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Agiotage Ltd. Alternate Access Roadoni i G : J111111-1111111111111 I IDMainiero, Smith and Associates, Inc. Planning / Civil Engineering / Land Sign :eYing 777 East Tahquitz Canyon Way, Suite 301 / Palm Springs, California 92262 -6784 Telephone (760) 320 -9811 / FAX (760) 323 -7893 • e -mail info @mainierosmith.com • www.mainierosmith.com August 29, 2000 Mr. Steve Speer CITY OF LA QUINTA Engineering Department 78 -495 Calle Tampico La Quinta, California 92253 Re: Agiotage Ltd. Again Revised Hydrology /Plans for Proposed Alternate Access Road Dear - Steve: At your request, submitted herewith for your review is a Revised Summary of - the Hydrology related to the Proposed Alternate Access Road. A conceptual plan_ and 'two .typical cross- sections for the proposed road are also enclosed. Please note that we have made the additional changes and included the additional information that you requested, i.e. revised the Q's, added the capacity of the box culvert, added the depth and capacity of the channel along the road, and added the depth of flow across the road. If you have any questions in regard to the above, or if you would like to meet to review the material, please do not hesitate to contact us. Very truly yours, Robert Mainiero, Principal Engineer RJM:cm cc: John.Green Jim Schlecht .1 AGIOTAGE LTD. ' PROPOSED ALTERNATE ACCESS ROAD Summary of Hydrology A Stormwater analysis was performed using the Riverside County Flood Control /AES unit - hydrograph program. The resulting 100 -year (Q100) stormwater flow for Tributary Area 1, as shown on the enclosed map, is 366 CFS. For Tributary Area 2, the maximum Q100 is 156 CFS. The printouts are enclosed. Typical Alternate Access Road cross - sections are also enclosed. For Tributary Area 1, it is proposed that the road be constructed at approximately existing grade from STA 24 +60 to STA 27 +00, and that the Road be depressed between STA 20 +00 and STA 24 +60 to accommodate high flow (Q100) conditions. Between STA 24 +60 and STA 27 +00, lower flows would be conveyed along the side of the proposed road in a channel of natural materials. The capacity of the low flow channel would be approximately 300 CFS without any debris. If the channel were to be free of debris, virtually all of the flow would be contained within the channel. If the channel were to be blocked with debris, the flow across the road could be as much as one foot deep. Between STA 20 +00 and STA 24 +60, for lower flow conditions, a double box culvert, 5 feet wide by 5 feet deep (each barrel) would allow the lower flows to pass under the Alternate Access Road. The capacity of the double box culvert would be in excess of 1000 CFS without any debris. If the box culvert were to be free of debris, the entire flow would pass under the Alternate Access Road. If the box culvert were to be blocked with debris, the flow over the road would be one foot deep or less. 0 � I ... i1 i tu s z —7 —12 !j AVENUE 56:; �\�, 'Y Z/ N ---NN 3722 CL Z j W .. ......... U . Z=-'J i Q7 it . .\ , \1i, \; -: , . - L j co )��r f. ^ I: �. \`���` �.. n \ \� i. j ����1\ ` t. �/� f ;!' �'%\ iii• :�. ���: �✓� .-� 1. �.... _— \ —_ —__ AVEi4UE 58 13721000-.N. 0 Gravel 28 If 5 2-, Pit If • 530000 _a ke.-Cahuil FEET County Pa, AOUEDUCT 7 2 9 I r 3720 Nx < -7 r\ e 2�- 4 0 s 32 i 33 35 7 ------- 7-- 3718 J T 6 $ ------ -------- T 7 S > 7 T 7. S/ A 01 2,000' 4,000- 6.000' 8,000. SCALE 1 "=2,000' UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC &WCD) 1978 HYDROLOGY MANUAL (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: MAINIERO, SMITH AND ASSOCIATES -- *DESCRIPTION OF RESULTS * * " Green ' AREA 1 WATERCOURSE LENGTH = 9400.000 FEET LENGTH FROM CONCENTRATION POINT TO CENTROID = 4700.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1595.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE = .040 WATERSHED AREA = 320.000 ACRES UNIT HYDROGRAPH TIME UNIT= 5.000 MINUTES MOUNTAIN S -GRAPH SELECTED UNIFORM MEAN SOIL- LOSS(INCH /HOUR) = .250 LOW SOIL -LOSS RATE PERCENT(DECIMAL) = .900 BASEFLOW = .000 CFS /SQUARE -MILE USER - ENTERED RAINFALL= 2.25 INCHES PROGRAM NUMBER 1 SELECTED WATERCOURSE "LAG' TIME = .314 HOURS UNIT INTERVAL PERCENTAGE OF LAG-TIME = 26.515 HYDROGRAPH BASEFLOW = .000 CFS RCFC &WCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) = .9987 Advanced Engineering Software [AES] SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 .,. mm. ......... ».. m ............ m.....m.........m. .......... UNIT HYDROGRAPH DETERMINATION INTERVAL "S" GRAPH UNIT HYDROGRAPH a NUMBER MEAN VALUES ORDINATES(CFS) 1 3.219 124.571 2 14.151 423.065 3 33.288 740.627 4 47.076 533.561 5 55.187 313.930 6 60.897 220.975 7 65.325 171.343 r 8 69.001 142.271 9 72.189 123.385 10 74.928 105.974 11 77.258 90.187 12 79.319 79.764 13 81.079 68.118 14 82.609 59.214 15 83.992 53.521 16 85.260 49.072 17 86.375 43.136 18 87.461 42.013 19 ' 88.519 40.961 20 89.445 35.850 21 90.292 32.766 22 91.102 31.352 23 91.890 30.502 24 92.601 27.486 25 93.284 26.443 26 93.927 24.892 27 94.545 23.894 28 95.083 20.850 29 95.600 19.995 30 96.100 19.350 31 96.600 19.350 32 97.100 19.350 33 97.600 19.350 34 98.100 19.350 35 98.600 19.350 36 99.100 19.350 37 99.600 19.350 38 100.000 15.482 UNIT UNIT UNIT EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0292 .0208 .0084 2 .0292 .0208 .0084 3 .0247 .0208 0039 4 .0337 .0208 .0129 5 .0337 .0208 .0129 6 .0404 .0208 .0196 7 .0337 .0208 .0129 8 .0404 .0208 .0196 9 .0404 .0208 .0196 10 .0337 .0208 .0129 11 .0360 .0208 .0151 12 .0404 .0208 .0196 13 .0494 .0208 .0286 14 .0494 .0208 .0286 15 .0494 .0208 .0286 16 .0449 .0208 .0241 17 .0584 .0208 .0376 18 .0607 .0208 .0398 19 .0539 .0208 .0331 20 .0607 .0208 .0398 21 .0742 .0208 .0533 22 .0697 .0208 .0488 23 .0652 .0208 .0443 24 .0674 .0208 .0466 25 .0697 .0208 .0488 26 .0944 .0208 .0735 27 .1124 .0208. .0915 28 .0787 .0208 .0578 29 .1528 .0208 .1320 30 .1640 .0208 .1432 31 .1843 .0208 .1634 32 .1326 .0208 .1117 33 .0449 .0208 .0241 34 .0404 .0208 .0196 35 .0404 .0208 .0196 36 .0135 .0121 .0013 TOTAL STORM RAINFALL(INCHES) = 2.25 TOTAL SOIL- LOSS(INCHES) _ .74 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.51 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 19.7680 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 40.1356 RCFC&WCD 3 -HOUR STORM RUNOFF HYDROGRAPH HYDROGRAPH IN FIVE - MINUTE INTERVALS(CFS) INTERVAL# VOLUME(AF) Q(CFS) 0. 100.0 200.0 300.0 400.0 1 .0072 1.04 Q 2 .0388 4.59 Q 3 .1093 10.24 VQ 4 .2052 13.93 VQ 5 .3225 17.03 VQ 6 .4876 23.98 VQ 7 .6998 30.81 V Q 8 .9534 36.82 V Q 9 1.2325 40.52 .V Q 10 1.5423 44.98 .V Q 11 1.8650 46.86 .V Q 12 2.1850 46.46 .V Q 13 2.5291 49.96. VQ 14 2.9296 58.15 .V Q 15 3.3988 68.12. V Q 16 3.9125 74.60. V Q . 17 4.4560 78.91. V Q . 18 5.0410 84.95. V Q. 19 5.6985 95.46. V Q. 20 6.4098 103.28. V Q 21 7.1629 109.35. V Q 22 7.9939 120.67. V . Q 23 8.9135 133.52. V. Q 24 9.8750 139.60. V. Q 25 10.8561 142.46. V Q 26 11.8894 150.03. V Q 27 13.0450 167.80. V Q 28 14.3785 193.63. V Q. 29 15.8827 218.41. V Q 30 17.5795 246.37. V . Q 31 19.6739 304.11. V. Q 32 22.1115 353.94. V Q 33 24.6355 366.49. V Q 34 26.8594 322.90. V . Q 35 28.5937 251.83. Q V. 36 29.9830 201.72. Q V. 37 31.1412 168.17. Q V 38 32.0917 138.02. Q V 39 32.8873 115.51. Q V 40 33.5737 99.67. Q. V 41 34.1749 87.28. Q. V 42 34.7064 77.18. Q . V 43 35.1808 68.89. Q V 44 35.6077 61.98. Q V 45 35.9953 56.28: Q V 46 36.3502 51.54. Q V 47 36.6784 47.65. Q V 48 36.9842 44.41. Q V 49 37.2703 41.54. Q V . 50 37.5360 38.57. Q V . 51 37.7826 35.81. Q V . 52 38:0133 33.50. Q V . 53 38.2297 31.42. Q V. 54 38.4318 29.34. Q V. 55 38.6199 27.32. Q V. 56 38.7951 25.43. Q V. 57 38.9586 23.74. Q V. 58 39.1100 21.98. Q V. 59 39.2499 20.32 . Q V. 60 39.3812 19.06 .Q V. 61 39.5053 18.02 .Q V. 62 39.6225 17.02 .Q V. 63 39.7323 15.94 .Q V. 64 39.8317 14.44 .Q V. 65 39.9199 12.80 .Q V. 66 39.9983 11.39 .Q V. 67 40.0589 8.79 Q V. 68 40.0998 5.94 Q V. 69 40.1203 2.98 Q V. 70 40.1283 1.16 Q V. 71 40.1332 .71 Q V. 72 40.1355 .33 Q V. 73 40.1356 '.02 Q V. I I 1 ..w ewww:.+ wwwww+ wwwwwwww w..w. w+ wwwwww. wwwr .rwwwww..w :r.wrwrwrrwwwww : :wwww ' UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL wwwwiwwr. w+. wwww+ w. rwwwe» w.w wwwww» wwrewwwwwwwwwwww +wwrwr.wrwwwwwwwwwwwwwww (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: MAINIERO, SMITH AND ASSOCIATES 11 ««««««« « « « « « « « « « « « « » » » » » » » » » » » » » » » » » »» Advanced Engineering Software [AES] SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 wwww:: wwww. www..www www» ww.. aaaa.» aawa. warwww wwe.wwww.ww.w.w.www,wwr,wwwww UNIT HYDROGRAPH DETERMINATION INTERVAL "S" GRAPH UNIT HYDROGRAPH NUMBER MEAN VALUES ORDINATES(CFS) "" "" "DESCRIPTION OF RESULTS " " "" *--* ** """' "' " " " " """ 3.219 14.151 ' Green ' 6 hour storm ' 33.288 wwww. www. wH». w. wr.,w ew: :t:wwwww :.wwwww *w.www..www.ww�� ..,,..ww. *wwwwww.w. WATERCOURSE LENGTH = 9400.000 FEET ' LENGTH FROM CONCENTRATION POINT TO CENTROID = 4700.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1595.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE _ .040 55.187 WATERSHED AREA= 320.000 ACRES UNIT HYDROGRAPH TIME UNIT = 5.000 MINUTES 60.897 MOUNTAIN S -GRAPH SELECTED ' UNIFORM MEAN SOIL- LOSS(INCH /HOUR) = .250 65.325 LOW SOIL -LOSS RATE PERCENT(DECIMAL) _ .900 BASEFLOW = .000 CFS /SQUARE -MILE USER - ENTERED RAINFALL = 3.00 INCHES PROGRAM NUMBER 5 SELECTED WATERCOURSE "LAG' TIME = .314 HOURS UNIT INTERVAL PERCENTAGE OF LAG -TIME = 26.515 ' HYDROGRAPH BASEFLOW = .000 CFS RCFCBWCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) _ .9991 11 ««««««« « « « « « « « « « « « « » » » » » » » » » » » » » » » » » »» Advanced Engineering Software [AES] SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 wwww:: wwww. www..www www» ww.. aaaa.» aawa. warwww wwe.wwww.ww.w.w.www,wwr,wwwww UNIT HYDROGRAPH DETERMINATION INTERVAL "S" GRAPH UNIT HYDROGRAPH NUMBER MEAN VALUES ORDINATES(CFS) 1 2 3.219 14.151 124.571 423.065 3 33.288 740.627 4 47.076 533.561 5 55.187 313.930 6 60.897 220.975 ' 7 65.325 171.343 8 69.001 142.271 9 72.189 123.385 10 74.928 105.974 11 77.258 90.187 12 79.319 79.764 13 81.079 68.118 14 82.609. 