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HomeMy WebLinkAboutDiamond Hills Golf Course Preliminary Engineering Investigation DIAMOND HILL GOLF COURSE HYDROLOGY AND DRAINAGE STUDY March 24, 2000 Prepared For: Dennis Lee Desert Dunes Golf Course 19 -300 Palm Dr. Desert Hot Springs, CA 92240 '. Prepared By: 1ober? CBeirt,GWilliam %est (.&Z 54ssociates Professional Engineers, Planners & Surveyors P.O. Box 57057, 14725 Alton Parkway, Irvine, CA 92619 (949) 472 -3505 Fax: (949) 472 -8122 Contact Persons: '.S Jun Wang`' Andy Gong RBP JN 10-033100 . c> c DIAMOND HILLS GOLF COURSE APPENDIX I AES Multi -Storm Analysis Computer Output 6 25 -Year 25 -Year, 24 hours Max. Loss Low Loss 24 hour Nodes Detention Basin Tc (min) Lag Tc (min) Lab Tc (hr) Rate (in /hr) Fraction C Storm Event 1000 -1002 1001.5 22.2 17 1 0 0 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 20.65 16.52 0.28 0.811 0.836 1005 - 1009.2 1009.2 22.41 17.928 0.30 0.547 0.58 1010 - 1009.3 1013 27.69 22.152 0.37 0.588 0.62 930 -934 931 17.2 13.76 0.23 0.817 0.842 1015 -911 911 18.34 14.672 0.24 0.627 0.658 1030 -915 915 22.5 18 0.30 0.748 0.775 10 -Year 10 -Year, 24 hour Max. Loss Low Loss 24 hour Nodes Detention Basin Tc (min) Lag Tc (min) La Tc (hr) Rate (in/hr) Fraction Storm Event 1000 -1002 1001.5 22.9 18.32 0 .31 0.678 0.731 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 21.21 16.968 0.28 0.811 0.849 1005 - 1009.2 1009.2 23.06 18.448 0.31 0.547 0.615 1010 - 1009.3 1013 28.56 22.848 0.38 0.588 0.644 930 -934 931 17.3 13.84 0.23 0.817 0.854 1015 -911 911 18.53 14.824 0.25 0.627 0.686 1030 -915 915 22.96 18.368 0.31 0.748 _ 0.792 5 -Year 5 -Year, 24 hour Max. Loss Low Loss 24 hour Nodes Detention Basin Tc (min) Lag Tc (min) Lag Tc (hr) Rate (in/hr) Fraction Storm Event 1000 -1002 1001.5 23.7 18.96 0.32 0.678 0.761 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 21.81 17.448 0.29 0.811 0.86 1005 - 1009.2 1009.2 23.76 19.008 0.32 0.547 0.663 1010 - 1009.3 1013 29.53 23.624 0.39 0.588 0.675 930 -934 931 17.5 14 0.23 0.817 0.865 1015 -911 911 18.77 15.016 0.25 0.627 0.723 1030 -915 915 23.44 18.752 0.31 0.748 0.811 2 -Year 2 -Year, 24 hour Max. Loss Low Loss 24 hour Nodes Detention Basin Tc (min) Lag Tc (min) Lag Tc (hr) Rate (in/hr) Fraction Storm Event 1000 -1002 1001.5 25.8 20.64 0.34 0.678 0.818 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 23.26 18.608 0.31 0.811 0.88 1005 - 1009.2 1009.2 25.51 20.408 0.34 0.547 0.757 1010 - 1009.3 1013 32.01 25.608 0.43 0.588 0.736 930 -934 931 17.9 14.32 0.24 0.817 0.883 1015 -911 911 19.4 15.52 0.26 0.627 0.794 1030 -915 915 24.54 19.632 0.33 0.748 0.845 c 100 -Year 100 -Year, 72 hour Max. Loss Low Loss 72 hour Nodes Detention Basin Tc (min) Lag Tc (min) La Tc (hr) Rate (in /hr) Fraction C Storm Event 10 -100 1001.5 17.6 14.0 0.23 0.678 0.928 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 19.4 15.52 0.26 0.811 0.92 1005 - 1009.2 1009.2 21.99 17.592 0.29 0.542 0.936 1010 - 1009.3 1013 21.73 17.384 0.29 0.588 0.855 930 -934 931 16.9 13.52 0.23 0.817 0.92 1015 -911 911 18.03 14.424 0.24 0.627 0.931 1030 -915 915 18.78 15.024 0.25 0.748 0.914 100 -Year 100 -Year, 48 hour Max. Loss Low Loss 48 hour Nodes Detention Basin Tc (min) Lag Tc (min) La Tc (hr) Rate (in /hr) Fraction Storm Event 1000 -1002 1001.5 17.6 14.08 b .23 0.678 0.836 1003.2 - - - - - 1003.3 - - - - - 1003- 1003.6 1003.4 - - - - - 1003.5 19.4 15.52 0.26 0.811 0.886 1005 - 1009.2 1009.2 21.99 17.592 0.29 0.547 0.787 1010 - 1009.3 1013 21.73 17.384 0.29 0.588 0.755 930 -934 931 16.9 13.52 0.23 0.817 0.888 1015 -911 911 18.03 14.424 0.24 0.627 0.817 1030 -915 915 18.78 15.024 0.25 0.748 0.856 100 -Year 100 -Year, 24 hour Max. Loss Low Loss 24 hour Nodes Detention Basin Tc (min) Lag Tc (min) Lag Tc (hr) Rate (in /hr) Fraction Storm Event 1000 -1002 1001.5 17.6 14.08 0.23 0.678 0.636 1003.2 - - - - - 1003.3 - - - - - 1003 - 1003.6 1003.4 - - - - - 1003.5 19.4 15.52 0.26 0.811 0.786 C 1005 - 1009.2 1009.2 21.99 17.592 0.29 0.547 0.488 1010 - 1009.3 1013 21.73 17.384 0.29 0.588 0.551 930 -934 931 16.9 13.52 0.23 0.817 0.793 1015 -911 911 18.03 14.424 0.24 0.627 0.578 1030 -915 915 18.78 15.024 0.25 0.748 0.717 0 c DIAMOND HILLS GOLF COURSE AES Multi -Storm Analysis 100 -Year 24 Hour Storm Event c c