The following data is taken from reports published by the office of the Comptroller and Auditor General of India (CAG India) in 2002.

Railway Period of Construction Category Total Percentage with
reference to Total
Important Major Minor
Central Prior to 1900 97 302 4773 5172 33.73
1901-1920 25 178 2328 2531 16.50
1921-1940 9 48 525 582 3.80
1941-1960 5 30 604 639 4.17
1961-1980 84 237 2519 2840 18.52
1981-2002 (up to March 2002) 16 155 1550 1721 11.22
Year of Construction of bridge not available in executive office 2 76 1772 1850 12.06
Total   238 1026 14071 15335  
Eastern Prior to 1900 10 434 3173 3617 42.75
1901-1920 3 125 1798 1926 22.77
1921-1940 5 56 686 747 8.83
1941-1960 0 0 0 0 0.00
1961-1980 2 230 1938 2170 25.65
1981-2002 (up to March 2002) 0 0 0 0 0.00
Total   20 845 7595 8460  
Northern Prior to 1900 25 514 6873 7412 37.53
1901-1920 13 185 4150 4348 22.02
1921-1940 3 112 1591 1706 8.64
1941-1960 10 176 3300 3486 17.65
1961-1980 14 286 2215 2515 12.74
1981-2002 (up to March 2002) 1 36 243 280 1.42
Total   66 1309 18372 19747  
North Eastern Prior to 1900 19 193 1433 1645 28.97
1901-1920       0 0.00
1921-1940       0 0.00
1941-1960       0 0.00
1961-1980       0 0.00
1981-2002 (up to March 2002)       0 0.00
Year of Construction of bridge not available in executive office 16 476 3541 4033 71.03
Total   35 669 4974 5678  
Northeast Frontier Prior to 1900 2 99 1136 1237 20.61
1901-1920 2 145 866 1013 16.88
1921-1940 1 75 637 713 11.88
1941-1960 6 115 506 627 10.45
1961-1980 12 278 868 1158 19.30
1981-2002 (up to March 2002) 2 319 932 1253 20.88
Total   25 1031 4945 6001  
Southern Prior to 1900 10 315 4611 4936 24.37
1901-1920 5 108 1623 1736 8.57
1921-1940 3 150 3064 3217 15.89
1941-1960 1 80 1674 1755 8.67
1961-1980 5 206 3234 3445 17.01
1981-2002 (up to March 2002) 11 378 4773 5162 25.49
Total   35 1237 18979 20251  
South Central Prior to 1900 29 324 4078 4431 28.25
1901-1920 8 44 967 1019 6.50
1921-1940 7 41 694 742 4.73
1941-1960 36 225 2492 2753 17.55
1961-1980 29 311 3632 3972 25.32
1981-2002 (up to March 2002) 25 257 2488 2770 17.66
Total   134 1202 14351 15687  
South Eastern Prior to 1900 14 285 2579 2878 14.18
1901-1920 12 342 4555 4909 24.18
1921-1940 2 116 2173 2291 11.28
1941-1960 2 86 1505 1593 7.85
1961-1980 21 504 5831 6356 31.31
1981-2002 (up to March 2002) 1 294 1981 2276 11.21
Total   52 1627 18624 20303  
Western Prior to 1900 48 451 5023 5522 35.19
1901-1920 17 157 1663 1837 11.71
1921-1940 1 114 1277 1392 8.87
1941-1960 7 159 1645 1811 11.54
1961-1980 26 241 1923 2190 13.96
1981-2002 (up to March 2002) 27 167 2746 2940 18.74
Total   126 1289 14277 15692  
Sub Total Prior to 1900 254 2917 33679 36850 28.98
1901-1920 85 1284 17950 19319 15.19
1921-1940 31 712 10647 11390 8.96
1941-1960 67 871 11726 12664 9.96
1961-1980 193 2293 22160 24646 19.38
1981-2002 (up to March 2002) 83 1606 14713 16402 12.90
Year of Construction of bridge not available in executive office 18 552 5313 5883 4.63
Grand Total   731 10235 116188 127154  


Data is taken from reports published by the Comptroller and Auditor General of India, 2002.
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