59.214 15 83.992 53.521 16 85.260 49.072 17 86.375 43.136 18 87.461 42.013 19 88.519 40.961 20 89.445 35.850 21 90.292 32.766 22 91.102 31.352 23. 91.890 30.502 24 92.601 27.486 25 93.284 26.443 26 93.927 24.892 27 94.545 23.894 28 95:083 20.850 29 95.600 19.995 30 96.100 19.350 31 96.600 19.350 32 97.100 19.350 33 97.600 19.350 34 98.100 19.350 35 98.600 19.350 36 99.100 19.350 37 99.600 19.350 38 100.000 15.482 a HHMyIHf f llrHffllHlffffff UNIT ffff UNIT lHlfff Hf1f 1ff UNIT f fMlf!lMflN!!!f ff fffflf f! EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0150 .0135 .0015 2 .0180 .0162 .0018 3 .0180 .0162 .0018 4 .0180 .0162 .0018 5 .0180 .0162 .0018 6 .0210 .0189 .0021 7 .0210 .0189 .0021 8 .0210 .0189 .0021 9 .0210 .0189 .0021 10 .0210 .0189 .0021 11 .0210 .0189 .0021 12 .0240 .0208 .0031 13 .0240 .0208 .0031 14 .0240 .0208 .0031 15 .0240 .0208 .0031 16 .0240 .0208 .0031 17 .0240 .0208 .0031 18 .0240 .0208 .0031 19 .0240 .0208 .0031 20 .0240 .0208 .0031 21 .0240 .0208 .0031 22 .0240 .0208 .0031 23 .0240 .0208 .0031 24 .0270 .0208 .0061 25 .0240 .0208 .0031 26 .0270 .0208 .0061 27 .0270 .0208 .0061 28 .0270 .0208 .0061 29 .0270 .0208 .0061 30 .0270 .0208 .0061 31 .0270 .0208 .0061 32 .0270 -" .0208 .0061 33 .0300 .0208 .0091 34 .0300 .0208 .0091 35 .0300 .0208 .0091 36 .0300 .0208 .0091 37 .0300 .0208 .0091 38 .0330 .0208 .0121 39 .0330 .0208 .0121 40 .0330 .0208 .0121 41 .0360 .0208 .0151 42 .0390 .0208 .0181 43 .0420 .0208 .0211. 44 .0420 .0208 .0211 45 .0450 .0208 .0241 46 .0450 .0208 .0241 47 .0480 .0208 .0271 48 .0480 .0208 .0271 49 .0510 .0208 .0301 50 .0540 .0208 .0331 51 .0569 .0208 .0361 52 .0599 .0208 .0391 53 .0629 .0208 .0421 54 .0629 .0208 .0421 55 .0659 .0208 .0451 56 .0689 .0208 .0481 57 .0719 .0208 .0511 58 .0719 .0208 .0511 59 .0749 .0208 .0541 60 .0779 .0208 .0571 61 .0929 .0208" .0721 62 .1079 .0208 .0871 63 .1169 .0208 .0961 64 .1259 .0208 .1051 65 .1409 .0208 .1200 66 .1678 .0208 .1470 67 .0569 .0208 .0361 68 .0270 .0208 .0061 69 .0180 .0162' .0018 70 .0150 .0135 .0015 71 .0090 .0081 .0009 72 .0060 .0054 .0006 TOTAL STORM RAINFALL(INCHES) = 3.00 TOTAL SOIL- LOSS(INCHES) = 1.42 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.58 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 37.9250 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 41.9813 , MH.MMM11'.itYIMMHf...,HH.HYMYMf lff f Y,ffHHYfiYMlM1Hl.Hf tR. RCFC &WCD 6 -HOUR STORM RUNOFF HYDROGRAPH HYDROGRAPH IN FIVE - MINUTE INTERVALS(CFS) INTERVAL# VOLUME(AF) Q(CFS) 0. 100.0 200.0 300.0 400.0 1 .0013 .19 Q 2 .0072 .86 Q. 3 .0216 2.09 Q 4 .0431 3.12 Q 5 .0689 3.75 Q 6 .0979 4.21 Q 7 .1300 4.66 Q 8 .1654 5.15 Q 9 .2035 5.53 Q 10 .2436 5.82 Q 11 .2853 6.06 Q 12 .3293 6.38 Q 13 .3775 7.00 Q 14 .4320 7.92 Q 15 .4913 8.61 Q 16 .5536 9.05 Q 17 .6183 9.39 Q 18 .6848 9.66 Q 19 .7530 9.90 Q 20 .8227 10.11 VQ 21 .8936 10.30 VQ 22 .9656 10.46 VQ 23 1.0387 10.61 VQ 24 1.1153 11.12 .Q 25 1.1989 12.14 .Q 26 1.2924 13.57 •.Q 27 1.3911 14.32 .Q 28 1.5011 15.98 .Q 29 1.6209 17.39 .Q 30 1.7467 18.27 .Q 31 1.8770 18.92 .Q 32 2.0110 19.45 .Q 33 2.1506 20.28. Q 34 2:3017 21.94. Q 35 2.4705 24.51 . Q 36 2.6525 26.42 .0 37 2.8428 27.64. Q 38 3.0420 28.92. Q 39 3.2548 30.90. Q 40 3.4870 33.71. Q 41 3.7365 36.23. Q 42 4.0070 39.28. Q 43 4.3115 44.21. Q 44 4.6571, 50.18. VQ 45 5.0432 56.07 VQ 46 5.4647 61.20. VQ 47 5.9227 66.50. VQ 48 ` 6.4150 71.49. VQ . 49 6.9440' 76.80. VQ . 50 7.5102 82.22. VQ. 51 8.1222 88.86. VQ. 52 8.7873 96.57. VQ. 53 9.5096 104.88. VQ 54 10.2893 113.22. V.Q 55 11.1226 120.98. V Q 56 12.0046 128.07. VQ 57 12.9413 136.00. VQ 58 13.9360 144.43. VQ 59 14.9857 152.43. VQ 60 16.0862 159.79. Q 61 17.2533 169.47. Q 62 18.5276 185.02. VQ. 63 19.9684 209.20. VQ 64 21.6040 237.50. V Q 65 23.4365 266.08. V Q 66 25.4910 298.31.. V Q. 67 27.7171 323.24. V . Q 68 29.8694 312.51. V .Q 69 31.5633 245.95. Q V 70 32.8218 182.73. 0. V 71 33.8145 144.14. Q . V 72 34.6436 120.38. Q V 73 35.3583 103.78. Q V 74 35.9837 90.81. Q. V 75 36.5335 79.83. Q V 76 37.0204 70.69. Q V 77 37.4565 63.32. Q V 78 37.8492 57.03. Q V 79 38.2066 51.90. Q V 80 38.5352 47.71. Q V 81 38.8389 44.09. Q- V . 82 39.1202 40.85. Q V . 83 39.3834 38.22. Q V . 84 39.6292 35.69. Q V . 85 39.8567 33.03. Q V . 