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`'JL;JL;III <br />JVA, Incorporated <br />1319 Spruce Street <br />Boulder, CO 80302 <br />Ph: 303.444.1951 <br />Fax: 303.444.1957 <br />Job Name: Louisville Mill Site <br />500,540 and 544 County Rd, Louisville CO <br />Job Number: 2221c <br />Date: 8/20/2014 <br />By: DNS <br />5. Debris Impact Force <br />This is the force associated with flood -borne debris striking the side of a building. The formula <br />assumes a 1- second duration of impact and a weight of 1000 pounds for the object. <br />F; = W'`V <br />g*t <br />where: <br />F; = The Impact Force <br />w = The weight of the object (Ibs) <br />V = The velocity of the object (ft/sec) <br />g = The acceleration due to gravity (32.2 ft/sec2) <br />t = The duration of Impact (sec) <br />Weight of the object <br />Velocity of the Object <br />Acceleration due to Gravity <br />Duration of Impact <br />Impact Force <br />W = 1000 Ibs <br />V = 2.0 ft/sec <br />g = 32.2 ft/sec2 <br />t= 1.0 sec <br />F; = 62.1 Ibs <br />(Per FEMA 3 -93) <br />(Assumed) <br />6. Special Impact Loading <br />Per U.S. Army Corps of Engineers EP 1165 -2 -314, Section 603.2.2: The intensity of a load shall <br />be taken as 100 pounds per foot acting horizontally over a one foot wide horizontal strip <br />at the FPE or at any level below it. <br />F; = 100.0 pounds per linear foot over a 1 foot strip <br />Special Impact Force <br />F; = 100.0 Ibs /ft <br />(over one foot strip with top of strip at Flood Protection Elevation FPE) <br />(Per USACOE) <br />