{
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 "snippet": "Two separate two-dimensional HEC-RAS hydraulic models were developed, calibrated, and applied to evaluate hydraulic conditions throughout the Stillaguamish Watershed. One model covers the mainstem Stillaguamish River from the confluence of the North and South Forks to the mouth near Port Susan, and a second model covers the Forks of the Stillaguamish upstream of their confluence. 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://www.snohomishcountywa.gov/DocumentCenter/View/103312/Hydraulic-and-Hydrologic-Modeling-Report-and-Appendices---Stillaguamish\">https://www.snohomishcountywa.gov/DocumentCenter/View/103312/Hydraulic-and-Hydrologic-Modeling-Report-and-Appendices---Stillaguamish<\/a>",
 "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 \u201cRiver\u2019s End\u201d, and approximately 5 miles of the South Fork Stillaguamish River from the confluence to Rivers Meadows County Park.",
 "summary": "Two separate two-dimensional HEC-RAS hydraulic models were developed, calibrated, and applied to evaluate hydraulic conditions throughout the Stillaguamish Watershed. One model covers the mainstem Stillaguamish River from the confluence of the North and South Forks to the mouth near Port Susan, and a second model covers the Forks of the Stillaguamish upstream of their confluence. 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://www.snohomishcountywa.gov/DocumentCenter/View/103312/Hydraulic-and-Hydrologic-Modeling-Report-and-Appendices---Stillaguamish\">https://www.snohomishcountywa.gov/DocumentCenter/View/103312/Hydraulic-and-Hydrologic-Modeling-Report-and-Appendices---Stillaguamish<\/a>",
 "title": "Hydraulic & Hydrologic Modeling in the Stillaguamish Watershed: LateCentury 500yr-Velocity (Max).Terrain_Forks_Final.ForksFinal",
 "tags": [
  "Stillaguamish",
  "Flood",
  "Modeling",
  "Hydraulics"
 ],
 "type": "",
 "typeKeywords": [],
 "thumbnail": "",
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 "minScale": 0,
 "maxScale": 0,
 "spatialReference": "",
 "accessInformation": "Watershed Science and Engineering",
 "licenseInfo": "All maps, data, and information set forth herein (\u201cData\u201d), are for illustrative purposes only and are not to be considered an official citation to, or representation of, the Snohomish County Code. Amendments and updates to the Data, together with other applicable County Code provisions, may apply which are not depicted herein. Snohomish County makes no representation or warranty concerning the content, accuracy, currency, completeness or quality of the Data contained herein and expressly disclaims any warranty of merchantability or fitness for any particular purpose. All persons accessing or otherwise using this Data assume all responsibility for use thereof and agree to hold Snohomish County harmless from and against any damages, loss, claim or liability arising out of any error, defect or omission contained within said Data. Washington State Law, Ch. 42.56 RCW, prohibits state and local agencies from providing access to lists of individuals intended for use for commercial purposes and, thus, no commercial use may be made of any Data comprising lists of individuals contained herein."
}