86 40.0687 30.78. Q V. 87 40.2674 28.85. Q V. 88 40.4532 26.97 . Q V. 89 40.6255 25.02 . Q V. 90 40.7857 23.27. Q V. 91 40.9344 21.58. Q V. 92 41.0722 20.02. Q V. 93 41.1994 18.46 .Q V. 94 41.3178 17.19 .Q V. 95 41.4283 16.05 .'Q V. 96 41.5317 15.01...Q V. 97 41.6278 13.94 .Q V. 98 41.7157 12.78 .Q V. 99 41.7937 11.32 .Q V. 100 41.8598 9.60 Q V. 101 41.9129 7.70 Q V. 102 41.9515 5.61 Q V. 103 41.9735 3.19 Q V. 104 41.9788 .77 Q V. .105 41.9801 .19 Q V. 106 41.9807 .09 Q V. 107 41.9810 .05 Q V. 108 41.9812 .03 Q V. 109 41.9813 .01 Q V. F� ' UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC &WCD) 1978 HYDROLOGY MANUAL (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: MAINIERO, SMITH AND ASSOCIATES ——DESCRIPTION OF RESULTS ****'****'*'***"*'****'**********'* ..... " green ' 24 hour storm ' wwww. w�ww:: wswww,: w, ww,+ wwwwww, w: ww, wwwwwwwwwww : :,ww,,,»„wwwwe+www,ww :www WATERCOURSE LENGTH = 9400.000 FEET LENGTH FROM CONCENTRATION POINT TO CENTROID = 4700.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1595.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE _ .040 WATERSHED AREA = 320.000 ACRES UNIT HYDROGRAPH TIME UNIT = 15.000 MINUTES MOUNTAIN S -GRAPH SELECTED UNIFORM MEAN SOIL- LOSS(INCH /HOUR) = .250 LOW SOIL -LOSS RATE PERCENT(DECIMAL) = .900 MINIMUM SOIL -LOSS RATE(INCH /HOUR) = .190 BASEFLOW = .000 CFS /SQUARE -MILE USER - ENTERED RAINFALL= 5.00 INCHES PROGRAM NUMBER 9 SELECTED WATERCOURSE "LAG' TIME = .314 HOURS UNIT INTERVAL PERCENTAGE OF LAG -TIME = 79.545 HYDROGRAPH BASEFLOW = .000 CFS RCFC &WCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) = .9994 ««««««« « «««« « « « « « « «» »» » » » » » » »» » » » » » »»» Advanced Engineering Software [AES] SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 UNIT HYDROGRAPH DETERMINATION INTERVAL NUMBER "S" GRAPH UNIT HYDROGRAPH MEAN VALUES ORDINATES(CFS) 1 16.886 217.830 2 54.387 483.760 3 68.838 186.426 4 77.168 107.455 5 82.560 69.558 6 86.365 49.084 1 7 89.419 39.391 8 91.864 31.548 9 93.919 26.498 10 95.588 21.531 11 96.404 10.527 12 .96.904 6.450 13 97.404 6.450 14 97.904 6.450 15 98.404 .6.450 16 98.904 6.450 - 17 99.404 6.450 18 99.904 6.450 19 . 100.000 1.242 � I Ul n. ri 11 re. www. www wwwwrwwr» UNIT rrwwr.a wrwrwrwwrr.. UNIT rwwwwwwwwwww UNIT : :wrww..rwwrrwre+w +wwww» EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0100 .0090 .0010 2 .0150 .0135 .0015 3 .0150 .0135 .0015 4 .0200 .0180 .0020 5 .0150 .0135 .0015 6 .0150 .0135 .0015 7 .0150 .0135 .0015 8 .0200 .0180 .0020 9 .0200 .0180 .0020 10 .0200 .0180 .0020 11 .0250 .0225 .0025 12 .0250 .0225 .0025 13 .0250 .0225 .0025 14 .0250 .0225 .0025 15 .0250 .0225 .0025 16 .0300 .0270 .0030 17 .0300 .0270 .0030 18 .0350 .0315 .0035 19 .0350 .0315 .0035 20 .0400 .0360 .0040 21 .0300 .0270 .0030 22 .0350 .0315 .0035 23 .0400 .0360 .0040 24 .0400 .0360 .0040 25 .0450 .0405 .0045 26 .0450 .0405 .0045 27 .0500 .0450 .0050 28 .0500 .0450 .0050 29 .0500 .0450 .0050 30 .0550 .0495 .0055 31 .0600 .0540 .0060 32 .0650 - .0585 .0065 33 .0750 .0675 .0075 34 .0750 .0672 .0078 35 .0800 .0667 .0133 36 .0850 .0662 .0187 37 .0949 .0657 .0292 38 .0999 .0653 .0347 . 39 .1049 .0648 .0401 40 .1099 .0643 .0456 41 .0750 .0639 .0111 42 .0750 .0634 .0115 43 .0999 .0630 .0370 44 .0999 .0625 .0374 45 .0949 .0621 .0329 46 .0949 .0616 .0333 47 .0850 .0612 .0237 48 .0899 .0608 .0292 49 .1249 .0604 .0646 50 .1299 .0599 .0700 51 .1399 .0595 .0804 52 .1449 .0591 .0858 53 .1699 .0587 .1112 54 .1699 .0583 .1116 55 .1149 .0579 .0570 56 .1149 .0575 .0574 57 .1349 .0572 .0778 58 .1299 .0568 .0731 59 .1299 .0564 .0735 60 .1249 .0561 .0689 61 .1199 .0557 .0642 62 .1149 .0553 .0596 63 .0949 .0550 .0400 64 .0949 .0546 .0403 65 .0200 .0180 .0020 66 .0200 .0180 .0020 67 .0150 .0135 .0015 68 .0150 .0135 .0015 69 .0250 .0225 .0025 70 .0250 .0225 .0025 71 .0250 .0225 .0025 72 .0200 .0180 .0020 73 0200 .0180 .0020 74 .0200 .0180 .0020 75 .0150 .0135 .0015 76 .0100 .0090 .0010 77 .0150 .0135 .0015 78 .0200 .0180 .0020 79 .0150 .0135 .0015 80 .0100 .0090 .0010 81 .0150 .0135 .0015 82 .0150 .0135 .0015 83 .0150 .0135 .0015 84 .0100 .0090 .0010 85 .0150 .0135 .0015 86 0100 .0090 .0010 87 .0150 .0135 .0015 88 .0100 .0090 .0010 89. .0150 .0135 .0015 90 .0100 .0090 .0010 91 .0100 .0090 .0010 92 .0100 .0090 .0010 93 .0100 .0090 .0010 94 .0100 .0090 .0010 95 .0100 .0090 .0010 96 .0100 .0090 .0010 TOTAL STORM RAINFALL(INCHES) = 5.00 TOTAL SOIL- LOSS(INCHES) = 3.30 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.70 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 87.9603 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 45.2723 w: wwwwwww. w» wwwwwwwwwwwwwww:» wr:+ w.w++ www: ewwwwwwwwwwwwwww » :w.wwwwww++www RCFCBWCD 24 -HOUR RUNOFF HYDROGRAPH HYDROGRAPH IN FIFTEEN- MINUTE INTERVALS(CFS) INTERVAL# VOLUME(AF) Q(CFS) 0. 