Calahan Park Comprehensive Plan by BTVParks

CALAHAN PARK CALAHAN PARK COMPREHENSIVE PLAN

COMPREHENSIVE PLAN

Horsley Witten Group

Sustainable Environmental Solutions

Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

Landscape Architecture Civil Engineering Sustainable Site Design Green Infrastructure Stormwater & Wastewater Management Smart Growth/Low Impact Development Meeting Facilitation Training Construction Administration Surveying

Professional Registrations Professional Engineer, RI #8776 (2006)

T CUS

STR

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Registered Landscape Architect MA #1592 (2006) RI #372 (2003) LEED AP

Academic Background

Bachelor of Science, Civil / Environmental Engineering Worcester Polytechnic Institute, 1993 Bachelor of Landscape Architecture, University of Rhode Island, 2001 Professional Experience Horsley Witten Group, Inc., Project Manager and Senior Landscape Architect/Civil Engineer, 2007-Present Northeast Engineers and Consultants, Inc., Project Manager/ Senior Landscape Architect, 2006-2007 University of Rhode Island, Adjunct Professor, 2002-2007 Frisella Engineering, Inc., Project Manager, 2003-2006 William Warner Architects and Planners LTD, Landscape Architect, 2001-2003 City of Newport, Rhode Island, Planning Department Intern, 2000-2001

Brian has 20 years of experience in the combined fields of landscape architecture and civil engineering. Brian’s passion for the preservation of the natural environment provides the foundation for all his design work. He has collaborated with the EPA on the development a handbook for urban GI and stormwater retrofits as part of the EPA’s Green Infrastructure Municipal Handbook Series. Brian has presented at numerous training workshops and conferences and served as an adjunct professor in the Landscape Architecture Department at the University of Rhode Island. KEY PROJECTS

Ten Mile River Restoration, Attleboro, MA: Senior Landscape Architect for an urban river restoration, bank stabilization and urban river walk redevelopment project. The design includes a tree-lined corridor created along the edge of a proposed paved multi-use path, which will provide areas for both active and passive recreation. Cocheco Waterfront Development, Dover, New Hampshire: Senior Engineer and Landscape Architect for the conceptual design and vision plan for water front development. Assisted with the development of green infrastructure strategies and shoreline design into the open space plan to address climate change and sea level rise. Boston Parks and Recreation Department (BPRD), Green Infrastructure (GI) Design and Implementation Guide, Boston, MA: Project Manager for the development of a comprehensive GI design guide. The document outlines BPRD GI goals and objectives and serves as a design tool to assist with implementation GI within the Boston park. Boston Water and Sewer Commission (BWSC) Green Infrastructure Retrofits at Boston Public Schools, Boston, MA: Senior Landscape architect and lead designer for the design of innovative GI practices constructed at five existing Boston public schools. The GI practices will serve as demonstrations for future redevelopment and stormwater improvements at Boston public schools (BPS) throughout the city. Henderson Boathouse Parking Lot Retrofit, Northeastern University, Boston, MA: Senior Landscape Architect/Project Manager for a multidiscipline team hired by the University to redesign the parking area and building entrance space for the Henderson Boathouse. The design team is exploring opportunities to incorporate GI practices into the overall design. Veterans Memorial Park Design, Downtown Peabody, MA: Project Manager for the design for a brownfield redevelopment project including site remediation of contaminated soil, wetland mitigation, and site and landscape design. The park is designed to provide flood storage during large rain events.

SHELBUR

PINE STREET

NE ROAD

NES, Inc., Site Engineer, 1993-1998

CHERRY LANE

Prepared for: City of Burlington, Department of Parks, Recreation and Waterfront Report By: Offshoots, Inc. April 1, 2022

Horsley Witten Group

Sustainable Environmental Solutions

Calahan Park, 1978. Source: Vermont Center for Geographic Information

Calahan Park, 2004. Source: Vermont Center for Geographic Information

Calahan Park, 2019. Source: Vermont Center for Geographic Information NORTH

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Calahan Park Comprehensive Plan Report

