From: Burns, Matthew To: Stukas, Heather CIV USARMY CENAE (USA); Perry, Bill Subject: [Non-DoD Source] RE: Rockland Safe Harbor - Plan Changes Date: Tuesday, October 26, 2021 10:58:53 AM Thanks Heather and Bill. Let me know if I can do anything. Matt From: Stukas, Heather CIV USARMY CENAE (USA) Sent: Tuesday, October 26, 2021 8:34 AM To: Perry, Bill Cc: Burns, Matthew Subject: RE: Rockland Safe Harbor - Plan Changes EXTERNAL: This email originated from outside of the State of Maine Mail System. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hear back, the plans attached are the finial design, did request a clean set of plans that don’t highlight changes. Bill – let’s talk when you get a chance to determine if reinitiate consultation is going to be required. I have attached their new narrative of the changes. Heather S. Stukas Project Manager Maine Project Office U.S. Army Corps of Engineers 442 Civic Center Drive, Suite 350 Augusta, ME 04330 Office (207)623-8367 ext. 8 or (978)318-8678 Cell (207)272-5219 https://www.facebook.com/CorpsRegulatoryMaineProjectOffice/ In order for us to better serve you, we would appreciate your completing our Customer Service Survey located at https://regulatory.ops.usace.army.mil/customer-service-survey/ From: Stukas, Heather CIV USARMY CENAE (USA) Sent: Tuesday, October 26, 2021 7:57 AM To: Perry, Bill Cc: Matthew Burns Subject: Rockland Safe Harbor - Plan Changes Good Morning Bill & Matt, Yesterday afternoon, I received an email from the agent that the plans (see Attachment) for Safe Harbor Rockland. I response back asking to be informed when the plans are finalized. I did mention to them that USWFS and Corps may have to reinitiate consultation for both ESA and EFH. Harbor Rockland. I response back asking to be informed when the plans are finalized. I did mention to them that USWFS and Corps may have to reinitiate consultation for both ESA and EFH. Bill – when you have a second, could you please call be to discuss NFMS comments of EFH. I’m free from 7:00am to 1:30pm each day, except Thursday. Heather S. Stukas Project Manager Maine Project Office U.S. Army Corps of Engineers 442 Civic Center Drive, Suite 350 Augusta, ME 04330 Office (207)623-8367 ext. 8 or (978)318-8678 Cell (207)272-5219 https://www.facebook.com/CorpsRegulatoryMaineProjectOffice/ In order for us to better serve you, we would appreciate your completing our Customer Service Survey located at https://regulatory.ops.usace.army.mil/customer-service-survey/ 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 26 27 27 29 30 31 17 17 17 18 20 FEDERAL HARBOR CHANNEL "DUE EAST" CITY CHANNEL EXISTING FLOATING DOCKS EXISTING FIXED PIER EXISTING FIXED PIER WITH WAVE FENCE EXISTING RIP-RAP REVETMENT NOTES: 1. CONTOURS ARE IN FEET AND REFERENCE MEAN LOW WATER (MLW). 2. CONTOURS BASED ON DEC. 2009 SURVEY BY GARTLEY AND DARSKY AND UPDATED SURVEY NOV. 2017 SURVEY BY ECO-ANALYSTS. FEDERAL CHANNEL OFFSET CITY CHANNEL OFFSET ROCKLAND, MAINE EXISTING CONDITIONS PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE: (207) 236-6757 WWW.LANDMARKMAINE.COM EXISTING SUBMERGED LAND LEASE (0045B-L-29) EXISTING REVETMENT PROPERTY LINE HIGHEST ANNUAL TIDE MEAN HIGH WATER EXISTING SUBMERGED LAND LEASE (0045B-L-29) EXISTING REVETMENT EXISTING RIVERWALK EXISTING FIXED PIER OVER REVETMENT/ GRANITE WALL EXISTING PARKING EXISTING GANGWAYS MEAN LOW WATER Sheet revised 20-July-2021 to label MLW 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 26 27 27 29 30 31 17 17 17 18 20 FEDERAL HARBOR CHANNEL "DUE EAST" CITY CHANNEL EXISTING FIXED PIER WITH WAVE FENCE EXISTING FLOATING DOCKS EXISTING RIP-RAP REVETMENT EXISTING FIXED PIER PROPOSED TIMBER FLOATING DOCKS PROPOSED ADA GANGWAY (6'x80') PROPOSED CONCRETE FLOATING DOCKS PROPOSED GANGWAY ACCESS PLATFORM (576 SF) 30 40 30 40 40 40 40 40 PROPOSED FLOATING CONCRETE WAVE ATTENUATOR DOCKS PROPOSED CONCRETE FLOATING DOCKS DOCK "A" DOCK "B" DOCK "C" MEAN HIGH WATER LINE REMOVE EXISTING DOCKS AND REPLACE WITH HEAVY DUTY FLOATING DOCKS NOTES: 1. CONTOURS ARE IN FEET AND REFERENCE MEAN LOW WATER (MLW). 