NOTES: These data pertain only to
the two
U.S.
locks (Snell and Eisenhower) on the Saint 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.
SOURCES:1994–2001—U.S. Department
of Transportation, Saint Lawrence Seaway Development Corp. (SLSDC), Annual Reports (Washington,
DC: Various years). Reports
for years 1997–2001 available at http://www.greatlakes-seaway.com/, as of March
2005. 2002–2004—SLSDC,
personal communications, March and December 2004 and February 2005.
