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Home My WebLink AboutPresentation_12_18_25 ECOLOGICAL RESTORATION NOTICE OF INTENT BAYVIEW BOGS WEST YARMOUTH, MA December 18, 2025 Julianne Busa, PhD, PWS, Senior Resilience Scientist Michael Soares, Senior Wetland Scientist | 1 1 2 Bayview Bogs Restoration | 2 BAYVIEW BOGS Habitat diversity Stormwater management 2 | 3 BAYVIEW BOGS: ~90 ACRE SITE; 46 ACRES ABANDONED CRANBERRY BOGS LEWIS BAY ROUTE 28 BAYVIEW BOGS MAHER WELLS CAPE COD HOSPITAL Habitat diversity Stormwater management 3 Overview map Acreage ~90 acres Historic hydrology Thresholds? Connection to bay 4 Bayview Bogs Restoration | 4 HISTORIC HYDROLOGIC CHANGES Habitat diversity Stormwater management 4 | 5 EXISTING CONDITIONS BOG OUTLET (TIDAL RESTRICTION) More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 5 EXISTINGCONDITIONS: BOG PLATFORM | 6 EXISTING CONDITIONS BOG PLATFORM More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 6 | 7 EXISTING CONDITIONS PEAT More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 7 EXISTING CONDITIONS: PARK STREET | 8 EXISTING CONDITIONS PARK AVE More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 8 WHY RESTORE RETIRED CRANBERRY BOGS? | 9 April 9 10 Bayview Bogs Restoration | 10 AGRICULTURAL LEGACY PLACED SAND FILL OVER NATIVE PEAT ALTERATION OF HYDROLOGY LANDSCAPE SIMPLIFICATION PESTICIDE/HERBICIDE RESIDUES EXCESS NUTRIENTS FROM PAST FERTILIZATION LOSS OF FUNCTIONING WETLANDS DOMINANCE BY UPLAND PLANTS DITCHING/BERMS WATER CONTROL STRUCTURES LOSS OF BIODIVERSITY LOSS OF ECOSYSTEM SERVICES WATER QUALITY CONCERNS More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 10 WHAT DOES BOG RESTORATION LOOK LIKE? | 11 BEFORE DURING AFTER April 11 EXISTING CONDITIONS: PARK STREET | 12 PROCESS-BASED RESTORATION UNDO HYDROLOGIC ALTERATIONS RE-ENGAGE GROUNDWATER EXPOSE NATIVE SEED BANK SLOW THE FLOW FUTURE-FORWARD HABITAT & HYDRAULIC CONNECTIVITY ENGAGE BURIED PEAT LAYERS COST-EFFECTIVE CONSTRUCTION LET NATURE DO THE WORK REDUCE PEAK FLOWS / MITIGATES STORM DAMAGES ALLOW SEDIMENT TO SETTLE OUT FILTER NONPOINT SOURCE POLLUTANTS PLAN FOR CLIMATE REFUGIA/INLAND MARSH MIGRATION CLIMATE ADAPTATION LONG-TERM SELF-SUSTAINING ECOLOGICAL FUNCTION More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 12 EXISTING CONDITIONS: PARK STREET | 13 PROCESS-BASED RESTORATION MICROTOPOGRAPHY UN-STRAIGHTENING DITCHES More frequent and unpredictable storms, the 100-year flood of today becoming the 10-year flood of tomorrow, etc. Examples of flooding that occurred in towns throughout New England in 2023 A year when a lot of communities recognized how regular these events were becoming Why: undersized crossings, more impervious areas, restricting the floodplain or developing in floodplain 13 CO-BENEFITS ALONGSIDE RESTORATION OF FRESHWATER WETLANDS | 14 THERAPEUTIC LANDSCAPES SALT MARSH MIGRATION PASSIVE RECREATION RESOURCE/TRAILS Habitat diversity Stormwater management 14 Potential! Healthy, functioning wetlands Self-sustaining over time Respite and reflection Therapeutic landscapes Community emphasis Adaptable experience Accessibility Maximize access points Emphasize pedestrian access Viewsheds | 15 DECEMBER 2024 VISIONING WORKSHOP: THEMES WE HEARD “Healing the Landscape & Healing the Community” 15 Invasive species Balancing planning for tomorrow vs. future sea level rise Managing pedestrian/vehicle conflict Improve safety/perception of safety Open sightlines More users on the site/more access points  More eyes on site  fewer unmonitored corners Strategize long-term maintenance Parking constraints | 16 VISIONING CONCERNS/WHAT NEEDS TO CHANGE 16 THE SITE TODAY April 17 OVERALL RESTORATION CONCEPT Restored Hummock Hollow Wetlands Restored Tidal Connection Enhanced/Naturalized Pond Habitats Restored Freshwater Connection Restored Deep Marsh Area Improved Park Avenue Culverts Boardwalk Crossing Accessible Outer Loop Trail “Marsh Meander“ Boardwalk Overlook with Educational Signage Seating Area Neighborhood Trailhead Elevated Lookout Terraced Therapeutic Landscape Area Trailhead Parking 1 2 3 4 5 6 7 8 9 10 13 15 1 3 6 7 7 7 7 7 8 10 11 11 11 14 12 12 12 12 12 12 12 CAPE COD HOSPITAL LEWIS BAY BAYVIEW STREET WENDWARD WAY PARK AVENUE ROSETTA STREET ROUTE 28 GLENWOOD STREET CLEVELAND WAY April 18 BIRD’S EYE VIEW TOWARD LEWIS BAY April 19 BIRD’S EYE VIEW OF ‘MARSH MEANDER’ BOARDWALK TRAIL April 20 ‘MARSH MEANDER’ BOARDWALK VIEW NORTHWEST April 21 TYPICAL OVERLOOK ALONG ACCESSIBLE OUTER LOOP TRAIL April 22 TYPICAL LOOP TRAIL SECTION & ABUTTER BUFFER 1 2 3 4 5 6 7 8 9 10 11 12 EXISTING