2. CONTOURS BASED ON DEC. 2009 SURVEY BY GARTLEY AND DARSKY AND UPDATED SURVEY NOV. 2017 SURVEY BY ECO-ANALYSTS. CITY CHANNEL OFFSET FEDERAL CHANNEL OFFSET ROCKLAND, MAINE PROPOSED IMPROVEMENTS OVERVIEW SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM PROPOSED FIXED LANDWARD PIER EXTENSION 30 30 30 30 30 30 EXISTING SUBMERGED LAND LEASE (0045B-L-29) HIGHEST ANNUAL TIDE MEAN HIGH WATER DOCK LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK FIXED LANDWARD PIER EXTENSION SLIP LEGEND DOUBLE LOADED SINGLE LOADED 40 30 PROPERTY LINE MEAN LOW WATER 1 1 2 Sheet revised 01-October-2021 fixed pier access 1 Sheet revised 17-September-2021 to update access Sheet revised 20-July-2021 to label MLW 2 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 26 27 27 29 30 31 17 17 17 18 20 FEDERAL HARBOR CHANNEL "DUE EAST" CITY CHANNEL N:158603.99 E:824906.53 N:158452.86 E:825039.04 N:158482.38 E:825139.43 N:158543.68 E:825196.21 N:158618.14 E:825257.28 N:158632.20 E:825516.90 EXISTING RIP-RAP REVETMENT EXISTING FIXED PIER WITH WAVE FENCE EXISTING FIXED PIER EXISTING FLOATING DOCKS DOCK "A" DOCK "B" DOCK "C" PROPERTY LINE ROCKLAND, MAINE PROPOSED DOCK COORDINATES SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM NOTE: COORDINATES REFERENCE NAD83, MAINE, EAST ZONE. HIGHEST ANNUAL TIDE LINE MEAN HIGH WATER LINE DOCK LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK FIXED LANDWARD PIER EXTENSION 1 1 2 Sheet revised 01-October-2021 fixed pier access 1 Sheet revised 17-September-2021 to update access 2 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 26 27 27 29 30 31 17 17 17 18 20 FEDERAL HARBOR CHANNEL "DUE EAST" CITY CHANNEL 2 Sheet revised 01-October-2021 fixed pier access 1 Sheet revised 17-September-2021 to update access 30 40 40 40 40 40 40 EXISTING FIXED PIER WITH WAVE FENCE DOCK "A" DOCK "B" DOCK "C" PROPERTY LINE ROCKLAND, MAINE APPROXIMATE ANCHOR PILE PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM STEEL OR TIMBER ANCHOR PILES(~95) PILE LEGEND DOCK LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK 30 30 30 30 30 30 30 HIGHEST ANNUAL TIDE LINE MEAN HIGH WATER LINE FIXED LANDWARD PIER EXTENSION MEAN LOW WATER LINE 1 2 "DUE EAST" CITY CHANNEL 150' 150' 150' 150' 90' 155' 260' 20' 6' 15' 75' 12' 75' 12' 90' 20' 47' 15' 51' A B 172' D E 24' 24' 24' 2 Sheet revised 01-October-2021 fixed pier access 1 Sheet revised 17-September-2021 to update access PROPOSED ADA COMPLIANT GANGWAY (6'x80') PROPOSED CONCRETE FLOATING DOCKS PROPOSED GANGWAY ACCESS PLATFORM (576 SF) DOCK "A" FEDERAL CHANNEL OFFSET CITY CHANNEL OFFSET ROCKLAND, MAINE DOCK A DIMENSION PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM PROPOSED FLOATING CONCRETE WAVE ATTENUATOR DOCKS EXISTING GANGWAY (TO REMAIN) EXISTING GANGWAY (TO REMAIN) LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK DOCK "A" T-HEAD 2 1 150' 150' 150' 150' 90' 155' 12' 260' 20' 163' 10' 10' 6' 47' 15' 51' 172' 24' 24' 1 Sheet revised 17-September-2021 to update access PROPOSED ADA COMPLIANT GANGWAY (6'x80') PROPOSED CONCRETE FLOATING DOCKS REPLACE EXISTING FLOATING TIMBER DOCKS WITH CONCRETE FLOATING DOCKS EXISTING FLOATING TIMBER DOCKS (TO REMAIN) EXISTING FIXED PIER (TO REMAIN) DOCK "B" FEDERAL