Table of Contents 1

Land Acknowledgement

Final Comprehensive Plan Circulation / Entrances

2 2

Structures

Introduction Design Process

Playground

Existing Conditions Summary

Gathering Spaces

Athletic Resources Community Garden

Data Collection Methods

Site Utilities

Site History

Views

Circulation and Wayfinding

Multi-functional Spaces / Seasonal Program Expansion

Site Layout and Programming

Site Ecology- Vegetation

Structures

Site Ecology- Stormwater

Soils Drainage and Stormwater Ecology and Vegetation

Estimated Costs Early Action Items

Community Outreach

Opportunities for Collaboration

Community Questionnaire

Summary

Focus Groups Concept Menu Survey Virtual Workshops

Concept Development Goals Concept Menu

Calahan Park Comprehensive Plan Report

Implementation

Sources Appendix A – Existing Conditions Appendix B – Community Outreach Appendix C – Design Development Appendix D – Final Comprehensive Plan

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Land Acknowledgment The City of Burlington acknowledges that Calahan Park is situated on unceded traditional land of N’dakinna, the ancestral homeland of the Abenaki people. The park is steeped in rich Indigenous history. We recognize the indigenous culture and people that existed in N’dakinna long before Europeans arrived in North America, and those here today. As a City, we have and acknowledge gratitude for the Abenaki people, the stewards and caretakers of the land on which we live, play and work. We commit to policies and practices of cultural equity and inclusion at the core of our values and aim to steward the land to benefit current and future generations.

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Calahan Park Comprehensive Plan Report

Introduction / Existing Conditions Summary

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Existing Site Layout. See Appendix A for full size diagram and legend.

PROGRAMMING:CurrentExisting SiteConditions Summary

Introduction

PROGRAMMING:Current Site

Design Process

Data Collection Methods

The City of Burlington, VT, Department of Parks, Recreation and Waterfront (BPRW) hired a consulting design team in January 2021 to create a comprehensive plan for Calahan Park. This report documents the conceptual park design process led by Offshoots, with subconsultants Horsley Witten Group, Stone Environmental, and Duncan Wisniewski Architecture over an eleven-month period in collaboration with the City of Burlington, park stakeholders and the public. The comprehensive plan provides the city with a guide to update the park that meets the goals and needs of the community while also promoting the ecological enhancement of this neighborhood park.

The design team conducted a comprehensive existing conditions inventory and analysis of the site to inform the comprehensive plan process. Prior to beginning any design work, an existing conditions plan was assembled using GIS mapping data from the City of Burlington to determine parcel boundaries, topography, existing structures, and utility locations.

This report documents the design process and the robust community outreach that occurred throughout the entirety of the 11-month project, which began with a detailed site analysis and culminated in the creation of a preferred final comprehensive plan. The project, led by the BPRW planning team, included a significant amount of public outreach that informed the site analysis and programmatic recommendations documented by the design team. The initial data gathering, site assessment and outreach resulted in the generation of four concept plans presented as an à la carte menu from which the community selected desired updates. The preferences indicated by the public, through online, virtual, and on-site surveys, informed the design team in the development of a final comprehensive plan. This report will walk through each of these processes and end with a summary of the preferred comprehensive plan.

Calahan Park Comprehensive Plan Report

To gather supplemental information on the site conditions, Offshoots, Horsley Witten, Stone Environmental, and Duncan Wisniewski conducted field assessments. Through this field work, the design team was able to gather additional information on site context and connections, circulation, drainage conditions, vegetation inventory, an analysis of park functions and programming, and an inventory of the many user groups (both people and wildlife). The physical data collected during the existing conditions inventory and analysis was layered onto the data from the site history research and community outreach, to develop an understanding of the dynamics of the site, the discrete user groups, and the stakeholders’ desires.

Site History In the 1800’s, the area which is now Calahan Park, was a small undeveloped portion of a large residential estate. In 1924, this19-acre portion of the property was sold to the city for use as a public park with the agreement that a street would be added connecting Shelburne Road to Pine Street. This April 1, 2022

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Existing Conditions Summary

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Existing Site Circulation. See Appendix A for full size diagram and legend.

PROGRAMMING:Current Site

new public space, then called South Park, was created in part to be the new home of the Cathedral High and Burlington High School Baseball and Football teams. In the1980’s, the city renamed the park in dedication to C. Lyman Calahan, a resident of the Five Sister’s neighborhood, a UVM Extension Horticulturalist, and a Parks and Rec. Commissioner for 20 years. Despite changes in layout and name over the years, Calahan Park has been an important open space, athletic resource, and beloved neighborhood park for nearly a century.

