A hybrid system using both methods simultaneously may be appropriate under certain conditions.īased on the engineering study and consistent with the availability of dredge grant funds, contractor services, and dredging equipment, the following plan will be implemented.ġ) Priority Dredging: Main channel navigation in the vicinity of the Town Marina, Firefly Cove, and designated navigation channels.
Hydraulic dredging (preferred) affords the greatest flexibility -and- excavation dredging (alternate) requires dry sedimentation conditions and special equipment access within the Lake-bed to accomplish. Sedimentation removal in the inlet channel along the Morse Park border and within the Lake boundary should be limited to a narrow navigation channel because extensive sedimentation removal in the river approach inlet was shown to have little to no effect on flow velocity.ĭiscussion: To maximize Lake availability for summer recreational activities and to minimize financial impact on local businesses, the dredging season will begin in March 2022 after the Lake returns to full pond and continue throughout 2022/2023 until Memorial Day 2023 with the exceptions of holidays and heavy boating times.
Opening the mouth of the river inlet channel (by excavating a portion of Morse Park) will further reduce flow velocity, but was deemed to be impractical. Shallow depths in this area also present the greatest challenge to operating watercraft. The engineers concluded that sedimentation removal from the easternmost tip of Morse Park to the Firefly Cove plateau will create a low water flow area that will help prevent sedimentation from traveling deep into the main channel where dredging is difficult and costly. Tim Shellenberger, Ati Manay, and Bruce Hotton in February of 2021 (ref a). Additionally, sedimentation removal will be prioritized in areas that reduce river inlet velocity to promote future sedimentation in areas that are readily accessible.īackground: A hydrodynamic flow and sedimentation analysis of the Rocky Broad inlet channel was conducted by flow dynamic engineers Mr.
Goal: The 2022-2023 Town of Lake Lure dredging plan seeks to remove silt accumulated on the west end of the Lake to allow for safe navigation of waterborne vessels into the Town Marina Cove, Firefly Cove, and the Rocky Broad inlet channel within the Lake boundary.
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