Table 3 - U.S. Liquid Pipeline Accidents by Cause: 1995-2000
Monday, September 10, 2012
Table 3 - U.S. Liquid Pipeline Accidents by Cause: 1995-2000
| Cause | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | Average | |
|---|---|---|---|---|---|---|---|---|
| 1995-2000 | Percent | |||||||
| Corrosion, external | 23 | 39 | 33 | 19 | 24 | 21 | 27 | 16 |
| Corrosion, internal | 13 | 21 | 16 | 20 | 11 | 11 | 15 | 9 |
| Corrosion, not specified | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0.4 |
| Failed pipe | 14 | 10 | 11 | 7 | 3 | 7 | 9 | 5 |
| Failed weld | 9 | 9 | 3 | 6 | 14 | 10 | 9 | 5 |
| Incorrect operation by operator personnel | 26 | 11 | 11 | 7 | 16 | 9 | 13 | 8 |
| Malfunction of control or relief equipment | 5 | 6 | 7 | 9 | 7 | 5 | 7 | 4 |
| Other | 45 | 49 | 49 | 42 | 63 | 46 | 49 | 29 |
| Damage by outside force | 53 | 48 | 40 | 42 | 29 | 36 | 41 | 24 |
| Total | 188 | 193 | 171 | 153 | 168 | 146 | 170 | 100 |
SOURCE: U.S. Department of Transportation, Research and Special Programs Administration, Office of Pipeline Safety, from Form RSPA F-7100.2, available at http://ops.dot.gov/stats.htm, as of Oct. 1, 2001.