Street crosswalk, a recently installed curb cut dead ends into park space with no pathway connection to the interior park path network. The Birchcliff Parkway neighborhood contains an informal community path connection which is not owned or maintained by the city; and there is no direct path connection to the park where it connects to Shelburne Road or Pine Street. This has led to informal routes being developed by park visitors down the hill from Shelburne Road, through the woodland adjacent to Feldman’s Bagels, up the steep slope from Pine Street through a hole cut in the chain link fence, and along the road at the bottom of Locust Street to access a park entrance near Bentley Field. These desire lines provide a clear indication of areas that would benefit from formalized paths and additional park signage.

CIRCULATION:Within the Park

Additional information on the history of Calahan Park can be found in Appendix A.

Circulation and Wayfinding Calahan Park has two major user groups: neighborhood visitors that walk or bike to the park and athletic groups who, if not also a part of the neighborhood group, access the park by vehicle. A diagram of existing circulation can be found in Appendix A and on the diagram above. For vehicular access, there is a main parking lot at the center of the park on Locust Street with approximately 30 parking spots and on-street parking along the south side of Locust Street, both of which are routinely filled on weekend days when sports are in season. Calahan Park currently has one large park identification sign along Locust Street facing the parking lot. The park has limited walkable formal entries and no signage for pedestrians around the perimeter of the site. There is a sidewalk connection to the park from the east on Locust Street, and crosswalks along Locust Street to access from the Five Sisters Neighborhood to the north, but no other fully formalized walking connections currently exist. At the Hayward

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Within the park, the existing circulation is made up of inconsistent paths that are largely in need of repair. There are two existing formalized paths within the park: an access road that runs north-south and passes the storage shed and courts to reach a storage area, and a walking path that runs east-west from the lowest terrace up to the existing amenity building (Snack Shack and restrooms) and parking lot. Due to the site topography and poor drainage, these existing crushed stone pathways have eroded over time and are either routinely scoured by stormwater flows or flooded with large puddles during storm events. This combination of limited routes and poor conditions has resulted in many areas of the park being inaccessible for those with mobility challenges. Two projects adjacent to Calahan Park are likely to have an impact on site access and circulation. The Shelburne Street Roundabout, under construction as of this report, will introduce crosswalks on Shelburne Road that will allow for greater pedestrian access to the park from neighborhoods to the east. The planned Champlain Parkway improvements include a Calahan Park Comprehensive Plan Report

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Existing Conditions Summary

+ Summer Camps

+ Non-Athletic School Us + Community Events + Passive Park Use

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Existing Site Layout. See Appendix A for full size diagram and legend.

PROGRAMMING:Current Site

multi-use path that will connect to Pine Street at Lake Ave, directly across from the Southeast corner of the park before running north along Pine Street. This update will create a strong bike connection to a corner of the park that currently has no formalized access to the park.

2 occasional access via the neighboring property. However, there is strong interest in expanding the community garden by adding terraced plots to the west. The expansion to the west would end before a short run of steep slope. Community questionnaire responses indicated that local families use this small steep area for sledding with toddlers. Surrounding the garden is an existing edible plant hedge.

PROGRAMMING:Current Site Uses

Site Layout and Programming Calahan Park is split into five distinct terraces, as seen in the section below, each of which has a well-developed existing program. The flat areas are primarily focused on singleuse athletic programming, but the park also has an active community garden, and a heavily used playground space. The park is used by local schools and community centers for its sports fields and to provide access to fresh air, play space, the gardening space, and science exploration in the wooded areas. 1

The furthest east portion of the site, a narrow strip of steeply sloped land that connects Shelburne Road to the first park terrace, hosts the Calahan Park community garden. The garden is currently used by 26 families and approximately 75% of gardeners walk to access their plots. Those who drive have access to three shared parking spaces in the Bonvouloir House lot which fall within the park property line. The garden has water access via two existing standpipes, two in the upper area and one in the lower area along with rain catchment on their small tool shed. There is no electrical hookup, but there is

5 West Calahan Park Comprehensive Plan Report

At the bottom of the slope from Shelburne Road, the first flat terrace runs north south across the park along the bottom of Gove Court. This area contains basketball courts, four tennis courts, a small open lawn space, and is the former location of the recently removed toddler play area (tot lot). The courts are in poor condition and are slated for future capital improvement funds. Due to their pending renovation, BPRW has allowed a winter rink to be erected on the basketball courts in recent winters. The small open space is used as a mini multi-use space or summer soccer for the youngest players and winter ice skating for the youngest skaters. In addition to athletic components, this terrace contains the access drive, storage shed, and an additional maintenance storage area, critical elements to the maintenance and functioning of the park. 3 On the next terrace to the west, at the same level as the parking lot on Locust Street, lies the large multi-use field. This field was renovated in 2004 and functions primarily

