What are the design criteria for projects in Sammamish?
Ground Snow Load: 25 lb. Wind Speed: 85/70 mph Seismic Design Category: D2 Weathering: Moderate Frost Line Depth: 12 in. Winter Design Temp.: 26o F. Air Freezing Index: 145 Mean Annual Temp.: 50o F. Wind Exposure Categories: Upland: Exposure B Beaver and Pine Lakes: Exposure B Lake Sammamish: Exposure C Kzt is site specific (ASCE 7-05. Sec. 6.5.7) Assumed Soil Bearing: 1500 psf (geotechnical verification is required for soil bearing greater than 1500 psf) Concrete strength: exposed and exterior concrete is required to be 3000 psi minimum due to moderate weathering potential in Sammamish.
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