CHANNEL OFFSET ROCKLAND, MAINE DOCK B DIMENSION PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM PROPOSED FLOATING CONCRETE WAVE ATTENUATOR DOCKS LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK CITY CHANNEL OFFSET DOCK "A" T-HEAD EXISTING GANGWAY (TO REMAIN) 1 1 155' 12' 163' 35' TYP. 80' 10' 10' 4' TYP. 10' 47' 51' C 30' TYP. 30' TYP. 35' TYP. 4' TYP. 10' 248' 172' 49' EXISTING FLOATING TIMBER DOCKS EXISTING DOCKS (TO REMAIN) PROPOSED TIMBER FLOATING DOCKS DOCK "C" FEDERAL CHANNEL OFFSET ROCKLAND, MAINE DOCK C DIMENSION PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM LEGEND TIMBER FLOATING DOCKS CONCRETE FLOATING DOCKS FLOATING CONCRETE WAVE ATTENUATOR DOCK MHW: +4.4' NAVD88 MLW: -5.4' NAVD88 12' TO 15' (VARIES) FREEBOARD 1.5' TO 2.5' DRAFT 1.0' TO 2.0' ANCHOR PILE PILE CAP ENCAPSULATED FLOTATION PROPOSED CONCRETE FLOATING DOCK APPROXIMATE EXISTING GRADE EXTERNAL PILE GUIDE VARIES TYPICAL CONCRETE FLOATING DOCK SECTION A ROCKLAND, MAINE TYPICAL CONCRETE FLOATING DOCK DETAILS SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM MHW: +4.4' NAVD88 MLW: -5.4' NAVD88 ANCHOR PILE PILE CAP ENCAPSULATED FLOTATION FLOATING CONCRETE WAVE ATTENUATOR DOCK APPROXIMATE EXISTING GRADE 20' (TYP.) FREEBOARD 1.5' TO 2.5' DRAFT 4' - 8' VARIES INTERNAL PILE GUIDE B TYPICAL FLOATING CONCRETE WAVE ATTENUATOR DOCK SECTION ROCKLAND, MAINE TYPICAL FLOATING CONCRETE WAVE ATTENUATOR SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM MHW: +4.4' NAVD88 MLW: -5.4' NAVD88 4.0' TO 10.0' (VARIES) FREEBOARD 1.5' TO 2.5' DRAFT 1.0' TO 2.0' ANCHOR PILE PILE CAP TIMBER FRAMED FLOATING DOCK POLYTUB FLOTATION APPROXIMATE EXISTING GRADE TIMBER DECKING TIMBER FRAMING VARIES C TYPICAL TIMBER FLOATING DOCK SECTION ROCKLAND, MAINE TYPICAL TIMBER FLOATING DOCK DETAIL SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM 24' VARIES APPROXIMATE EXISTING GRADE PROPOSED RAILING 24' PROPOSED GANGWAY ACCESS PLATFORM PROPOSED ADA COMPLIANT GANGWAY EXISTING ROCK QUAY WALL MHW MLW PROPOSED SUPPORT PILES (9 TOTAL) PROPOSED GANGWAY PLATFORM SUPERSTRUCTURE D TYPICAL GANGWAY ACCESS PLATFORM SECTION E TYPICAL GANGWAY ACCESS PLATFORM SECTION ROCKLAND, MAINE TYPICAL GANGWAY ACCESS PLATFORM DETAILS SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM EXISTING FIXED PIER RAILING EXISTING RAILING EXISTING PIER/ ROCK QUAY WALL MHW: +4.4' NAVD88 MLW: -5.4' NAVD88 CROSS BRACING CROSS BRACING APPROXIMATE EXISTING GRADE 2 Sheet revised 17-September-2021 to update access 2 10 15 16 20 20 17 YS-16' 65' 48' 7' 9' 31' PROPOSED PIER EXTENSION ROCKLAND, MAINE SHOREWARD PIER EXTENSION LAYOUT SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM EXISTING END OF PIER EXISTING RESTAURANT EXISTING RIP-RAP REVETMENT (UNDER PROPOSED PIER EXTENSION) F HIGHEST ANNUAL TIDE LINE MEAN HIGH WATER LINE PROPOSED CONCRETE RETAINING WALL MEAN LOW WATER LINE Sheet revised 20-July-2021 to label MLW 16' PROPOSED PIER EXTENSION ROCKLAND, MAINE TYPICAL LANDWARD PIER EXTENSION SECTION SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM RAILING CONCRETE FOOTING PILE EMBEDDED IN CONCRETE EXISTING REVETMENT (MAY REQUIRE SOME ADDITIONAL RIP-RAP TO LEVEL FOR CONCRETE FORM) F TYPICAL LANDWARD FIXED PIER EXTENSION SECTION CROSS BRACING EXCAVATE UPLAND AND REVETMENT FOR FOOTING (REPLACE REVETMENT STONE AFTER FOOTING IS SET) CONCRETE RETAINING WALL 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 22 22 23 23 24 24 25 25 25 26 26 26 27 27 27 27 28 28 29 29 29 30 30 30 31 31 32 33 18" PVC 25 26 17 17 17 18 20 20 21 50'-PB "DUE EAST" CITY CHANNEL 50' 250' 65' EXISTING RIP-RAP REVETMENT EXISTING FIXED PIER NOTES: 1. CONTOURS ARE IN FEET AND REFERENCE MEAN LOW WATER (MLW). 