50.0 100.0 150.0 200.0 ^1 .0045 .22 Q '2 .0212 .81 Q 3 .0468 1.24 Q' 4 .0788 1.55 Q 5 .1161 " 1.80 Q 6 .1520 1.74 Q 7 .1884 1.76 Q 8 .2278 1.90 Q 9 .2728 2.18 Q 10 .3203 2.30 Q 11 .3716 2.48 Q 12 .4287 2.77 Q 13 .4885 2.89 Q 14 .5498 2.97 Q 15 .6124 3.03 Q 16 .6782 3.18 Q 17 .7498 3.47 Q 18 .8262 3.70 Q 19 .9091 4.01 Q 20 .9973 4.27 Q 21 1.0877 4.38 Q 22 1.1735 4.15 QV 23 1.2648 4.42 QV 24 1.3623 4.72 QV 25 1.4648 4.96 QV 26 1.5740 5.29 ".Q 27 1.6885 5.54 .Q 28 1.8099 5.87 .Q 29 1.9344 6.03 .Q 30 2.0633 6.24 .Q 31 2.2009 6.66 .Q 32 2.3490 7.17 .QV 33 2.5105 7.82 .QV 34 2.6877 8.58 .QV 35 2.8991 10.23. Q 36 3.1952 14.33. Q 37 3.6178" 20.46. VQ 38 4.2055 28.45. V Q 39 4.9351 35.31. V Q . 40 5.8033 42.02. V Q. 41 6.6303 40.03. V Q. 42 7.1749 26.36. QV 43 7.7468 27.68. QV 44 8.5307 37.94. Q . 45 9.3712 40.68: Q . 46 10.2099 40.59. QV. 47 11.0154 38.99. Q V. 48 11.7553 35.81. Q V 49 12.6764 44.58. Q .V 50 13.9790 63.04. Q 51 15.5258 74.87. VQ 52 17.3081 86.26. V Q . 53 19.3628 99.45. V Q. 54 21.7596 116.01. V. Q 55 24.0728 111.96. VQ 56 25.9446 90.60. Q. V 57 27.7755 88.62. Q . V 58 29.7242 94.32. Q. V 59 31.6712 94.23. Q . V . 60 33.6064 93.66. Q . V. 61 35.4747 90.43. Q . V 62 37.2560 86.21. Q V 63 38.8698 78.11. Q V 64 40.2503 66.82. Q V 65 41.3727 54.33. Q V 66 42.0656 33.54. Q V . 67 42.5723 24.52. Q V. 68 42.9605 18.79. Q V . 69 43.2724 15.09. Q V . 70 43.5347 12.69. Q V . 71 43.7503 10.44. Q V . 72 43.9246 8.44 .Q V . 73 44.0688 6.98 .Q V . 74 44.1925 5.99 .Q V. 75 44.3005 5.23 .Q V. 76 44.3915 4.40 Q V. 77 44.4681 3.71 Q V. 78 44.5400 3.48 Q V. 79 44.6060 3.20 Q V. 80 44.6587 2.55 Q V. 81 44.7018 2.09 Q V. 82 44.7423 1.96 Q V. 83 44.7822 1.93 Q V. 84 44.8200 1.83 Q V. 85 44.8551 1.70 Q V. 86 44.8913 1.75 Q V. 87 44.9254 1.65 Q V. 88 44.9606 1.70 Q V. 89 44.9940 1.61 Q V. 90 45.0287 1.68 Q V. 91 45.0595 1.49 Q V. 92 45.0888 1.42 Q V. 93 45.1174 1.38 Q V. 94 45.1455 1.36 Q V. 95 45.1734 1.35 Q V. 96 45.2009 1.33..Q V. 97 45.2237 1.10 Q V. 98 45.2364 .61 Q V. 99 45.2451 .42 Q V. 100 45.2515 .31 Q V. 101 45.2563 .24 Q V. 102 45.2601 .19 Q V. 103 45.2631 .14 Q V. 104 45.2654 .11 Q V. 105 45.2671 .08 Q V. 106 45.2684 .06 Q V. 107 45.2693 .05 Q V. 108 45.2701 .04 Q V. 109 45.2708 .03 Q V. 110 45.2714 .03 Q V. 111 45.2718 .02 Q V. 112 45.2721 .01 Q V. 113 45.2723 .01 Q V. 114 f} f!f! f} 45.2723 1l ifl Hiiiiififlff .00 if ff Q lf4fllff Ml tfll iiiiffffifitRffflf!lflfflif111f V. I UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC &WCD) 1978 HYDROLOGY MANUAL (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: MAINIERO, SMITH AND ASSOCIATES ««««««« « « « « « « « « « « « « » »»» » » »» » » » » »» » » » »» * '** * * *' *DESCRIPTION OF RESULTS— * *" * * *'— *' * *""'* f Green, smaller area AREA ' 3 hour storm ' !!!l1 N11, fl fff4flffff44ff1ffff!} ffl fff!!! f l�iff!!1f„f!!!ff!lfff4f41fflf „! ' WATERCOURSE LENGTH = 7000.000 FEET LENGTH FROM CONCENTRATION POINT TO CENTROID = 3500.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1565.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE = .040 WATERSHED AREA = 125.000 ACRES UNIT HYDROGRAPH TIME UNIT = 5.000 MINUTES MOUNTAIN S -GRAPH SELECTED UNIFORM MEAN SOIL- LOSS(INCH /HOUR) = .250 LOW SOIL -LOSS RATE PERCENT(DECIMAL) = .900 BASEFLOW = .000 CFS /SQUARE -MILE USER- ENTERED RAINFALL= 2.25 INCHES PROGRAM NUMBER 1 SELECTED ' WATERCOURSE "LAG' TIME = 238 HOURS UNIT INTERVAL PERCENTAGE OF LAG -TIME = 34.959 HYDROGRAPH BASEFLOW = .000 CFS RCFC &WCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) = .9995 ' « «««««««« « « « « « « « « « «»»»» » »»» » » » » » » »i> » »» Advanced Engineering Software [AES] ' SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 UNIT HYDROGRAPH DETERMINATION ' Y INTERVAL "S” GRAPH UNIT HYDROGRAPH NUMBER MEAN VALUES ORDINATES(CFS) 1 4.600 69.540 I 2 23.094 279.573 3 44.688 326.447 4 55.859 168.863 5 62.911 106.616 6 68.127 78.854 ' 7 72.379 64.271 1 1 1 1 1 1 1 1 ail 1 1 8 75.864 • 52.682 9 78.735 43.407 10 81.114 35.964 11 83.087 29.829 12 84.851 26.659 13 86.353 22.705 14 87.778 21.540 15 89.108 20.111 16 90.237 17.068 17 91.305 16.138 18 , 92.304 15.113 19 93.209 13.681 20 94.061 12.870 21 94.833 11.677 22 95.522 10.412 23 96.182 9.983 24 96.682 7.559 25 97.182 7.559 26 97.682 7.559 27 98.182 7.559 28 98.682 7.559 29 99.182 7.559 30 99.682 7.559 31 100.000 4.803 0 S 4 ,r UNIT UNIT UNIT EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0292 .0208 .0084 2 .0292 .0208 :0084 3 .0247 .0208 .0039 4 .0337 .0208 .0129 5 .0337 .0208 .0129 6 .0405 .0208 .0196 7 .0337 .0208 .0129 8 .0405 .0208 .0196 9 .0405 .0208 .0196 10 .0337 .0208 .0129 11 .0360 .0208 .0151 12 .0405 .0208 .0196 13 .0495 .0208 .0286 14 .0495 .0208 .0286 15 .0495 .0208 .0286 16 .0450 .0208 .0241 17 .0585 .0208 .0376 18 .0607 .0208 .0399 19 .0540 .0208 .0331 20 .0607 .0208 .0399 21 .0742 .0208 .0534 22 .0697 .0208 .0489 23 .0652 .0208 .0444 24 .0675 .0208 .0466 25 .0697 .0208 .0489 26 .0945 .0208 .0736 27 .1124 .0208 .0916 28 .0787 .0208 .0579 29 .1529 .0208 .1321. 