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Gulf Island Fabrication (Houma Navigation Channel)

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MAINTENANCE DREDGING OF SHIPYARD FACILITIES IN THE HOUMA NAVIGATION CANAL WITHIN TERREBONNE PARISH

NAME OF APPLICANT: Gulf Island Fabrication, PO Box 310, Houma, LA 70361-0310 LOCATION OF WORK: In Houma Navigation Canal, Section 11, T17S-R17E and Sections 17, 15 and 1, T18S-R17E at 583 Thompson Road in Houma, Louisiana, in Terrebonne Parish, within the Terrebonne Basin in hydrologic unit (HUC 08090302), as shown on the attached drawings (Latitude 29.54986 N, Longitude -90.70693 W). CHARACTER OF WORK: The work described herein was previously authorized as MVN-2011-02558-WNN issued to Gulf Island, LLC. on February 27, 2012. The applicant has requested Department of the Army authorization to perform maintenance dredging on three existing slips and place the dredged material in a previously approved disposal area to allow ballasting of barges and vessels within the designated slip areas to proper draft. A total of approximately 445,900 cubic yards of accumulated sediment material are anticipated to be removed cumulatively from the three slips. The periodic maintenance activity is expected to occur on an as-needed basis. The proposed project would impact approximately 29 acres of non-vegetated water bottoms. The applicant has designed the project to avoid and minimize direct and secondary adverse impacts to the maximum extent practicable. No impacts to vegetated water bottoms or to wetlands are proposed or anticipated and all dredged materials will be placed into a previously authorized disposal area.

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