2. CONTOURS BASED ON DEC. 2009 SURVEY BY GARTLEY AND DARSKY AND UPDATED SURVEY NOV. 2017 SURVEY BY ECO-ANALYSTS. DREDGE DEPTH LEGEND -6' MLW: ~2.0 ACRES -8' MLW: ~0.5 ACRES -10' MLW: ~0.3 ACRES -13' MLW: ~2.2 ACRES PROPOSED DREDGE AREA PROPOSED DREDGE AREA FEDERAL CHANNEL OFFSET G H ROCKLAND, MAINE PROPOSED DREDGE PLAN SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM HIGHEST ANNUAL TIDE MEAN HIGH WATER MEAN LOW WATER 2 Sheet revised 01-October-2021 fixed pier access 1 Sheet revised 17-September-2021 to update access Sheet revised 20-July-2021 to label MLW 1 2 ELEVATION (FT-MLW) DISTANCE (FT) -20 -15 -10 -5 0 5 10 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 ELEVATION (FT-MLW) DISTANCE (FT) -20 -15 -10 -5 0 5 10 0+00 0+50 1+00 1+501+75 DESIGN DREDGE DEPTH: -6' MLW NOTES: 1. PROFILES ARE IN FEET AND REFERENCE MEAN LOW WATER (MLW). 2. PROFILES BASED ON DEC. 2009 SURVEY BY GARTLEY AND DARSKY AND UPDATED SURVEY NOV. 2017 SURVEY BY ECO-ANALYSTS. PROPOSED DREDGE AREA DESIGN DREDGE DEPTH: -6' MLW DESIGN DREDGE DEPTH: -8' MLW DESIGN DREDGE DEPTH: -10' MLW DESIGN DREDGE DEPTH: -13' MLW G TYPICAL DREDGE PROFILE H TYPICAL DREDGE PROFILE DREDGE TEMPLATE MATERIAL TO BE REMOVED MATERIAL TO BE REMOVED ROCKLAND, MAINE PROPOSED DREDGE PLAN - PROFILES SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM 10 10 10 10 13 14 15 15 15 15 15 15 16 20 20 22 22 23 23 24 24 25 25 25 26 26 26 27 27 27 27 28 28 29 29 29 30 30 30 31 31 32 33 18" PVC 25 26 17 17 17 18 20 20 21 50'-PB FEDERAL HARBOR CHANNEL "DUE EAST" CITY CHANNEL EXISTING RIP-RAP REVETMENT EXISTING FIXED PIER NOTES: 1. CONTOURS ARE IN FEET AND REFERENCE MEAN LOW WATER (MLW). 2. CONTOURS BASED ON DEC. 2009 SURVEY BY GARTLEY AND DARSKY AND UPDATED SURVEY NOV. 2017 SURVEY BY ECO-ANALYSTS. 3. PROPOSED DREDGE CONTOURS, VOLUMES, AND AREAS ARE BASED ON CONDITIONS AT TIME OF SURVEY AND MAY VARY AT TIME OF CONSTRUCTION. PROPOSED -13' MLW DREDGE AREA (91,975 SF - ~11,055 CY) FEDERAL CHANNEL OFFSET ROCKLAND, MAINE TURBIDITY CONTROL NOTES AND DETAILS SH ROCKLAND - NRPA APPLICATION SURVEYORS & ENGINEERS 135 Rockland STREET ROCKPORT , MAINE 04856 PHONE : (207) 236-6757 WWW.LANDMARKMAINE.COM TURBIDITY CURTAIN, IF NECESSARY (LOCATION IS INDICATIVE AND SHALL BE DEPLOYED AROUND THE CURRENT AREA OF DREDGING DURING CONSTRUCTION) -6 -5 -6 -4 -7 -8 -7 -8 -10 -10 -13 -9 -12 -13 -10 -13 -6 -6 -5 -4 -5 PROPOSED CONTOURS PROPOSED -6' MLW DREDGE AREA (17,550 SF - ~450 CY) PROPOSED -10' MLW DREDGE AREA (13,120 SF - ~720 CY) PROPOSED -8' MLW DREDGE AREA (9,540 SF - ~200 CY) PROPOSED -6' MLW DREDGE AREA (5,750 SF - ~90 CY) FLOATING TURBIDITY BARRIERS D 2 TYPE II Slotted PVC Connector Pipe (Metal Collar Reinforced) Closed Cell Solid Plastic Foam Flotation Curtain To Reach Bottom Up To Depths of 10'. Two (2) Panels To Be Used For Depths Greater Than 10'. Nylon Reinforced PVC Fabric HIGHEST ANNUAL TIDE MEAN HIGH WATER MEAN LOW WATER Sheet revised 20-July-2021 to label MLW Project Scope ScopeOverview Themarinaexpansion project includes thefollowing primaryproject elements: 1. LandwardExtension of an Existing Fixed Pier 2. Dock A o FixedGangway Access Platform o 6’ X 80’ ADA-Compliant Gangway o Floating Concrete Docks o Floating Concrete WaveAttenuator Docks 3. Dock B -Floating ConcreteDocks 4. Dock C –Floating Timber Docks 5. Dredging This proposed marina expansion is illustrated in the following figure for reference, noting that this figure istaken fromSheet 3ofthe provided Permit Drawings. The specific scope ofwork is described in more detail in the following sections. New Structures andDocks Landward Extension of Existing Fixed Pier The