30 .1642 .0208 .1433 31 .1844 .0208 .1636 32 .1327 .0208 .1119 33 .0450 .0208 .0241 34 .0405 .0208 .0196 35 .0405 .0208 .0196 36 .0135 .0121 .0013 TOTAL STORM RAINFALL(INCHES) = 2.25 TOTAL SOIL- LOSS(INCHES) _ .74 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.51 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 7.7220 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 15.6959 RCFC &WCD 3 -HOUR STORM RUNOFF HYDROGRAPH HYDROGRAPH IN FIVE - MINUTE INTERVALS(CFS) . . INTERVAL# VOLUME(AF) Q(CFS) 0. 50.0 100.0 150.0 200.0 1 .0040 .58 Q 2 .0242 2.93 Q 3 .0612 5.36 VQ 4 .1035 6.15 VQ 5 .1593 8.09 VQ 6 .2378 11.40 VQ 7 .3369 14.40 VQ 8 .4487 16.23 .V Q 9 .5716 17.84 .V Q 10 .7079 19.80 .V Q 11 .8425 19.55. VQ 12 .9759 19.36. VQ 13 1.1251 21.67. VQ 14 1.3043 26.02. V Q 15 1.5111 30.03. V Q 16 1.7312 31.96. V Q 17 1.9599 33.21. V Q 18 2.2140 36.90. V Q . 19 2.5015 41.74. VQ. 20 2.8027 43.73. VQ. 21 3.1233 46.56. V Q. 22 3.4866 52.74. V Q 23 3.8816 57.35. V.Q 24 4.2836 58.38. VQ 25 4.6932 59.46. Q 26 5.1292 63.31,-. QV 27 5.6349 73.42. Q 28 6.2243 85.58. V Q . 29 6.8610' 92.46. VQ. 30 7.6160 109.61. V.Q 31 8.5623 137.40. V Q . 32 9.6351 155.78. V Q 33 10.6826 152.09. V Q 34 11.5180 121.31 Q V. 35 12.1440 90.90. Q . V 36 12.6564 74.39. Q V 37 13.0729 60.48. Q V 38 13.4038 48.04. Q. V 39 13.6769 39.66. Q V 40 13.9097 33.79. Q V 41 14.1112 29.26' . Q V 42 14.2888 25.79. Q V 43 14.4478 23.09. Q V 44 14.5906 20.72. Q V . 45 14.7200 18.79. Q V . 46 14.8374 17.05. Q V . 47 14.9440 15.48. Q V . 48 15.0413 14.14 . Q V . 49 15.1297 12.83. Q V . 50 15.2094 11.58. Q V . 51 15.2817 10.50. Q V . 52 15.3459 9.32 .Q V. 53 15.4032 8.32 .Q V. 54 15.4546 7.47 .Q V. 55 15.5013 6.78 .Q V. 56 15.5443 6.25 .Q V. 57 15.5828 5.58 .Q V. 58 15.6168 4.93 Q V. J 59 15.6463 4.29 Q V. 60 15.6688 3.26 Q V. 61 15.6834 2.12 Q V. 62 15.6904 1.03 Q V. 63 15.6934 .42 Q V. 64 15.6951 .25 Q V. 65 15.6958 .10 Q V. 66 15.6959 .01 Q V UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC &WCD) 1978 HYDROLOGY MANUAL (C) Copyright 1982,1986 Advanced Engineering Software [AESj Especially prepared for: MAINIERO, SMITH AND ASSOCIATES """" "DESCRIPTION OF RESULTS "' " " " " " " """ """" " " " " -- - -- ' Green, smaller area ' ' 6 hour storm ' WATERCOURSE LENGTH = 7000.b00 FEET LENGTH FROM CONCENTRATION POINT TO CENTROID = 3500.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1565.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE _ .040 WATERSHED AREA = 125.000 ACRES UNIT HYDROGRAPH TIME UNIT = 5.000 MINUTES MOUNTAIN S -GRAPH SELECTED UNIFORM MEAN SOIL- LOSS(INCH /HOUR) _ .250 LOW SOIL -LOSS RATE PERCENT(DECIMAL) _ .900 BASEFLOW = .000 CFS /SQUARE -MILE USER - ENTERED RAINFALL = 3.00 INCHES PROGRAM NUMBER 5 SELECTED WATERCOURSE "LAG" TIME _ .238 HOURS ' UNIT INTERVAL PERCENTAGE OF LAG -TIME = 34.959 HYDROGRAPH BASEFLOW = .000 CFS RCFC &WCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) _ .9996 ' Advanced Engineering Software (AESj SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 UNIT HYDROGRAPH DETERMINATION INTERVAL "S" GRAPH UNIT HYDROGRAPH NUMBER MEAN VALUES ORDINATES(CFS) 1 4.600 69.540 2 23.094 279.573 3 44.688 326.447 4 55.859 168.863 5 62.911 106.616 6 68.127 78.854 ' 7 72.379 64.271 8 75.864 52.682 9 78.735 43.407 10 81.114 35.964 11 83.087 29.829 12 84.851 26.659 13 86.353 22.705 14 . 87.778 21.540 15 89.108 20.111 16 90.237 17.068 17 91.305 16.138 18 92.304 15.113 19 93.209 13.681 20 94.061 12.870 21 94.833 11.677 22 95.522 10.412 23 96.182 9.983 24 96.682 7.559 25 97.182 7.559. 26 97.682 7.559 27 98.182 7.559 28 _98.682 7.559 29 99.182 7.559 30 , 99.682 7.559 31 100.000 4.803 0 UNIT UNIT UNIT EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0150 .0135 .0015 2 .0180 .0162 .0018 3 .0180 .0162 ..0018 4 .0180 .0162 .0018 5 .0180 .0162 .0018 6 .0210 .0189 .0021 7 .0210 .0189 .0021 8 .0210 .0189 .0021 9 .0210 .0189 .0021 10 .0210 .0189 .0021 11 .0210 .0189 .0021 12 .0240 .0208 .0032 13 .0240 .0208 .0032 14 .0240 .0208 .0032 15 .0240 .0208 .0032 16 .0240 .0208 .0032 17 .0240 .0208 .0032 18 .0240 .0208 .0032 19 .0240 .0208 .0032 20 .0240 .0208 .0032 21 :0240 .0208 .0032 22 .0240 .0208 .0032 23 .0240 .0208 .0032 24 .0270 .0208 .0062 25 .0240 .0208 .0032 26 .0270 .0208 .0062 27 .0270 .0208 .0062 28 .0270 .0208 .0062 .29 .0270 .0208 .0062 30 .0270 .0208 .0062 31 .0270 `.0208 .0062 32 .0270 .0208 .0062 33 .0300 .0208 .0092 34 .0300 .0208 .0092 35 .0300 .0208 .0092 36 .0300 .0208 .0092 37 .0300 .0208 .0092 38 .0330 .0208 .0122 39 .0330 .0208 .0122 40 .0330 .0208 .0122 41 .0360 .0208 .0152 42 .0390 .0208 .0182 43 .0420 .0208 .0212 44 .0420 .0208 .0212 45 .0450 .0208 .0242 46 .0450 .0208 .0242 47 .0480 .0208 .0271 48 .0480 .0208 .0271 49 .0510 .0208 .0301 50 .0540 .0208 .0331 51 .0570 . .0208 .0361 52 .0600 .0208 .0391 53 .0630 .0208 .0421 54 .0630 .0208 .0421 55 .0660 .0208 .0451 56 .0690 .0208 .0481 57 .0720 .0208 .0511 58 .0720 .0208 .0511 59 .0750 .0208 .0541 60 .0780 .0208 .0571 61 .0930 .0208 .0721 62 .1080 .0208 .0871 63 .1170 .0208 .0961 64 .1260 .0208 .1051 65 • .1410 .0208 .1201 66 .1679 .0208 .1471 67 .0570 .0208 .0361 68 .0270 .0208 .0062 69 .0180 .0162 .0018 70 .0150 .0135 .0015 71 .0090 .0081 .0009 72 .0060 .0054 .0006 TOTAL STORM RAINFALL(INCHES) = 3.00 TOTAL SOIL- LOSS(INCHES) = 1.42 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.58 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 14.8158 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 16.4147 RCFCBWCD 6 -HOUR STORM RUNOFF HYDROGRAPH HYDROGRAPH IN FIVE - MINUTE INTERVALS(CFS) INTERVAL# VOLUME(AF) Q(CFS) 0. 