Table 4-3 Lock Characteristics and Delays on Rivers with 5,000 or More Lockages: 2000, 2010, and 2015
Total Lockages (2015) | Average Age of Locks (2015) | Percent Commercial Vessels (2015) | Average Delay in Minutes | Percent of Vessels Delayed | |||||
---|---|---|---|---|---|---|---|---|---|
2000 | 2010 | 2015 | 2000 | 2010 | 2015 | ||||
All Waterways | 595,089 | 60 | 59 | 64 | 80 | 143 | 35 | 36 | 48 |
Ohio River | 104,487 | 53 | 88 | 52 | 97 | 140 | 31 | 34 | 45 |
Mississippi River | 99,339 | 74 | 46 | 90 | 81 | 109 | 20 | 19 | 42 |
Gulf Intracoastal Waterway | 38,811 | 53 | 98 | 58 | 65 | 164 | 78 | 84 | 91 |
Illinois Waterway | 24,941 | 81 | 88 | 127 | 53 | 143 | 41 | 29 | 65 |
Monongahela River | 22,784 | 71 | 76 | 12 | 11 | 25 | 16 | 18 | 27 |
Tennessee River | 22,370 | 69 | 47 | 209 | 122 | 432 | 24 | 24 | 43 |
Tennessee Tombigbee Waterway | 19,403 | 33 | 64 | 9 | 3 | 19 | 38 | 10 | 16 |
Arkansas River | 18,351 | 47 | 84 | 11 | 13 | 12 | 35 | 23 | 25 |
Chicago River | 11,006 | 78 | 33 | 5 | 5 | 17 | 1 | 1 | 79 |
Caloosahatchee River | 9,509 | 56 | 11 | 5 | 2 | 2 | 26 | 16 | 8 |
Allegheny River | 8,898 | 85 | 12 | 8 | 4 | 13 | 7 | 3 | 9 |
Kanawha River | 8,260 | 64 | 81 | 52 | 20 | 72 | 34 | 23 | 37 |
Columbia River | 7,088 | 48 | 90 | 32 | 30 | 24 | 85 | 90 | 77 |
St. Mary's River | 5,417 | 80 | 88 | 27 | 16 | 29 | 26 | 19 | 41 |
Cumberland River | 5,236 | 55 | 53 | 16 | 18 | 65 | 13 | 12 | 23 |
Calcasieu River | 5,104 | 47 | 1 | 10 | 14 | 18 | 37 | 45 | 33 |
NOTES: A lockage is the movement through the lock by a vessel or other matter. Commercial vessels include all vessels operated for purposes of profit and include freight and passenger vessels.
SOURCE: United States Army Corps of Engineers, Navigation Data Center, Lock Use, Performance, and Characteristics, (Alexandria, VA: annual issues). Available at www.navigationdatacenter.us/ as of May 2016.