Figure 1-1 Number of Lockages and Vessels, 1993-2006
Figure 1-1 Number of Lockages and Vessels, 1993-2006
Excel | CSV | Graphic Version
| Total Lockages | Total Vessels | |
|---|---|---|
| 1993 | 661,542 | 1,024,851 |
| 1994 | 721,615 | 1,182,099 |
| 1995 | 715,313 | 1,178,200 |
| 1996 | 693,177 | 1,130,147 |
| 1997 | 698,964 | 1,163,350 |
| 1998 | 697,716 | 1,189,952 |
| 1999 | 718,488 | 1,210,569 |
| 2000 | 793,838 | 1,140,600 |
| 2001 | 740,891 | 1,053,165 |
| 2002 | 779,455 | 1,104,595 |
| 2003 | 744,517 | 1,054,014 |
| 2004 | 722,128 | 1,006,217 |
| 2005 | 724,849 | 1,008,689 |
| 2006 | 715,273 | 962,144 |
NOTE: A lockage is the transfer of a vessel(s), or that part of the tow that can be contained in the lock chamber, through a chamber in a single direction.
SOURCE: U.S. Army Corps of Engineers, Waterborne Commerce Statistics Center, Navigation Data Center, available at http://www.iwr.usace.army.mil/ndc as of April 2007.
- The number of lockages has remained basically flat over the past several years.
- The number of vessels traversing the locks has declined since the peak in the late 1990s.
- Barges (loaded and empty) remain the major vessel type traveling on the U.S. inland waterways.