Table 1-3 Selected Inland Waterway Lock Characteristics: 2013
| River | River Mile a | Lock Chamber Name | Length, feet | Width, feet | Age, years | Tons in 2013, million b | Avg. Delay per Tow, hr b | Outages in 2013 b | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Number | Hours | Avg. hr. per outage | ||||||||
| Ohio | 6.2 | Emsworth Lock & Dam Aux. | 360 | 56 | 93 | |||||
| Ohio | 6.2 | Emsworth Lock & Dam | 600 | 110 | 93 | 19.6 | 3.02 | 54 | 1,048 | 19.41 |
| Ohio | 846 | John T. Myers Lock & Dam Aux. | 600 | 110 | 39 | |||||
| Ohio | 846 | John T. Myers Lock & Dam | 1,200 | 110 | 39 | 60.7 | 0.65 | 99 | 70 | 0.71 |
| Ohio | 938.9 | Lock & Dam 52 Aux. | 600 | 110 | 86 | |||||
| Ohio | 938.9 | Lock & Dam 52 | 1,200 | 110 | 45 | 84.0 | 8.61 | 44 | 999 | 22.70 |
| Mississippi | 200.8 | Melvin Price Lock & Dam Aux. | 600 | 110 | 20 | |||||
| Mississippi | 200.8 | Melvin Price Lock & Dam | 1,200 | 110 | 24 | 40.1 | 0.99 | 6 | 14 | 2.33 |
| Mississippi | 185.5 | Chain of Rocks L/D 27 Aux. | 600 | 110 | 61 | |||||
| Mississippi | 185.5 | Chain of Rocks L/D 27 | 1,200 | 110 | 61 | 49.8 | 6.24 | 4 | 73 | 18.25 |
| GIWW East | 7 | Inner Harbor Navigation Canal Lock | 640 | 75 | 91 | 15.7 | 12.42 | 29 | 93 | 3.21 |
| Columbia | 292 | McNary Lock & Dam | 675 | 86 | 61 | 6.1 | 0.17 | 0 | 0 | N/A |
a Miles from the 0.0 milepoint reference location, usually at the mouth of the river, except on the Ohio River where mile 0.0 is at the source of the river at Pittsburgh, PA.
b Includes all lock chambers at sites with more than one chamber.
KEY: Aux = Auxiliary; GIWW = Gulf Intracoastal Waterway; L/D = Lock & Dam; N/A = Not Applicable.
SOURCES: U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center, Locks by Waterway, Tons Locked by Commodity Group, CY 1993 - 2013. Available at http://www.navigationdatacenter.us/lpms/cy2013comweb.htm as of June 2015. U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center, Locks by Waterway, Lock Usage, CY 1993 - 2013. Available at http://www.navigationdatacenter.us/lpms/lock2013web.htm as of June 2015. U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center. Locks by Waterway, Lock Unavailability, CY 1993 - 2013. Available at http://www.navigationdatacenter.us/lpms/data/lock2013webunavail-021914.htm as of June 2015. U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center, Lock Characteristics General Report. Available at http://www.navigationdatacenter.us/lpms/pdf/lkgenrl.pdf as of June 2015.