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TABLE I-6 St. Lawrence Seaway U.S. Locks Downtime by Cause: 1995-2005
Hours of downtime, unless otherwise noted
Excel | CSV
| 1995 |
88.5 |
32.6 |
16.7 |
137.8 |
64 |
99.0 |
| 1996 |
143.4 |
38.3 |
5.9 |
187.6 |
76 |
97.0 |
| 1997 |
65.2 |
31.2 |
35.6 |
132.0 |
49 |
98.0 |
| 1998 |
43.2 |
43.3 |
12.1 |
98.6 |
44 |
98.5 |
| 1999 |
2.0 |
46.3 |
1.3 |
49.6 |
4 |
99.2 |
| 2000 |
53.7 |
27.8 |
2.6 |
84.1 |
64 |
98.7 |
| 2001 |
56.8 |
45.1 |
8.9 |
110.8 |
51 |
98.3 |
| 2002 |
41.1 |
16.9 |
5.1 |
63.1 |
65 |
99.1 |
| 2003 |
57.6 |
15.9 |
0.0 |
73.5 |
78 |
98.9 |
| 2004 |
43.8 |
15.0 |
7.2 |
66.0 |
66 |
99.0 |
| 2005 |
16.9 |
12.1 |
6.0 |
35.0 |
48 |
99.5 |
NOTES: Weather-related causes includes poor visibility and high wind/ice; All other causes includes lock equipment malfunction, civil interference, pilotage, and water level/flow. These data pertain only to the two U.S. locks (Snell and Eisenhower) on the St. Lawrence Seaway between the Port of Montreal and Lake Ontario. Canada operates another five locks along this portion of the Seaway, as well as other Seaway locks at the Welland Canal.
SOURCES: 1995–2001–U.S. Department of Transportation, Saint Lawrence Seaway Development Corp. (SLSDC), Annual Reports (Washington, DC: Various years). Reports for 1997-2001 available at http://www.greatlakes-seaway.com/, as of March 2004. 2002, 2003, 2004, and 2005-SLDC, personal communication, March and December 2004, February 2005 and May 2006.
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