Flood hydrograph, 25-yr return period, upstream of the project, in m3/sec, at intervals of 7.5 min. 1 0.17 0.35 0.89 1.43 2.60 3.77 5.47 7.27 1 2 9.54 12.29 15.40 18.59 21.48 24.41 26.97 29.60 2 3 31.97 34.36 36.64 39.06 41.48 44.00 46.57 49.30 3 4 52.13 55.17 58.46 62.11 65.61 69.08 72.38 75.51 4 5 78.48 81.27 83.87 86.28 88.57 90.76 92.83 94.76 5 6 96.64 98.46 100.27 102.03 103.84 105.65 107.50 109.35 6 7 111.25 113.18 115.12 117.10 119.12 121.20 123.32 125.49 7 8 127.81 130.21 132.83 135.60 138.69 141.96 145.53 149.28 8 9 153.38 157.63 162.23 166.99 172.37 177.91 184.24 190.86 9 10 198.77 207.04 216.76 227.09 242.50 258.57 283.22 308.89 10 11 344.95 383.78 429.92 483.42 534.39 590.31 633.67 673.06 11 12 695.12 710.70 715.07 719.51 722.07 726.03 734.13 744.09 12 13 758.81 774.96 793.42 810.88 828.76 843.92 855.13 858.64 13 14 855.31 844.03 825.50 799.62 769.39 736.11 701.39 665.87 14 15 631.53 599.15 569.37 541.87 517.05 494.53 474.66 457.13 15 16 441.69 428.08 416.67 407.23 399.67 393.56 389.13 386.14 16 17 384.46 383.82 384.24 385.56 387.50 389.90 392.75 396.02 17 18 399.53 403.20 407.12 411.25 415.54 419.94 424.56 429.40 18 19 434.39 439.49 444.71 450.05 455.42 460.77 466.17 471.51 19 20 476.83 481.98 487.04 491.89 496.45 500.61 504.27 507.36 20 21 509.71 511.31 512.10 512.09 511.23 509.48 506.94 503.58 21 22 499.50 494.66 489.18 483.05 476.35 469.10 461.38 453.23 22 23 444.65 435.71 426.46 416.97 407.30 397.53 387.79 378.11 23 24 368.61 359.24 350.10 341.18 332.53 324.14 316.01 308.15 24 25 300.34 292.77 285.05 277.55 269.61 261.80 253.57 245.26 25 26 236.77 228.22 219.91 211.75 204.14 196.78 189.95 183.18 26 27 176.79 170.46 164.29 158.00 151.77 145.48 139.26 133.02 27 28 126.95 121.06 115.49 110.23 105.35 100.81 96.66 92.89 28 29 89.44 86.28 83.43 80.86 78.51 76.32 74.33 72.52 29 30 70.82 69.21 67.71 66.31 64.98 63.71 62.49 61.33 30 31 60.20 59.09 58.01 56.95 55.90 54.84 53.79 52.75 31 32 51.71 50.68 49.65 48.62 47.58 46.51 45.40 44.27 32 33 43.10 41.89 40.64 39.35 38.03 36.66 35.25 33.81 33 34 32.34 30.91 29.51 28.15 26.84 25.58 24.33 23.09 34 35 21.84 20.58 19.34 18.11 16.90 15.71 14.55 13.43 35 36 12.34 11.29 10.29 9.33 8.43 7.58 6.77 6.02 36 37 5.32 4.67 4.07 3.51 2.99 2.52 2.09 1.70 37 38 1.34 1.01 0.72 0.46 0.23 0.07 0.00 0.00 38 39 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 39 40 0.00 0.00 0.00 0.00 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 0.01 0.01 0.01 0.01 0.01 0.01 42 43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 43 44 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 44 45 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 45 46 0.00 0.01 0.01 0.01 0.01 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48