VEGETATED SLOPES TO REMAIN RESTORED HUMMOCK HOLLOW WETLANDS ACCESSIBLE LOOP TRAIL APPROXIMATE PROPERTY BOUNDARY ADJACENT NEIGHBORHOOD HOMES April 23 TERRACED THERAPEUTIC LANDSCAPE Restored Hummock Hollow Wetlands Enhanced/Naturalized Pond Habitats Restored Deep Marsh Boardwalk Crossing Accessible Outer Loop Trail Picnic Tables Nature Play Bayview Bogs Welcome Plaza Terraced Reflection Nooks Accessible Wetland Walking Loop Accessible Upland Walking Loop Reconfigured CCHC Parking 1 2 3 4 5 6 7 8 9 10 11 12 1 4 4 5 6 11 BAYVIEW STREET CAPE COD HOSPITAL VIRGINA STREET April 24 VIEW OF RESTORED BOG FROM UPLAND OVERLOOK April 25 BIRD’S EYE VIEW SOUTHEAST FROM WELCOME PLAZA April 26 Ecological Restoration NOI: Tidal Restoration Project Type | 27 Fully removing the berm and water control structure Extending tidal creek into former cranberry bog cell Present-day MHHW at Lewis Bay = elev. 2.96 Low-slope marsh migration transition zone up-gradient of existing berm tapers to 3.0  anticipated max extent of present-day tides Pedestrian boardwalk crossing set at elev. 5.0 Edited 3/11/2024 27 Elimination of Tidal Restriction 28 Boardwalk Crossing over Tidal Creek 29 Freshwater Wetland Restoration | 30 ~47 acres of wetland restoration Removal of former agricultural infrastructure Remove irrigation, berms, water controls Eliminate ditches Naturalize pond edges Diffuse flow path connections to restore hydrology Reconnect southeast bogs to main wetland complex Reintroduced complexity and ecosystem diversity Surface roughening Excavation for diverse wetland habitats Enhanced turtle nesting habitat Edited 3/11/2024 30 WPA Resource Area Summary | 31 Conservative Estimates (no work explicitly planned in these resources) Edited 3/11/2024 31 Buffer Zone Impacts Waiver Request | 32 Overall project will result in significant ecological uplift to 90+ acres of wetland and upland Buffer zone impacts associated with Therapeutic Landscape Area in 35-foot zone = 0.27 acres max. (potentially impervious) or 0.37 acres total with pervious boardwalks Buffer zone impacts in 35 to 50-foot zone total 0.13 acres Highly degraded existing conditions in buffer zone Dense invasive vegetation Buffer to resource area transition is non-natural Connectivity into the site necessitates activity within the 35-foot buffer zone Proposed impacts are key to the intent of the Therapeutic Landscape Area and providing genuine all-persons, ADA-accessible access to the restored site Edited 3/11/2024 32 Buffer Zone Impacts Waiver Request | 33 Edited 3/11/2024 33 Buffer Zone Impacts Waiver Request | 34 86% of 35’ BZ impacts Edited 3/11/2024 34 35 Foot Buffer Zone | 35 Trails from Bayview Street to Therapeutic Landscape Area and interior of site must, by necessity, go through 35’ BZ. Hardened Surfaces Pervious Surfaces Boardwalks are a necessity to maintain connectivity where existing trail/berm is being removed and are a substantive improvement over existing conditions Outer accessible trail and seating area allows persons of all abilities to engage with the restored wetlands up-close Critical to Hospital’s vision and mission for the Therapeutic Landscape Area Existing conditions are steep/sharp transitions with dense invasive vegetation Boardwalk and overlooks offer seating for reflection and access to therapeutic benefits of nature Edited 3/11/2024 35 35 Foot Buffer Zone (Pt 2) | 36 Hardened Surfaces Much of existing trail at pond located within 35’ BZ. Can be relocated to 50’ BZ, with higher overall impact. Edited 3/11/2024 36 35-50 Foot Buffer Zone | 37 Trails from Bayview Street to Therapeutic Landscape Area and interior of site must, by necessity, go through 35’ to 50’ BZ. Trail connections through 35 to 50’ BZ are critical to connect to outer loop ADA trail and seating areas Critical to Hospital’s vision and mission for the Therapeutic Landscape Area Hardened Surfaces Edited 3/11/2024 37 35-50 Foot Buffer Zone (Pt 2) | 38 Hardened Surfaces Portions of existing trail are located within 35’-50’ BZ. Edited 3/11/2024 38 Julianne Busa 413.333.5469 Julianne.busa@fando.com www.fando.com Questions? 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 MULTI-LENGTH WALKING LOOPS ROUND TRIP OPTIONS FROM CCH ¼ MILE SHORT LOOP 1.6 MILE FULL LOOP ACCESSIBLE TRAILS CONNECT TO/BETWEEN NEIGHBORHOODS Bayview Bogs Restoration April 60 HYANNIS CONNECTIVITY PROMOTE WALKING ACCESS Bayview Bogs MAIN STREET April 61 TYPICAL BOARDWALK SECTION THROUGH WETLANDS 1 2 3 4 5 6 7 8 9 10 11 12 ELEVATED ACCESSIBLE BOARDWALK ON HELICAL PIERS POTENTIAL HIGH WATER LEVEL RESTORED HUMMOCK HOLLOW WETLANDS April 62 63