ID HEC-1 run for BMP Manual --- Initial volume estimate with the ID ST-12, Detention Examples initial outlet structure configuration ID 10-YEAR 24-HOUR STORM (using ST-11 Worksheet #2) * * This example problem has 1.5 acres, CN = 90, Tc = 0.1 hour. * The basin (BA), pond volumes (SV) and pond outflows (SQ) are * multiplied by a factor of 10 to increase the precision of analysis. * In other words, the basin area is input as 0.02344 square miles (15 acres). * * Detention basin was initially sized using NRCS TR-55 methodology. * City of Knoxville - Engineering Department - Ken Oliver * May 1, 2003 * File: Hec1-ex1.dat * *DIAGRAM IT 2 01MAY03 0000 1500 2000 IN 6 IO 5 0 * * 1-year storm 2.5" * 2-year storm 3.3" * 5-year storm 4.1" * 10-year storm 4.8" * 25-year storm 5.5" * 50-year storm 6.1" * 100-year storm 6.5" * KK AREA1 Runoff into detention basin BA.02344 PB 4.8 PC 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 PC 0.010 0.012 0.013 0.014 0.015 0.016 0.017 0.018 0.020 0.021 PC 0.022 0.023 0.024 0.026 0.027 0.028 0.029 0.031 0.032 0.033 PC 0.034 0.036 0.037 0.038 0.040 0.041 0.042 0.044 0.045 0.047 PC 0.048 0.049 0.051 0.052 0.054 0.055 0.057 0.058 0.060 0.061 PC 0.063 0.065 0.066 0.068 0.070 0.071 0.073 0.075 0.076 0.078 PC 0.080 0.082 0.084 0.085 0.087 0.089 0.091 0.093 0.095 0.097 PC 0.099 0.101 0.103 0.105 0.107 0.109 0.111 0.113 0.116 0.118 PC 0.120 0.122 0.125 0.127 0.130 0.132 0.135 0.138 0.141 0.144 PC 0.147 0.150 0.153 0.157 0.160 0.163 0.166 0.170 0.173 0.177 PC 0.181 0.185 0.189 0.194 0.199 0.204 0.209 0.215 0.221 0.228 PC 0.235 0.243 0.251 0.261 0.271 0.283 0.307 0.354 0.431 0.568 PC 0.663 0.682 0.699 0.713 0.725 0.735 0.743 0.751 0.759 0.766 PC 0.772 0.778 0.784 0.789 0.794 0.799 0.804 0.808 0.812 0.816 PC 0.820 0.824 0.827 0.831 0.834 0.838 0.841 0.844 0.847 0.850 PC 0.854 0.856 0.859 0.862 0.865 0.868 0.870 0.873 0.875 0.878 PC 0.880 0.882 0.885 0.887 0.889 0.891 0.893 0.895 0.898 0.900 PC 0.902 0.904 0.906 0.908 0.910 0.912 0.914 0.915 0.917 0.919 PC 0.921 0.923 0.925 0.926 0.928 0.930 0.931 0.933 0.935 0.936 PC 0.938 0.939 0.941 0.942 0.944 0.945 0.947 0.948 0.949 0.951 PC 0.952 0.953 0.955 0.956 0.957 0.958 0.960 0.961 0.962 0.964 PC 0.965 0.966 0.967 0.968 0.970 0.971 0.972 0.973 0.975 0.976 PC 0.977 0.978 0.979 0.981 0.982 0.983 0.984 0.985 0.986 0.988 PC 0.989 0.990 0.991 0.992 0.993 0.994 0.996 0.997 0.998 0.999 PC 1.000 LS 0 90 UD .067 * KKPOND_A KM ROUTE HYDROGRAPH FROM AREA A THROUGH POND A RS 1 ELEV 955.0 0 SV 0 0.0807 0.1876 0.3230 0.4886 0.6869 0.9196 1.1887 1.4964 1.8448 SV2.2358 2.6717 3.1543 3.6859 4.2685 SQ 0.00 2.4 3.8 4.9 5.7 6.4 7.7 17.2 29.0 38.2 SQ 53.8 164.2 198.0 208.0 218.0 SE 955.0 955.5 956.0 956.5 957.0 957.5 958.0 958.5 959.0 959.5 SE 960.0 960.5 961.0 961.5 962.0 ZZ