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E <br /> AMERICAN SOCIM OF CML ENOINEEAS <br /> Snow <br /> Results: <br /> Mapped Elevation: <br /> Data Source: <br /> Date Accessed: Wed Mar 29 2023 <br /> In "Case Study" areas, site-specific case studies are required to establish ground snow loads. Extreme local <br /> variations in ground snow loads in these areas preclude mapping at this scale. <br /> Ground snow load determination for such sites shall be based on an extreme value statistical analysis of data <br /> available in the vicinity of the site using a value with a 2 percent annual probability of being exceeded (50-year <br /> mean recurrence interval). <br /> Site is outside ASCE/SEI 7-16, Table 7.2-5 boundaries. For ground snow loads in this area; see SEAW Snow Load <br /> Analysis for Washington, 2nd Ed. (1995). Structural Engineers Association of Washington, Seattle, WA. <br /> Statutory requirements of the Authority Having Jurisdiction are not included. <br /> Snow load values are mapped to a 0.5 mile resolution. This resolution can create a mismatch between the mapped <br /> elevation and the site-specific elevation in topographically complex areas. Engineers should consult the local <br /> authority having jurisdiction in locations where the reported `elevation' and `mapped elevation' differ significantly <br /> from each other. <br /> REFERENCE SNOHOMISH COUNTY SNOW LOAD MAP <br /> (2018 PUBLISHED VERSION) <br /> SITE ELEVATION = 489 FT <br /> MAP ISOLINE VALUE = 0.05 <br /> GROUND SNOW LOAD = (489 FT)(0.05) = 24.5 PSF <br /> USE 25 PSF MINIMUM DESIGN SNOW LOAD <br /> https://asce7hazardtool.online/ Page 3 of 4 <br />