Presentation on theme: "The Columbia/Snake System"— Presentation transcript:
1The Columbia/Snake System Each year, 4 million tons of commodities are shipped past Ice Harbor Dam on the Snake River, many traveling from the port at Lewiston, Idaho to export facilities at Portland, Vancouver, Longview, Kalama, and other lower Columbia River ports.Our navigation channel is a 14 foot deep channel, with a typical tow configuration of one tug and 4 or 4.5 barges, with a total tow capacity of about 13,000 tons of grain.We also do nuclear sub cores.
2Lower Snake TrafficCongress approved the Lower Snake River Dam project in Construction of the Lower Granite Dam began in By 1975, four dams had been built on the Snake River between Lewiston, Idaho and the Tri-Cities area in eastern Washington.
3Columbia River Traffic Total of 9 million tons on average, including 5 million wheat, 2 million fuel and oil, and 1 million+ in forestry products.
4SalmonSnake River spring/summer chinook salmon (Oncorhynchus tshawytscha), listed as Threatened in 1991; Snake River fall chinook salmon (O. tshawytscha), listed as Threatened in 1991; Snake River sockeye salmon (O. nerka), listed as Endangered in 1992; Snake River Basin steelhead (O. mykiss), listed as Threatened in 1998; Upper Columbia River spring run chinook salmon (O. tshawytscha), listed as Endangered in 1999; Middle Columbia River steelhead (O. mykiss), listed as Threatened in 1999; and Upper Columbia River steelhead, listed as Endangered in In addition, the resident Columbia Basin bull trout (Salvelinus confluentus) is listed as Threatened under the ESA.
5Technical Challenges Navigation or not. What does navigation cost? Deep Draft Multiport analysis.