Figure 4-6 Total Number of Hours of Lock Closures: 2000-2015
Friday, February 17, 2017
Hours
| Scheduled | Unscheduled | |
|---|---|---|
| 2000 | 52,746 | 23,363 |
| 2001 | 72,511 | 37,430 |
| 2002 | 64,964 | 41,955 |
| 2003 | 58,198 | 42,860 |
| 2004 | 67,481 | 41,288 |
| 2005 | 70,990 | 52,368 |
| 2006 | 82,088 | 75,340 |
| 2007 | 101,302 | 61,691 |
| 2008 | 81,139 | 94,869 |
| 2009 | 81,882 | 73,865 |
| 2010 | 98,415 | 77,848 |
| 2011 | 104,006 | 60,368 |
| 2012 | 128,529 | 23,268 |
| 2013 | 95,973 | (R) 60,011 |
| 2014 | (R) 101,035 | (R) 65,998 |
| 2015 | 81,883 | 49,910 |
SOURCE: U.S. Army Corps of Engineers, Navigation Data Center, Lock Performance Monitoring System. Locks by Waterway, Locks Unavailability, Calendar Years 1993-2015
(May 22, 2015). Available at http://www.navigationdatacenter.us/ as of May 2016.