Spy Pond Edge & Erosion Control 30% DesignTown of Arlington November 14, 2017
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Agenda1. Introductions
2. Project Schedule
3. Project Goals
4. Key Plan
5. Restoration Strategy and Zones
6. Existing Conditions and Proposed Design• Spy Pond Park• Scannell Field• Boys and Girls Club• Spring Valley Street
6. Your Questions and Comments
Tonight’s Agenda
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Project Team
Spy Pond Project Team:
Town of Arlington Working Group:
Lela Shepherd, Conservation Agent, [email protected]
Bill Copithorne, Assistant Town Engineer, [email protected]
Jon Marshall, Director of Recreation, [email protected]
Cathy Garnett, Conservation Commission
Leslie Mayer, Park and Recreation Commission
Don Vitters, Park and Recreation Commission
Karen L. Grossman, Friends of Spy Pond Park
Hatch Chester:Duke Bitsko, Principal‐in‐Charge, [email protected]
Hilary Holmes, Project Manager, [email protected]
Ginna Johnson, Landscape Architect, [email protected]
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Project Schedule
Tonight’s MeetingNovember 14, 2017
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Project Goals
Phase 1 (2016)1. Existing Shoreline Categorization Report2. Public Meetings3. Working Group Meetings4. Preferred Concept Plans5. CPA Funding Approved for Design and Construction
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Project Goals
Phase 2Site Evaluation1. Resource Area Delineation
– Bank, BVW2. Botanical Survey
– Engelmann’s Umbrella Sedge3. Invasive Species Identification4. Updated Existing Conditions Plan
Working Group Meeting1. Review Site Evaluation2. Revised Design Concepts for Access at Spy Pond, Scannell
Field, Boys & Girls Club, and Spring Valley Street
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Project Goals
Project Goals1. Preserve, stabilize & strengthen the pond’s banks2. Control bank erosion 3. Protect & enhance wildlife habitat 4. Control access to prevent unauthorized paths5. Encourage commitment from constituency groups6. Increase quality of water & opportunity for water use7. Promote stormwater infiltration along the shoreline8. Implement environmental education
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Location Plan
BOYS AND GIRLS CLUB
SPRINGVALLEY STREET
SPY POND PARK
SCANNELL FIELD
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Restoration Strategy
Invasive RemovalsSoil and Planting Restoration:
• Zone 1: Shoreline Stabilization• Zone 2: Bordering Vegetated Wetland Enhancement Planting• Zone 3: Riparian Buffer Zone Enhancement Planting• Zone 4: Riparian Woodland Enhancement Planting
FencingSignage
Restoration Strategy
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Invasive Plant Management Strategy1. Coordinate Conservation Commission approval for removal method and
species.2. Woody Trees, Shrubs and Vines:
• Saplings (up to 1”) – mechanical removal with Weed Wrench• Mature Plants ‐ cut flush to ground and dispose legally off‐site
(landfill).• Suckering Varieties – cut flush and apply approved herbicide.*
3. Herbaceous Plants:• Pull plants and roots by hand and dispose legally off‐site (landfill).• Seed and stabilize with native mix appropriate for plant community.
4. Japanese Knotweed Colonies (Manual vs. Chemical Method):• Cut stems to ground twice/year and dispose legally off‐site (3‐7 years).• Cut stem herbicide treatment once/year (repeat second year).
5. Establish native plant communities.6. Monitor and manage all removal areas for 3 years (minimum).* Requires Licensed MA applicator
Restoration Strategy: Invasive Species
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 1: Shoreline Stabilization
Restoration Strategy: Zone 1
1. Install turbidity curtain2. Install coir fascines3. Place soil and regrade behind coir fascines4. Install planting
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 1: Shoreline Stabilization
4 Treatments:
Restoration Strategy: Zone 1
1. 2. 3.
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 1: Shoreline Stabilization
Restoration Strategy: Zone 1
1. 2. 3.
