2021-062 - Laserfiche WebLink

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A TRUE COPY CERTIFICATION ON LAST PAGE J.R. SMITH, CLERK protection while each derelict vessel is being removed. In areas of low to moderate currents, a Type II floating turbidity barrier will be installed within a ten (10) foot radius of the vessel being removed prior to starting any removal activities. The turbidity barrier shall be anchored to the bottom of the waterway. 7. The Contractor is to provide appropriate BMPs for erosion control and turbidity prevention around the vessels/barges being used to remove the derelict vessel and around the perimeter of any upland staging site (where necessary). 8. The Contractor is to monitor turbidity levels throughout removal work. 9. In an effort to reduce turbidity, a crane, winch and/or approved alternate method is to be used to raise the derelict vessel from the water. 10. The Contractor will assess turbidity levels and allow them to return to an acceptable level similar to pre -project condition prior to removal of turbidity measures. 11. The dragging of vessels is to be avoided both on and off -shore. All vessels/barges used in vessel removal shall continually monitor water depths to avoid running aground. 12. The Contractor will load derelict vessels onto a barge and/or flat bed truck (or similar) for proper disposal. 13. The Contractor is to photo -document all removals as described in Item 6 below with pictures taken before, during and after removal. The Contractor will provide a daily written report of all removal activities. b. For Derelict Vessels That Are Floating or Lightly Aground: 1. The vessel is to be pumped out as needed and extracted (floated out) during high water. 2. Following extraction, the vessel is to be towed from the grounded location to a boat ramp or other removal point while avoiding and/or minimizing impacts to live bottom areas. c. For Derelict Vessels That Are Hard Aground: 1. The vessel is to be approached using shallow draft vessels. 2. The vessel is to be extracted using a crane from a shallow draft deck barge, by hand using the best available tools, or similar approach to minimize impacts to the site and surrounding areas. d. For Derelict Vessels Sunken in Shallow Water: 1. Install and inflate flotation bags as needed. 2. Lift the vessel with barge mounted crane or similar equipment.