Maintenance Dredging of Federal Navigational Channels in the St. Clair River, Michigan (supplemental Information Report to Final Environmental Impact Statement). PDF Download
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Author: United States. Army. Corps of Engineers. Detroit District
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Category : Dredging
Languages : en
Pages :
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Author: United States. Army. Corps of Engineers. Detroit District
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages :
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Author: United States. Army. Corps of Engineers. Detroit District
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Category : Clinton River (Mich.)
Languages : en
Pages : 170
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Category :
Languages : en
Pages : 14
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Author: CORPS OF ENGINEERS DETROIT MI DETROIT DISTRICT.
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Category :
Languages : en
Pages : 126
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The proposed action is to perform maintenance dredging of the St. Clair River when required to remove shoaling. Average annual volume removed is approximately 130,000 cubic yards consisting primarily of gravel, sand, and silt. The material removed will be disposed of deep water or placed on selected onshore sites. All materials scheduled for removal from the St. Clair River have been classified by the U.S. Environmental Protection Agency as suitable for unrestricted open water disposal. Most maintenance operations are accomplished by hopper dredge, but a derrickboat utilizing a bucket dredge removes channel obstructions if rock rather than sand or silt must be removed. The open water disposal sites used by the hopper dredge are located in the deep water of Lake Huron several miles north of the Blue Water Bridge and during 1976 in deep water of the North Channel adjacent to Point Au Chenes. The use of the North Channel disposal area will be discontinued after the 1976 work season. In subsequent years sediments removed from the lower reaches of the river will be stockpiled at an onshore site furnished by the Michigan Department of Natural Resources for future project was uses in maintenance and further development of the St. Clair Flats Wildlife Area. (Author).
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Category :
Languages : en
Pages : 42
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Author: United States. Army. Corps of Engineers. Detroit District
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 114
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Author: United States. Army. Corps of Engineers. Detroit District
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ISBN:
Category : Detroit River (Mich. and Ont.)
Languages : en
Pages : 196
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Author: United States. Army. Corps of Engineers. Detroit District
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 31
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Author:
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Category : Dredging
Languages : en
Pages : 0
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Author:
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Category :
Languages : en
Pages : 0
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FINALENVIRONMENTAL STATEMENT MAINTENANCE DREDGING OF THE ,«FEDERAL NAVIGATION CHANNEL AT MONROE HARBOR, MICHIGAN Prepared by:U..S. Army Engineer District Detroit, Michigan 1976 JULYSUMMARY .MAINTENANCE DREDGING OF THE FEDERAL NAVIGATION CHANNELATMONROE HARBOR, MICHIGAN ( ) DRAFT (X) FINAL ENVIRONMENTAL STATEMENT RESPONSIBLE OFFICE: U.S. ARMY ENGINEER DISTRICT, DETROITCORPS OF ENGINEERSP.O. BOX 1027DETROIT, MICHIGAN A8231.TELEPHONE: (313) 226-6752 1. NAME OF ACTION: (X) ADMINISTRATIVE ( ) LEGISLATIVE 2. , DESCRIPTION OF ACTION: Maintenance dredging of'Monroe Harbor,Michigan is normally performed annually during Aptil and Mayfor a period of about 1 1/2 months. Approximately 230,000 cubic yards of sediments will be dredged annually for the next 3-5 years until the area la filled. Once the site is filled, no further dredging will be done until another suitable disposal site is found and an environmental ' impact statement is prepared on the confined disposal site discharge location. This material has been classified as polluted and will be placed in a confined disposal facility to prevent the re-entry of contaminants into the aquatic system. The matetial is removed from a navigation channel and turning basin that ib approximately 5.5 miles in length; extending from the 21-foot water depth in Lake Erie to a point about 1.6 miles upstream of the mouth of the River Raisin. The disposal site is a AO acre diked area owned by the Detroit Edison Power Company located at the mouth of the River Raisin. 3. (A) ENVIRONMENTAL IMPACTS: The harbor dredging action will temporarily degrade water quality. The disposal of the polluted material into the confined disposal facility will convert the nowponded, former lake-shoal area Into a terrestrial environment. Commercial navigation requires maintenance dredging of the channel and harbor area for Immediate continued use. The proposed actions would: (1)-render a partial pollution abatementfunction through the removal of polluted sedime
