more sustainable roadway design. The research will benefit Caltrans by having roadways that are more resilient and safer. The methodology can be used by local and state agencies to create safer and more sustainable infrastructure. Also, this research will provide a defensible justification and method for sizing drainage facilities that account for sediment bulked associated with wildfires.
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