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 2: Bordering Vegetated Wetland Enhancement Planting
Restoration Strategy: Zone 2
1. Protect resource and endangered species habitat2. Remove targeted invasives3. Scarify compacted areas (footpaths)4. Top‐dress with weed‐free topsoil5. Install seed and tackifier6. Install plugs and live stakes in hydric soils
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 2: Bordering Vegetated Wetland Enhancement Planting
Restoration Strategy: Zone 2
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 3: Riparian Buffer Zone Enhancement Planting
Restoration Strategy: Zone 3
1. Remove invasives2. Scarify compacted areas (footpaths)3. Top dress with weed‐free topsoil4. Install seed and tackifier5. Install plugs 6. In coordination with Working Group, install live stakes
in groups to frame views & improve habitat.
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 3: Riparian Buffer Zone Enhancement Planting
Restoration Strategy: Zone 3
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 4: Riparian Woodland Enhancement Planting
Restoration Strategy: Zone 4
1. Remove invasives2. Scarify compacted areas (footpaths)3. Top dress with weed‐free topsoil4. Install seed and tackifier5. Install native woodland groundcovers 6. Install live stakes to improve habitat7. Install tree tubelings to restore understory & canopy
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Zone 4: Riparian Woodland Enhancement Planting
Restoration Strategy: Zone 4
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Restoration Strategy: Fencing
North Beach Access Point
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Goose Exclusion Fence Establishment Fence
Restoration Strategy: Fencing
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Restoration Strategy: Signage
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Existing Conditions
Spy Pond Park‐North
A.A. Reznicek
Boat Ramp
North Beach
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Invasive Species
Invasive Species
Japanese knotweed colony
Spy Pond Park North
Ailanthus volunteers
3 to 8” DBH = 9>8 to 20” DBH = 1
>20” DBH = 0Total 10
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Existing Conditions
Spy Pond Park‐South
South Beach
Invasive Species:3 to 8” DBH = 0
>8 to 20” DBH = 0>20” DBH = 0
Total 0
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Existing Conditions
Scannell Field
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Scannell FieldInvasive Species
oriental bittersweet at shoreline oriental bittersweet canopy Norway maple
Invasive Species
3 to 8” DBH = 19>8 to 20” DBH = 7
>20” DBH = 2Total 28
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spy Pond Park‐North
Proposed Design
Boat Ramp
North Beach
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spy Pond Park‐North
Proposed Design
Detail at Boat Ramp
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spy Pond Park‐South
Proposed Design
South BeachProposed Water Access
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spy Pond Park‐South
Proposed Design
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Scannell Field
Proposed Design
Bioretention Basin
Water Access
OverlookIce House Interpretation
Loop PathL.O.W. this Phase
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Scannell Field
Proposed Design
Biorentention Basin
Water Access OverlookPorous Path
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Scannell Field
Proposed Design
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Scannell Field
Proposed Design
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Boys and Girls Club
Existing Conditions
Existing Footpath
Boys and Girls ClubExisting Parking
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Invasive SpeciesBoys and Girls Club
oriental bittersweet sycamore maple & Norway maple
Invasive Species
3 to 8” DBH = 16>8 to 20” DBH = 7
>20” DBH = 1Total 24
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Boys and Girls Club
Proposed Design
Loop Path
Boys and Girls Club
Loop Path
Upland Meadow
Guardrail withLawn Edge
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Boys and Girls Club
Proposed Design
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Boys and Girls Club
Proposed Design
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spring Valley Street
Existing Conditions
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Invasive SpeciesSpring Valley Street
Ailanthus, multiflora rose, Euonymus sycamore maple, Norway maple, Ailanthus
Invasive Species
3 to 8” DBH = 8>8 to 20” DBH = 5
>20” DBH = 0Total 13
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington
Spring Valley Street
Proposed Design
Upland MeadowBioretention Basin
PathCanoe Storage
Boulder Boat Launch
Woodland Restoration
Spy Pond Edge & Erosion Control 30% DesignTown of Arlington Your Vision for Spy Pond