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Existing Conditions Summary

as a soccer field. The field gets heavy weekend use by Greater Burlington Girls’ Soccer throughout the summer and fall but is also used by BPRW summer camps, a local ultimate frisbee league, and as a local dog walking space. Spectators currently crowd around all edges of the field and large slope to the east, under the shade of the mature trees. In the winter months, the field is informally used as a cross-country skiing and snowshoeing track. 4 West of the multi-use field lies the playground, existing building (snack shack, restrooms) and the Little League field. The playground is in disrepair and capital funds have been allocated to remove and replace the playground in fiscal year 2022. The existing playground is centrally located and visible from many of the athletic areas. The community expressed that maintaining this line of sight is an important consideration for any playground updates made. The adjacent Little League field, used by Burlington American Little League, has not been renovated recently and needs backstop and infill repair. There is a desire to increase the field length to meet tournament regulations and to add a score board, as well as an angled backstop to prevent foul balls from trespassing into the adjacent multi-use field or playground. Spectators currently watch from along the fence line or from the slope along the multiuse field. Infill materials are housed in a narrow space between the adjacent woodland and the outfield. April 1, 2022

5 The lowest park terrace contains two baseball fields for the youngest and oldest players. S.D. Ireland Field, a 90’ diamond, is used by middle school age and older baseball players. Bentley Field, located on the northeast side of the lower terrace, is used primarily for tee ball. The entire field has had drainage issues since the park was created and although extensive drainage repair work was completed in 2008, the fields still have poor drainage and issues with standing water. Adult league baseball, including the Cardinals, have moved to other fields to avoid the seasonally poor field conditions.

Little League and multi-use fields on a Saturday in September Calahan Park Comprehensive Plan Report

Existing Conditions Summary

Existing Snack Shack / Restroom Structure

Existing BPRW Storage Shed

Structures

The shed is an important resource with electrical and water hookups that park maintenance staff rely on. The dugouts at all baseball fields as well as the storage shed on the lowest terrace are in good condition and are well used by their respective programs. Any additional structures recommended should be located in areas that can provide additional site utility features in addition to storage opportunities.

The existing Snack Shack and restroom structure is used extensively in the summer months but is uninsulated and closed during the winter. It is approximately 32’ x 50’, with 10,825 SF. The concrete foundation has settled unevenly over time; it’s possible that the footing wasn’t installed below frost. Damage to the foundation can be observed on the west side of the building through cracks evident in the concrete masonry unit wall. The wood roof trusses were not observed as part of this review. The roof was replaced in approximately 2006 with fabral metal roofing and should have approximately 15 more years before needing replacement. The building has 3 functions - restrooms (male and female, accessed from the south), concession area (accessed from the east), and sports equipment storage (accessed from the west). The existing spaces do not meet current accessibility requirements nor is there an accessible route to the building. Demolition is recommended for this structure. Correcting accessibility deficiencies would be expensive and require significant rework to existing concrete slabs as well as the existing site. Weatherizing the structure is difficult (and thus expensive). The existing finishes would generally need to be removed to insulate. Ultimately, the clearest rationale for building new in favor of renovation is the foundation failure - there simply is not a way to address this without rebuilding most of the building. Calahan Park has several other existing structures throughout the park for programming specific uses and general storage that are in good condition. The large existing shed at the bottom of Gove Street is used for BPRW storage year-round and seasonally by the athletic programs that use the park.

Calahan Park Comprehensive Plan Report

Soils The soils at Calahan Park were investigated by Stone Environmental, Inc. on July 7, 2021, when a total of 11 test holes were excavated and logged. The full soils study report can be found in Appendix A. The overall impression gained from the soil tests and related site observations is that the soils at the top of the hill, on the eastern section of the park, are generally loamier, allowing for stormwater infiltration. The area beneath the soccer fields has the most well-drained soils in the park, while the terraces to the west have clay-rich soils. This causes ponding issues on the bottom tee ball and baseball fields. Tight soils and compaction around the playground and concession building also leads to ponding. The groundwater flow generally follows surface topography from near the former tot Lot and tennis courts downslope and westerly into a gentle bowl that discharges groundwater within the patch of phragmites near the base of the steep slope and at the elevation of the baseball and tee-ball fields. While the infiltration trench installed at the base of the slope may intercept this groundwater flow, it does not appear to adequately convey groundwater to the south where it could be directed into the low area along the southern park boundary. Enhancement or improvement of the existing gravel trench, coupled with strategic subsurface drainage of

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Existing Conditions Summary

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Existing Drainage and Stormwater. See Appendix A for full size diagram and legend.