existing 16’ wide fixed pier will be extended landward by 65’. This new section of pier will allow a better delineation of the entrance of the marina and the entrance of the restaurant and will provide a public viewing area. Additional landward improvements to connect this pier to public paths are not included at this time. The structure is expected to be primarily of timber construction, including timber decking and framing on timber piles supported on concrete footings to generally match the existing pier in terms of materials and design. The total area of the structure, including necessary tie-ins to the existing pier, is 981 sf. The structure is expected to require a maximum of 30 piles, noting that the piles will be supported on a continuous concrete footer and as such will not bedriven below existing grades. Dock A Dock A refers to those docks located to the east of the existing pier and wave screen as well as the northernmost “T” head adjacent to the City Channel. A new 12’X16’ (192 sf) 576 sf gangway access platform will be built directly adjacent to the existing fixed pier to support a new 6’x80’ (480 sf less 108 sf overlapping = 372 sf) aluminum ADA-compliant gangway to provide pedestrian access to Dock A. The gangway access platform is expected to be supported by a maximum of 6 9 piles (see subsequent discussion regarding piles). A gallows will require 2 piles to support and lift the bottom end of the gangway. The new floating docks for Dock A will be monolithic concrete pontoons which consist of a foam core encapsulated by reinforced concrete. The outer portion of Dock A which extends past the end of the existing fixed pier will be wider and include special design characteristicssuch as higher mass, deeper draft, etc. to attenuate incoming waves. Dock A includes a total of 15,874 15,784 sf of new floating dock area, 6,800 7,400 sf of which will be Wave Attenuating Docks. The floating docks will be anchored via a maximum of55 39piles(see subsequent discussion regarding piles). Dock B Dock B refers to those docks located on the western side of the existing fixed pier and wave screen. These docks will be primarily accessed by the existing gangways to the west side of the existing pier. However, a small floating concrete dock will connect Dock A to Dock B to ensure that all docks may be accessed via the new ADA-compliant gangway as/if needed. The new floating docks will be monolithic concrete pontoons as described above. The Dock B improvements include removal of 1,628 sf of existing timber floating docks and installation of 4,023 sf of new floating concrete docks. The floating docks will be anchored via a maximum of20 13 piles (see subsequent discussion regarding piles). Dock C Dock C refers to the new dock “tree” of smaller boat slips located west of the existing floating docks. The new floating docks for Dock C will consist of timber decking and framing on polytube flotation pontoons (i.e. – foam core fully encapsulated by polyethylene cladding). The new docks will be accessed via an existing floating timber dock. Dock C includes a total of 5,611 sf of new floating timber docks, which will be anchored via amaximum of40 32 piles (see subsequent discussion regarding piles). Pile Considerations The number of piles indicated in the previous sections and used to calculate direct impact represent the maximum number of piles anticipated to be required for the various structures/docksbased upon updated conservative assumptions. As is typical within the recreational marina industry, the final design of the floating dock systems (including the required number, size, and type of piles) will