Civil Engineering and the Chicago Ship Canal
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Welcome to World Ocean Radio… I’m Peter Neill, Director of the World Ocean Observatory. Civil Engineering. It is such an elegant term, combining the art of making practical application of pure science with the needs and best intentions of citizens and society. It embodies the making of grand things – like dams and bridges, highways and canals – that are the infrastructure of modern civilization. One such project in the United States is the Chicago Ship Canal, a 28-mile long construct, opened in the late 19th century to connect the Chicago River to the Des Plaines River, to reverse direction of the natural flow, open navigation from the Great Lakes to the Mississippi River watershed all the way to the Gulf of Mexico, and provide additional health service by managing the sewage and waste water treatment and disposal of America’s “second city.” It remains an achievement; in 1999, the Canal was designated a Civil Engineering Monument of the Millennium by the American Society of Civil Engineers and, in 2011, listed on the US National Register of Historic Places. Construction and operation have been controversial since the beginning. When it became clear that the waste from the growing city, historically deposited into the river and then to Lake Michigan, demanded a dramatic response. The building process was tumultuous, with accidents, strikes, expansions, and the added demand for the ever increasing number of ships and barges transporting food from Lake Michigan to the Mississippi and vice versa. Today, operation of the canal is regulated among city and state authorities, adjacent Great Lakes states, and an international treaty with Canada. Despite all this, the canal became and remains polluted with industrial chemicals and, because of an aversion to chlorine not fully disinfected human waste that has supported high incidence of “human fecal coliform colonies” that render the water “not suitable for human body contact.” It gets more complicated. In the 1970s, the US Environmental Protection Agency had authorized the introduction of Asian carp as a means to remove algae from fish farms in Arkansas, downstream on the Mississippi, many of which escaped and migrated upstream toward Chicago where authorities erected an electrical barrier to keep them from entering Lake Michigan--voracious consumers of bottom and water column food, they impacted the supply for more vulnerable species. The threat remains, real, present, and adverse to every intent of the original purpose of the canal and to the future protection of the waterways, water supply, and water transportation system. What to do? The situation cries out for civil engineering. And the US Army Corps of Engineers has studied the situation for almost a decade and has proposed to close the canal by re-creating the natural barrier that was destroyed over a century ago at the very beginning. Sealing off the two systems again would prevent the carp--and the ever increasing amount of toxic waste--from moving between the rivers to the lake and vice versa, at an estimated cost of 15 to 18 billion dollars and 25 years to build. The irony is almost incomprehensible. What does any of this have to do with the ocean? Think on this: the natural barrier, destroyed and now perhaps to be restored, was the dividing line not just between one lake and one river, but between the Atlantic Ocean, through the Lakes and the St. Lawrence River, and the Gulf of Mexico, down the enormous watershed of the Mississippi. Think of all the land mass east of the Mississippi, south of the St. Lawrence, as an island surrounded by regional seas. Think of how our “anthro-engineered” solution defied the evolved configuration of the land and put in its place a new contrarian intrusion, a combined process artificially conceived and constructed that did not fulfill its intent, or worse. What can we learn from this history? That we need to think twice, every time we address a problem, so that we don’t create another, more difficult one in its stead. We need to trust the order and efficiency of Nature, not disorder, contravene, and disassemble its ways. We need to understand our place in a world already engineered, amazingly, for our benefit. Leave it alone. Love it to life. Let it serve and sustain our civility. We will discuss these issues, and more, in future editions of World Ocean Radio. - - - WORLD OCEAN RADIO IS A PROGRAM OF THE WORLD OCEAN OBSERVATORY, IN ASSOCIATION WITH WERU-FM, BLUE HILL, MAINE. WORLD OCEAN RADIO IS DISTRIBUTED BY THE PUBLIC RADIO EXCHANGE AND THE PACIFICA NETWORK. FIND OUR PODCAST ON ITUNES AND AT WORLD OCEAN OBSERVATORY DOT ORG.
The Chicago Ship Canal is a major feat of civil engineering, and has been controversial and problematic since the beginning. Pollution from an ever-growing human population, the added demand for increased ship and barge traffic, and the introduction of Asian carp into the waterway in the 1970s have posed increased challenges and new threats both upstream and downstream. In this episode of World Ocean Radio host Peter Neill outlines the present situation and the expensive, multi-year plan to restore a natural barrier that was destroyed more than 100 years ago.
About World Ocean Radio
Peter Neill, Director of the World Ocean Observatory and host of World Ocean Radio, provides coverage of a broad spectrum of ocean issues from science and education to advocacy and exemplary projects. World Ocean Radio, a project of the World Ocean Observatory, is a weekly series of five-minute audio essays available for syndicated use at no cost by college and community radio stations worldwide. A selection of episodes is also available in Portuguese, Spanish, French, Swahili, and Mandarin, enabling us to reach 75% of the world's population. For more information, visit WorldOceanObservatory.org/world-ocean-radio-global.
Episode Resources
< Closing the Chicago Canal is Still the Best Option for the Great Lakes [Milwaukee Wisconsin Journal Sentinel]
< Asian Carp Discovered Near Lake MIchigan [Chicago Tribune, June 2017]
< Chicago Sanitary and Ship Canal / US Army Corps of Engineers
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