PROGRAMMING:Current Site

the ball fields to direct shallow groundwater flow from west to east into the trench and then south, could be explored as a concept for relieving the long-standing challenge of wetness in the lower ball fields.

A grass swale runs along the east and south sides of the soccer fields bringing the water downhill along the southern edge of the park. A catch basin in the southwest corner of the field helps alleviate flooding in this area by sending runoff via a pipe to the lower woodland area of the park, behind the baseball outfield. The runoff is collected in this wooded area and appears to infiltrate into the subsoils during small rain events and overtop into the large drainage ditch or ravine which runs along the southern boundary of the property during larger storms. The overflow follows through the ditch towards Pine Street, eventually collecting in the wooded depression in southwest corner of the park, along Pine Street. Water from the adjacent commercial property parking lot on Pine Street also flows into the low, wet area of the park. This wet area is drained by a culvert that connects into a separate storm sewer catch basin on Pine Street.

STORMWATER:Drainage

Drainage and Stormwater Calahan Park has limited stormwater infrastructure on site. Due to the current drainage and soils, when it rains, water collects and ponds in several of the park use areas - especially the playground and the lower ball fields. Stormwater along the northern boundary also becomes channelized as it meanders uncontrolled through the site, creating erosion issues both within the playground area and along the stone dust path. Stormwater within the park directed to the southern boundary is collected in grass swales around the tennis courts and soccer field, and the swales direct stormwater around the use areas, but often do not provide the drainage capacity needed to manage the runoff. Starting from the top of the hill by Shelburne Road and moving down to Pine Street, runoff from around the community garden and the informal entrance into the park moves downhill on a footpath along the southern edge of the park and creates a wet area above the tennis courts. Grass swales around the tennis courts direct the water around the courts to the south and west. The water from the footpath and courts overflow onto the maintenance access path that goes north-south across the park. The water from the basketball court and old tot lot runs across the north-south access road and into the swale just east of the soccer field. Ponding occurs on the dirt access path at the top of the slope above the fields and overflows down the slope towards the fields during large rain events.

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There are two recently installed rain gardens along Locust Street, one to the east of the parking lot and one to the west near the playground. Although it has an inlet pipe coming from the direction of the Locust Street drainage infrastructure, the rain garden by the playground does not appear to have water flowing to it. The stormwater in the parking lot ponds at the base of the access ramp onto the sidewalk, while less water gets into the two catch basins that flank it. The playground itself and the area of compacted soil around the existing concessions building has no formalized drainage. Stormwater ponds up within the gaga ball pit, around the playground, and on the dirt and gravel surfaces. Much of the runoff in this area flows down the stone dust path leading along the northern edge of the park parallel to Locust Street. The path is often washed out when the water flows down it, causing erosion and bringing sediment to the northwest corner of the site.

Calahan Park Comprehensive Plan Report

Existing Conditions Summary

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Existing Vegetation. See Appendix A for full size diagram and legend.

PROGRAMMING:Current Site

The bottom of the park, by Pine Street, has clay soils with little to no infiltration. The baseball and tee ball fields are consistently wet. Infiltration trenches were installed at the base of the hill along the edge of the fields, and in the northwest corner of the park to intercept runoff before reaching the fields. However, due to the poor infiltration capacity of the field soils, the fields remain wet, and it appears trenches have done little to alleviate the problem. In an effort to better manage combined sewer flows from the Pine Street Combined Sewer Overflow, the Burlington Integrated Planning team, led by Burlington Department of Public Work-Water Resources staff, identified an area on the western edge of Calahan Park, beneath the SD Ireland diamond’s outfield area, as a likely site for an underground storage tank.

very little shrub or thicket cover for wildlife, with much of the vegetation structure being lawns with large canopy trees overhead. Refer to Appendix A for a diagram of the existing vegetation on site.

ECOLOGY/VEGETATION: In the Park

A diagram of existing stormwater and drainage on site can be found in Appendix A.

