Fundamentals of Engineering Design
PRE BARRAGE
POST BARRAGE
487
485
Q = 100000 cfs
Q = 50000 cfs
480
Q = 25000 cfs
Q = 10000 cfs
475
Q = 5000 cfs
470
TIME (years)
Figure 5.10 Specific Gage Record Below Trimmu Barrage, India (after Galay,
1983)
80
AVERAGE YEARLY RAINFALL (1928-1979)
70
60
50
40
7 YEAR MOVING AVERAGE
30
13
12
5000 cfs
11
4000 cfs
10
3000 cfs
9
8
2000 cfs
7
6
1000 cfs
5
500 cfs
4
3
LITTLE TALLAHATCHIE MILE 40.6
2
PROJECTED PAST DATA
BELMONT BRIDGE STA 132
1
1930
1940
1950
1960
1970
1980
0
YEAR
POTAMOLOGY STUDIES
Figure 5.11 Specific Gage Record, Little Tallahatchie River Below
Sardis Dam, Mississippi (after Biedenharn, 1983)
130
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