DARWin(tm) - Pavement Design <br />A Proprietary AASHTOWARE(tm) <br />Computer Software Product <br />Flexible Structural Design Module <br />GeoPacific Engineering, Inc. <br />14835 SW 72nd Avenue <br />Portland, OR 97224 <br />Michael T. Baker <br />Project Description <br />18-4986 177 Day Island Road - Private Drive / Parking Lot - New Pavement <br />Section <br />Flexible Structural Design Module Data <br />18-kip ESALs Over Initial Performance Period: 26,624 <br />Initial Serviceability: 4.2 <br />Terminal Serviceability: 2.5 <br />Reliability Level (o): 85 <br />Overall Standard Deviation: .5 <br />Roadbed Soil Resilient Modulus (PSI): 5,000 <br />Stage Construction: 1 <br />Calculated Structural Number: 2.18 <br />Specified Layer Design <br />Layer: <br />Material Description: <br />Structural Coefficient (Ai): <br />Drainage Coefficient (Mi): <br />Layer Thickness (Di) (in): <br />Calculated Layer SN: <br />Layer: <br />Material Description: <br />Structural Coefficient (Ai): <br />Drainage Coefficient (Mi): <br />Layer Thickness (Di) (in): <br />Calculated Layer SN: <br />1 <br />1/2-0 Lv 2 HMAC <br />.42 <br />1 <br />3.00 <br />1.26 <br />2 <br />3/4-0 Crushed Rock <br />.1 <br />1 <br />2.00 <br />.20 <br />Layer: 3 <br />Material Description: 1.5-0 Crushed Rock <br />Structural Coefficient (Ai): .1 <br />Drainage Coefficient (Mi): 1 <br />Layer Thickness (Di) (in): 8.00 <br />Calculated Layer SN: .80 <br />Total Thickness (in): 13.00 <br />Total Calculated SN: 2.26 <br />