50.0 100.0 150.0 200.0 1 .0007 .10 Q 2 .0045 .54 Q 3 .0122 1.12 Q 4 .0223 1.47 Q 5 .0338 1.68 Q 6 .0466 1.85 Q 7 .0607 , 2.05 Q 8 .0762 2.25 Q 9 .0926 2.38 Q 10 .1097 2.48 Q 11 .1274 2.56 Q 12 .1460 2.70 Q 13 .1670 3.06 Q 14 .1908 3.45 Q 15 .2161 3.68 Q 16 .2425 3.83 Q 17 .2698 3.95 Q 18 .2977 4.06 Q 19 .3262 4.14 Q 20 .3553 4.22 Q 21 .3848 4.28 Q 22 .4147 4.34 QV ' 23 .4449 4.39. QV 24 .4769 4.64 QV 25 .5135 5.31 .Q 26 .5527 5.70 .Q 27 .5947 6.10 .Q 28 .6424 6.93 .Q 29 .6932 7.38 .Q 30 .7462. 7.69 .Q 31 .8007 7.91 .Q 32 .8564 8.09 .QV 33 .9147 8.45 .QV 34 .9795 9.42 .QV 35 1.0518 10.50. Q 36 1.1283 11.10. Q 37 1.2075 11.50. Q 38 1.2902 12.02. QV 39 1.3805 13.11 . QV 40 1.4791 14.31 . QV 41 1.5839 15.22. Q 42 1.6992 16.74. QV 43 1.8310 19.13. QV 44 1.9809 21.77. Q 45 2.1465 24.04 .. QV 46 2.3267 26.17. Q 47 2.5216 28.30. QV 48 2.7310 30.40. Q 49 2.9552 32.54. QV . 50 3.1953 34.87. QV . 51 3.4560 37.86. QV. 52 3.7397 41.18. QV. 53 4.0476 44.71. QV. 54 4.3792 48.16. 'QV 55 4.7312 51.10. Qv. 56 5.1031 54.00. Q V 57 5.4987 57.44. QV 58 5.9183 60.94. QV 59 6.3588 63.95. Q V 60 6.8196 66.92. Q V 61 7.3104 71.27. Q V . 62 7.8561 79.23. Q V. 63 8.4817 90.84. QV 64 9.1902 102.87. QV 65 9.9803 114.72. QV . 66 10.8693 129.09. QV 67 11.8291 139.36. Qv. 68 12.6682 121.83. Q V 69 13.2641 86.53. Q V 70 13.7029 63.71. Q V 71 14.0528 50.80. Q V 72 14.3451 42.44. Q. V 73 14.5928 35.97. Q V 74 14.8045 30.75. Q V . 75 14.9877 26.59. Q V 76 15.1486 23.37. Q V 77 15.2925 20.89. Q V . 78 15.4219 18.79. Q V . 79 15.5398 17.11. Q V . 80 15.6468 15.55. Q V. 81 15.7434 14.03. Q V. 82 15.8314 12.77 .0 V. 83 15.9113 11.60 . Q V. 84 15.9834 10.46 . Q V. 85 16.0482 9.42 .Q V. 86 16.1062 8.42 .Q V. 87 16.1579 7.50 .Q V. 88 16.2041 6.70 .Q V. 89 16.2449 5.92 .Q V. • 90 16.2821 5.41 .Q V. 91 16.3160 4.92 Q V. 92 16.3458 4.32 Q V. 93 16.3708 3.64 Q V. 94 16.3907 2.88 Q V. 95 16.4048 2.04 Q V. 96 16.4121 1.06..Q V. 97 16.4138 .26 Q V. 98 16.4143 .07 Q V. 99 16.4145 .03 Q V. 100 16.4146 .02 Q V. 101 16.4147 .01 Q V. 102 16.4147 .00 Q V. � I ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, „,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ' UNIT - HYDROGRAPH ANALYSIS ACCORDING TO RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT (RCFC &WCD) 1978 HYDROLOGY MANUAL ««««««« « ««« « « « « «««« »»» »»»» »» » »» » » » » » »» 1 (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: MAINIERO, SMITH AND ASSOCIATES ««««««« «« « « « « « «« « « « » » » » »» »»»» » » » » » » » »» __DESCRIPTION OF Green, smaller area ' 24 hour storm ' WATERCOURSE LENGTH = 7000.000 FEET LENGTH FROM CONCENTRATION POINT TO CENTROID = 3500.000 FEET ELEVATION VARIATION ALONG WATERCOURSE = 1565.000 FEET MANNINGS FRICTION FACTOR ALONG WATERCOURSE _ .040 WATERSHED AREA = 125.000 ACRES UNIT HYDROGRAPH TIME UNIT = 15.000 MINUTES MOUNTAIN S -GRAPH SELECTED UNIFORM MEAN SOIL- LOSS(INCH /HOUR) = .250 LOW SOIL -LOSS RATE PERCENT(DECIMAL) = .900 MINIMUM SOIL -LOSS RATE(INCH /HOUR) = .190 BASEFLOW = .000 CFS /SQUARE -MILE USER - ENTERED RAINFALL = 5.00 INCHES PROGRAM NUMBER 9 SELECTED WATERCOURSE "LAG” TIME = .238 HOURS UNIT INTERVAL PERCENTAGE OF LAG -TIME = 104.876 HYDROGRAPH BASEFLOW = .000 CFS RCFC &WCD AREA ADJUSTMENT FACTOR(PLATE E -5.8) = .9998 ««««««« « « « « «« « « « « «« »» » »» » » » » »» » » » » » » »» Advanced Engineering Software [AES] SERIAL No.106181 VER. 1.6C RELEASE DATE: 2/21/86 ««««««« « « « «« « « «« « « « » » »» » » » » » »» » » » » » » »» UNIT HYDROGRAPH DETERMINATION INTERVAL "S" GRAPH UNIT HYDROGRAPH NUMBER MEAN VALUES ORDINATES(CFS) 1 24.127 121.579 2 62.299 192.349 3 75.659 67.323 4 83.018 37.078 5 87.746 23.828 6 91.282 17.817 7 94.034 13.869 8 96.035 10.079 9 96.535 2.520 10 97.035 2.520 11 97.535 2.520 12 98.035 2.520 13 •98.535 2.520 14 99.035 2.520 15 99:535 2.520 16 ww: 100.000 2.346 wwawww»ww Y 0 ............................................ . ..... ...... ...... .,,,.,,...... UNIT UNIT UNIT EFFECTIVE PERIOD RAINFALL SOIL -LOSS RAINFALL (NUMBER) (INCHES) (INCHES) (INCHES) 1 .0100. .0090 .001.0 .2 .0150 .0135 .0015 3 .0150 .0135 .0015 4 .0200 .0180 .0020 5 .0150 .0135 .0015 6 .0150 .0135 .0015 7 .0150 .0135 .0015 8 .0200 .0180 .0020 9 .0200 .0180 .0020 10 .0200 .0180 .0020. 