| http://www.w3.org/ns/prov#value | - The effect of this change will be that in large areas of the country the wind pressure will increase by 12% or more and other areas it will decrease by approximately 15% to 40% (see figure below, Note: this figure should not be used for design purposes).Percent Change in Wind Pressure, 1994 vs. 2001 AASHTOCopyright © 2004, Valmont Industries, Inc.
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