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1 <br /> 1 <br /> ' end of the existing float. This reconfiguration will provide t4.5' of water at MLW for the entire <br /> ' length of the boat docked on the outside. It will also allow for the berthing of smaller boats—a <br /> tender, day sailor, canoes or kayaks —on the inside of the float where water depths vary between <br /> 2.7 and 2.5' at MLW. Two free-standing tie-off piles are also proposed 6.5' at each end of the <br /> ' float, but no further into the waterway. <br /> The result of the redesign is a more secure berth for the owner's boat with no additional <br /> ' infringement on navigation space. And, when the boat is not a its berth,there will be <br /> approximately 8 additional feet of navigation space. This extra space for the public is the trade <br /> off for the 32 sq. ft. of additional float area, the existing float being 160 sq. ft. and the proposed <br /> ' being 192 s.f. Further, no additional piles are required in intertidal or near-subtidal bottom for <br /> the reconfiguration. <br /> ' The new structure will extend t64' beyond MHW and±24' beyond MLW. <br /> The project also proposes a perched beach. The primary purpose of this feature is to retain the <br /> ' cover for the toe stones of the revetment. The construction employs three 2' diameter coconut <br /> fiber logs set as a pyramid with the two lower logs in a shallow trench. The outer logs can be <br /> pre-plugged with Spartina patens. The logs will be set just landward of the salt marsh. Once the <br /> ' logs are in place, clean sand fill of compatible grain size with the native beach material will be <br /> used to fill the area behind the logs. <br /> ' The logs work to retain and build the beach by retaining sand moved by wave run-up while <br /> allowing water to drain back through them. Because we will fill them to entrapment capacity at <br /> ' the time of installation, no impact on long shore sediment transport is anticipated. <br /> ' Impacts <br /> The project will have no impacts on surface or groundwater quantity. The reduction in CCA <br /> ' treated materials should result in beneficial impacts to surface water quality and prevention of <br /> pollution interests. <br /> ' Open work pile-supported piers are not deemed adverse to storm damage or flood prevention <br /> interests. <br /> ' The site is not mapped by MNHP as habitat for animals of concern. Neither listed plants nor <br /> animals have been observed in the proposed work areas for the site. <br /> 1 • <br />