be completed by the selected dock manufacturer based upon their proprietary design. The dock manufacturer will be selected via a competitive bidding process which will be initiated upon receipt of regulatory authorizations, including the NRPAapproval. Since the specificnumber, size, and type of piles cannot be known at this time, a maximum number of piles has been determined via development of a conservative pile plan (Sheet 5 of the Permit Drawings). In practice, the total number of piles is expected to be less than the totalsindicated herein. While specific pile sizes and types arenot known at this time, the following summarizethe anticipated pile types and sizes based on conservative assumptions:  Shoreward Extension of Existing Fixed Pier: Timber piles 12” -18” in diameter , noting that these will be supported on a concrete footing and will not require pile driving. A 2’ wide concrete footing will be considered when calculating direct intertidal impact(116 sf).  Gangway Access Platform: Assume timberpiles 12” in diameter. 69piles@1 sf/ea= 69sf direct impact 2 gallowspiles@1 sf/ea= 2sf direct impact  Floating Concrete Docks (DockA): Assume steel pipe piles 16” diameter. 5524 piles@1.4sf/each= 7733.6sf direct impact  Floating Concrete Attenuation Docks (Dock A): Assume steel pipe piles 20” diameter. 2015 piles@2.2sf/ea= 4433 sf direct impact  Floating Concrete Docks (DockB): Assume steel pipe piles 16” diameter. 5513 piles@1.4sf/each= 7718.2sf direct impact Remove9, 12” wood piles 9sf Net impact =68 9.2 sf  Floating Timber Docks(Dock C): Timber piles 12” in diameter 4032 piles@1 sf/ea=40 32 sf direct impact Additionally, the following Best Management Practices (BMPs) will be encouraged and/or requiredfor all piledriving activities:  Contractor shall use cushion blocks or other noise attenuation devices when using an impacthammer.  Contractor shall usea “soft start” for apiledriving activities (i.e. – driving does not occurat full power at first). Dredging Dredging will be required to accommodate the increased size and number of vessels that will be utilizing the facility. The dredge plan (Sheet 15-17 of the Permit Drawings) was developed to minimize the total volume of dredging required while maximizing the operational efficiency andsafenavigationfor visiting vessels. Tomorrow Proposed dredge depths are indicated in the Permit Drawings and range from -6’ to -13’ relative to Mean Low Water (MLW). The proposed dredge plan results in a total of approximately 12,520 cy of excavation encompassing and area of approximately 138,000 sf or 3.2 acres. Coastal Wetland Impacts The impacts associated with existing improvements and proposed improvements are summarized below: Coastal Wetland ImpactDirect IndirectYearStructure DescriptionSub-Tidal(sf)Intertidal(sf)Sub-Tidal(sf)Intertidal(sf)Notes: 2000Breakwater restoration, Pier, and Dredge(2000)106812008Boat House Conversion 022010SomeFloats and Piles added16321132021Pilings235118.84Floats (Docks A, B, and C)23,88023,790Access Pier and Ramp Dock A672948Landward extension of pier w/footings1162055,6Existing Impact Totals10843211Proposed 2021 Impact Totals235118.81162455224738205CumulativeDirect/Indirect Impact Total14351318.827968281541Include a combination of sub-tidal and tidal (amounts unknown) 2All work adjacent to the resource, 1386 sf3Note: 65 sf of direct and13,160 sf of indirectimpact were approvedin 20104244127.8sf of impact from proposedpiles less 9 sf ofreplacedpiles in DockB. Net 235118.8 sf5660 sf of the proposed pier extension adjacent to the coastal wetland in area of existing riprap6All impact is on a previously placed riprap revetment