Flood hydrograph, 25-yr return period, downstream of the project, in m3/sec, at intervals of 7.5 min. 1 0.23 0.45 1.15 1.85 3.36 4.87 7.06 9.28 1 2 11.82 14.47 17.21 20.15 23.00 26.08 28.90 31.96 2 3 34.88 38.07 41.36 44.86 48.31 51.74 55.03 58.24 3 4 61.30 64.32 67.23 70.15 73.05 76.02 79.04 82.19 4 5 85.50 88.95 92.53 96.18 99.86 103.49 107.05 110.48 5 6 113.85 117.07 120.19 123.17 126.10 128.90 131.68 134.37 6 7 137.03 139.65 142.20 144.74 147.25 149.77 152.30 154.85 7 8 157.56 160.30 163.22 166.19 169.41 172.68 176.20 179.82 8 9 183.80 187.93 192.48 197.22 202.79 208.58 215.34 222.34 9 10 230.85 239.64 250.01 260.74 277.68 295.11 323.21 352.05 10 11 393.39 436.04 483.24 532.86 572.62 616.16 647.07 682.80 11 12 709.87 741.52 766.20 792.78 815.26 835.02 852.99 864.71 12 13 873.52 876.27 877.18 875.03 873.78 872.61 874.65 878.28 13 14 884.97 892.91 902.66 911.94 920.40 925.84 927.70 924.31 14 15 915.52 900.71 880.63 855.55 826.92 795.43 762.54 729.08 15 16 696.06 664.14 634.17 606.17 580.66 557.39 536.62 518.06 16 17 501.79 487.57 475.37 465.03 456.44 449.49 444.02 439.94 17 18 437.09 435.35 434.62 434.72 435.58 437.01 438.99 441.36 18 19 444.05 447.02 450.21 453.60 457.19 460.97 464.98 469.15 19 20 473.60 478.17 482.98 487.86 492.79 497.74 502.64 507.48 20 21 512.17 516.72 521.02 525.07 528.79 532.10 534.98 537.28 21 22 539.01 540.04 540.41 539.99 538.82 536.85 534.08 530.56 22 23 526.23 521.21 515.48 509.14 502.22 494.78 486.89 478.56 23 24 469.89 460.88 451.67 442.25 432.70 423.09 413.44 403.85 24 25 394.06 384.42 374.44 364.67 354.32 344.20 333.69 323.35 25 26 313.02 302.77 292.74 282.68 272.93 263.08 253.65 244.16 26 27 235.06 226.03 217.43 209.03 201.06 193.37 186.07 179.01 27 28 172.22 165.56 159.07 152.65 146.33 140.07 133.92 127.88 28 29 122.03 116.38 111.00 105.91 101.14 96.70 92.61 88.84 29 30 85.38 82.22 79.33 76.70 74.29 72.09 70.07 68.21 30 31 66.48 64.87 63.36 61.94 60.60 59.32 58.10 56.92 31 32 55.78 54.68 53.59 52.52 51.46 50.40 49.36 48.33 32 33 47.29 46.26 45.23 44.18 43.12 42.04 40.93 39.78 33 34 38.61 37.40 36.16 34.87 33.56 32.21 30.83 29.44 34 35 28.05 26.68 25.32 23.99 22.69 21.41 20.15 18.91 35 36 17.67 16.44 15.22 14.02 12.84 11.68 10.56 9.57 36 37 8.67 7.85 7.08 6.37 5.69 5.06 4.46 3.90 37 38 3.38 2.89 2.43 2.01 1.62 1.26 0.94 0.66 38 39 0.43 0.26 0.15 0.08 0.04 0.02 0.01 0.01 39 40 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.00 40 41 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 41 42 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 42 43 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 43 44 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 44 45 0.00 0.00 0.00 0.01 0.00 0.00 0.01 0.01 45 46 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 46 47 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 47 48 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 48