Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: Historical 5yr Inundation Depth Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: Historical 5yr Velocity Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 5yr Inundation Depth Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 5yr Velocity Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 5yr Inundation Depth Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 5yr Velocity Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: Historical 10yr Inundation Depth Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: Historical 10yr Velocity Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 10yr Inundation Depth Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 10yr Velocity Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 10yr Inundation Depth Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 10yr Velocity Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: Historical 50yr Inundation Depth Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: Historical 50yr Velocity Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 50yr Inundation Depth Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 50yr Velocity Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 50yr Inundation Depth Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 50yr Velocity Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: Historical 100yr Inundation Depth Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: Historical 100yr Velocity Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 100yr Inundation Depth Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 100yr Velocity Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 100yr Inundation Depth Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 100yr Velocity Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: Historical 500yr Inundation Depth Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: Historical 500yr Velocity Stillaguamish Basin North Fork
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 500yr Inundation Depth Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 500yr Velocity Stillaguamish Basin North Fork 2040
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Description: A 2D HEC-RAS hydraulic model was developed, calibrated, and applied to evaluate river-related flooding through the Snohomish River watershed. Floodplain conditions were characterized within the study area for historical, mid-century (2040-2069), and late-century (2070-2099) time periods. For each time period, The calibrated model was run to produce flood depths, velocities, water surface elevations, and inundation extents, for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood events. For more information visit: <a href="https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish">https://snohomishcountywa.gov/DocumentCenter/View/81632/Hydraulic-and-Hydrologic-Modeling-Report---Snohomish</a>
Name: 500yr Inundation Depth Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.
Name: 500yr Velocity Stillaguamish Basin North Fork 2080
Display Field:
Type: Raster Layer
Geometry Type: null
Description: The Snohomish County Department of Conservation and Natural Resources, Surface Water Management Division (County) tasked Watershed Science and Engineering to characterize current hydraulic conditions along the Stillaguamish River and assess the impacts of projected climate change on flood depths and inundation extents across the floodplain. The study area included approximately 18 miles of the mainstem Stillaguamish River from its mouth near Port Susan to the confluence of the North and South Forks near Arlington, approximately 35 miles of the North Fork Stillaguamish River from the confluence to a location colloquially called “River’s End”, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.