11 .0250 .0225 .0025 12 .0250 .0225 .0025 13 .0250 .0225 .0025 14 .0250 .0225 .0025 15 .0250 .0225 .0025 16 .0300 .0270 .0030 17 .0300 .0270 .0030 18 .0350 .0315 .0035 19 .0350 .0315 .0035 20 .0400 .0360 .0040 21 .0300 .0270 .0030 22 .0350 .0315 .0035 23 .0400 .0360 .0040 24 .0400 .0360 .0040 25 .0450 .0405 .0045 26 .0450 .0405 .0045 27 .0500 .0450 .0050. 28 .0500 .0450 .0050 29 .0500 .0450 .0050 30 .0550 .0495 .0055 31 .0600 .0540 .0060 32 .0650 _ .0585 .0065 33 .0750 .0675 .0075 34 .0750 .0672 .0078 35 .0800 .0667 .0133 36 .0850 .0662 .0188 37 .0950 .0657 .0292 38 .1000 .0653 .0347 39 .1050 .0648 .0402 40 .1100 .0643 .0456 41 .0750 .0639 .0111 42 .0750 .0634 .0116 43 .1000 .0630 .0370 44 .1000 .0625 .0375 45 .0950 .0621 .0329 46 .0950 .0616 .0333 47 .0850 .0612 .0238 48 .0900 .0608 .0292 49 .1250 .0604 .0646 50 .1300 .0599 .0700 51 .1400 .0595 .0804 52 .1450 .0591 .0858 53 .1700 .0587 .1112 54 .1700 .0583 .1116 55 .1150 .0579 .0570 56 .1150 .0575 .0574 57 .1350 .0572 .0778 58 .1300 .0568 .0732 59 .1300 .0564 .0736 60 .1250 .0561 .0689 61 .1200 .0557 .0643 62 .1150 .0553 .0596 63 .0950 .0550 .0400 64 .0950 .0546 .0403 65 .0200 .0180 .0020 66 .0200 .0180 .0020 67 .0150 .0135 .0015 68 .0150 .0135 .0015 69 .0250 .0225 .0025 70 .0250 .0225 .0025 71 .0250 .0225 .0025 72 .0200 .0180 .0020 73 .0200 .0180 .0020 74 .0200 .0180 .0020 75 .0150 .0135 .0015. 76 .0100 .0090 .0010 77 .0150 .0135 .0015 78 .0200 .0180 .0020 79 .0150 .0135 .0015 80 .0100 .0090 .0010 81 .0150 .0135 .0015 82 .0150 .0135. .0015 83 .0150 .0135 .0015 84 .0100 .0090 .0010 85 .0150 .0135 .0015 86 .0100 .0090 .0010 87 .0150 .0135 .0015 88 .0100 .0090 .0010 89 0150 .0135 .0015 90 .0100 .0090 .0010 91 0100 .0090 .0010 92 .0100 .0090 .0010 93 .0100 .0090 .0010 94 .0100 .0090 .0010 95 .0100 .0090 .0010 96 .0100 .0090 .0010 TOTAL STORM RAINFALL(INCHES) = 5.00 TOTAL SOIL- LOSS(INCHES) = 3.30 TOTAL EFFECTIVE RAINFALL(INCHES) = 1.70 TOTAL SOIL -LOSS VOLUME(ACRE -FEET) = 34.3647 TOTAL STORM RUNOFF VOLUME(ACRE -FEET) = 17.6977 RCFCBWCD 24 -HOUR RUNOFF HYDROGRAPH HYDROGRAPH IN FIFTEEN- MINUTE INTERVALS(CFS) INTERVAL# VOLUME(AF) Q(CFS) 0. 12.5 25.0 37.5 50.0 1 .0025 .12 Q 2 .0103 .37 Q 3 .0214 .54 Q 4 .0352 .67 Q 5 .0506 .75 Q 6 .0654 .71 Q 7 .0803 .72 Q 8 .0967 .79 Q 9 .1152 .89 Q 10 .1344 .93 Q 11 .1553 1.01 Q 12 .1784 1.12 Q 13 .2025 1.17 Q 14 .2271 1.19 Q 15 .2523 1.22 Q 16 .2789 1.29 VQ 17 .3077 1.40 VQ 18 .3386 1.50 VQ 19 .3720 1.61 VQ 20 .4075 1.72 VQ 21 .4432 1.73 .Q 22 .4772 1.65 .Q 23 .5139 1.77 .Q 24 .5529 1.89 .Q 25 .5940 1.99 .Q 26 .6377 2.11 Q 27 .6836 2.22 .Q 28 .7320 2.35 .Q 29 .7817 2.40 .Q 30 .8334 2.50 .VQ 31 .8887 2.68. Q 32 .9484 2.89. Q 33 1.0138 3.17. Q 34 1.0855 3.47. Q 35 1.1744 4.30 . VQ 36 1.3006 ' 6.11 . VQ 37 1.4839 8.87. V Q . 38 1.7352 12.16. V Q. 39 2.0441 14.95. V Q 40 2.4092 17.67. V .. Q 41 2.7300 15.53. V . Q 42 2.9360 9.97. VQ . 43 3.1731 11.48' . V Q. 44 3.4958 15.62. V . Q 45 3.8335 16.35 ., V. Q 46 4.1661 16.10. V. Q 47 4.4761 15.00. V Q 48 4.7634 13.90. VQ 49 5.1537 18.89. V Q 50 5.7027 26.57. V Q 51 6.3483 31.25. V Q 52 7.0827 35.55. V Q . 53 7.9381 41.40. V Q 54 8.9260 47.82. V Q . 55 9.8353 44.01. V Q 56 10.5634 35.24. V Q . 57 11.2899 35.16. V Q . 58 12.0607 37.31. V Q. 59 12.8267 37.07. VQ. 60 13.5797 36.45. QV 61 14.2983 34.78 . Q . V 62 14.9787 32.93 . Q V 63 15.5874 29.46 . Q V 64 16.1111 25.34 . Q V . 65 16.5047 19.05 . Q V . 66 16.7263 10.72 . Q. V 67 16.8795 7.42 . Q V. 68 16.9910 5.40 . Q V. 69, 17.0766 4.14 . Q V. 70 17.1451 3.32. Q V. 71 17.2030 2.80. Q V. 72 17.2513 2.34 .Q V. 73 17.2940 2.07 .Q V. 74 17.3325 1.87 .Q V. 75 17.3660 1.62 .Q V. 76 17.3927 1.29 .Q V. 77 17.4145 1.06 Q V. 78 17.4355 1.02 Q V. 79 17.4553 .96 Q V. 80 17.4706 .74 Q V. 81 17.4847 .69 Q V. 82 17.5000 .74 Q V. 83 17.5155 .75 Q V. 84 17.5300 .70 Q V. 85 17.5437 .66 Q V. '86 17.5573 .66 Q V. 87 17.5705 .64 Q V. 88 17.5840 .65 Q V. 89 17.5970' .63 Q V. 90 17.6103 .64 Q V. 91 17.6220 .57 Q V. 92 17.6332 .55 Q V. 93 17.6442 .53 Q V. 94 17.6550 .52 Q V. 95 17.6657 .52 Q V. 96 17.6764 .52.Q V. 97 17.6844 .39 Q V. 98 17.6884 .19 Q V. 99 17.6910 .13 Q V. 100 17.6929 .09 Q V. 101 17.6942 .06 Q V. 102 17.6951 .05 Q V. 103 17.6958 .03 Q V. 104 17.6962 .02 Q V. 105 17.6966 .02 Q V. 106 17.6969 .01 Q V. 107 17.6972 .01 Q V. 108 17.6974 .01 Q V. 109 17.6975 .01 Q V. . 110 ' 17.6976 .00 Q V. 111 17.6977 .00 Q V. G v \� t ,,, �, , y , 1, ,,. n e •ai : -,.3�; \,. , ,•,. 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',lf ' �' \ 1, r Ir !; %111:, ,llj 1rt y,:, {i:,,y..j... ;,y� /,, � ft1 t`�- '• :.. ^. \' \ f. (n 0 ETITI NATURAL ROCK SECTION C-C R/W PROPOSED ACCESS ROAD EXISTING GROUND 0. 20' 60' W. SCALE 1"=20' HORIZONTAL SCALE 1"=5' VERTICAL I NATURAL neume i mm 4 20' 60' 80' SCALE 1"=20' HORIZONTAL SCALE 1"=5' VERTICAL SECTION D-D =ESS ROAD EXISTING GROUND NATURAL Rc"uM' VAFW8 VTO 2 NATURAL neume i mm 4 20' 60' 80' SCALE 1"=20' HORIZONTAL SCALE 1"=5' VERTICAL SECTION D-D =ESS ROAD EXISTING GROUND NATURAL Rc"uM'