Laserfiche WebLink
<br />, <br />, <br />! <br />i <br />I <br />i <br />, <br />i <br />i <br />i <br /> <br />I <br />~ <br /> <br />f <br />! <br /> <br />T<lble 6. CUHP Calibrated Parameters <br /> <br />Parameter Description Value <br />Basin Area 2.93 [mi"] <br />l3asin Length 3.46 [mil <br />Distance to Centroid 1.728 [mil <br />Impervious Area 40[%] <br />Slope 0.0083 [tuft] <br />Unit Duration 5 [min] <br />Maximum Pervious Retention 0.35 [in] <br />Maximum Impervious 0.065 [in] <br />Retention <br />I nitial I nfiltration Rate (fj) 4.5 or 3.0 [in/hr] <br />Horton's Decay 0.0018 [sec.'] <br />Final Infiltration Rate (fa) 0.6 or 0.5 [in/hr] <br /> <br />Representative comparisons of the AMS data and CUHP predicted peak <br />flow for Gumbel and log-normal distributions using 40 percent imperviousness <br />and SCS class B soils are presented in graphs 5 and 6, respectively. <br /> <br />Application and Evaluation of CUHP <br /> <br />Page 16 of 52 <br />