Example 5. The inflow hydrograph readings for a stream reach are given below for which the Muskingum coefficients of K = 36 hr and x = 0.15. Route the flood through the reach and determine the outflow hydrograph. Also determine the reduction in peak and the time of peak of outflow. Outflow at the beginning of the flood may be taken as the same as inflow. Time (hr) 12 24 36 48 60 72 84 96 108 120 Inflow (cumec) 42 45 88 272 342 288 240 198 162 133 110 Time (hr) 132 144 156 168 180 192 204 216 228 240 Inflow (cumec) 90 79 68 61 56 54 51 48 45 42

Example 5. The inflow hydrograph readings for a stream reach are given below for which the Muskingum coefficients of K = 36 hr and x = 0.15. Route the flood through the reach and determine the outflow hydrograph. Also determine the reduction in peak and the time of peak of outflow. Outflow at the beginning of the flood may be taken as the same as inflow. Time (hr) 12 24 36 48 60 72 84 96 108 120 Inflow (cumec) 42 45 88 272 342 288 240 198 162 133 110 Time (hr) 132 144 156 168 180 192 204 216 228 240 Inflow (cumec) 90 79 68 61 56 54 51 48 45 42

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.

Question

Example 5. The inflow hydrograph readings for a stream reach are given below for which the
Muskingum coefficients of K = 36 hr and x = 0.15. Route the flood through the reach and
determine the outflow hydrograph. Also determine the reduction in peak and the time of peak of
outflow. Outflow at the beginning of the flood may be taken as the same as inflow.
Time (hr)
12
24
36
48
60
72
84
96
108
120
Inflow (cuтеc)
42
45
88
272
342
288
240
198
162
133
110
Time (hr)
132
144
156
168
180
192
204
216
228
240
Inflow (сumес)
90
79
68
61
56
54
51
48
45
42

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