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, � ( �• <br /> 0� ' <br /> Silver Lake Morteaee <br /> Storm Water Detention Vault <br /> DESIGN CRITERIA <br /> Soil Cover: 12" minimum to 24" maximum <br /> Lid Loading: HS20-44 and 150 psf live load <br /> Assumed not to act concurrently with truck loading <br /> Foundations: Design is based on the following assumed values: <br /> Soil Unit Weight = 125 pcf <br /> EFW = 50 pcf( restrained—drained ) <br /> 300 pcf passive - ultimate <br /> Fbrg = 3000 psf <br /> Foot:ng— Subgrade friction coefficient = 0.45 <br /> Rebar: Grade 60 <br /> Concrete: f c= 3000 psi walls and footings <br /> Lid: Pre-cast Pre-stressed Hollow Core Plank 12-1/2" thick <br /> 4 <br />