The community questionnaire results provided anecdotal feedback that park visitors do not see a wide variety of animal species. Most listed responses were consistent with regional studies that show minimal species diversity with the occasional fox mixed in with the more commonly found bird species and squirrels. An existing fence, likely the original chain link fence installed in the early years of the park before the vegetation grew in, remains around the portions of the site with thick vegetation. This results in ongoing maintenance to clear vegetation out of and around the fence.

Ecology and Vegetation Calahan Park is required to have at least 85% of its space open and permeable (15% lot coverage maximum). The park is currently made up of approximately 64% mown lawn and 22% natural vegetation with an approximately 27% tree canopy cover. However, City of Burlington tree database indicates minimal species diversity among the planted areas of the park; 22% of the trees are black locusts (native to Appalachia but can overtake an area and minimize diversity), 13% are native maples (including native cultivars), and 40% are non-native species with 14% of those being crabapples. Many of these trees are mature and provide shade benefits but lack species diversity and vertical structure beneficial for wildlife. The natural areas include a more diverse mix of tree species but were observed to be predominantly mature white pines, black locusts, and cottonwoods. In addition, there is Calahan Park Comprehensive Plan Report

Existing Park Tree Inventory (does not include natural areas), Source: Burlington Tree Database April 1, 2022

Community Outreach

Community Questionnaire (188 Responses) Focus Groups (16 Attendees) Virtual Public Workshop #1 (40 Attendees) Virtual Public Workshop #2 (22 Attendees) Online Concept Survey (103 Individuals) On-site Concept Survey (25 Forms - 6 days) BPRW Additional Small Group Outreach BPRW reached spread the word about upcoming public workshops with signage in the park, postcards, and social media and front porch forum posts

Summary of outreach and community members reached throughout the planning process

Community Outreach

City employees (DPW, BPRW) to discuss park maintenance, stormwater, and transportation considerations. These groups each participated virtually in small group discussions with Offshoots early in the design process. Notes from these discussions can be found in Appendix B. The feedback from these groups built upon the site analysis and community questionnaire to provide a strong understanding of how the existing site is used, what is working and what can be improved at Calahan Park.

In addition to site analysis and data review, the design team sought to receive as much public input as possible throughout the design process. This was achieved through two surveys, small focus group discussions, on-site tabling, and three virtual workshops.

Community Questionnaire In April 2021, a digital Community Questionnaire was published to give the community a chance to weigh in on Calahan Park. Questions sought feedback on a wide variety of topics to understand who is using the park, how it is being used, what works well, and what could be improved. 188 responses were recorded giving the design team a strong understanding of how the community uses and feels about Calahan park. Most of the people who completed the survey were park neighbors (93% live within a mile) and an overwhelming number of them shared the sentiment that Calahan Park is a wonderful neighborhood resource. They also offered clear feedback for which areas could benefit most from an update: the playground, site circulation, restrooms, picnic areas/ benches, drainage and basketball courts being among the most common responses.

Focus Groups With the goal to hear from as many stakeholders as possible, BPRW gathered three focus groups to represent athletic (basketball, baseball, community rink, and soccer), academic, and garden stakeholders, as well as a fourth focus group of

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Concept Menu Survey After site analysis was completed and initial outreach conducted, the design team developed a series of four concept plans for the park. These plans were developed to be a kit-ofparts, a series of design elements that the public could pick and choose from to generate a full park comprehensive plan. Rather than having the community pick between two potential park concepts, the design team asked a series of questions relating to the public preference on optional amenities and their locations. To reach as many stakeholders as possible the menu was presented at a virtual workshop using Zoom polls to select elements, was posted as a survey online, and design team and BPRW staff performed on-site outreach. The concept menu graphics, questions, and a full summary of the survey results can be found in Appendix C. Each format used the same questions and sequence to provide comparable results across outreach methods.

Virtual Workshops BPRW hosted three public workshops to gather community feedback at key points in the design process. Due to the ongoing pandemic the workshops were held virtually over Zoom. Meeting notes from the three workshops can be Calahan Park Comprehensive Plan Report

Community Outreach

Site analysis findings were presented at the first virtual workshop

Zoom poll results during the second virtual workshop Screenshots from the second virtual workshop

Reviewing the comprehensive plan at the third workshop

10 found in Appendix B. The meetings were recorded and can be viewed on the BPRW website Calahan Park project page (https://enjoyburlington.com/calahan-park-master-plan/). The first public workshop, held on May 13th, 2021, focused on summarizing the existing conditions of the park. The design team presented findings from the Community Questionnaire along with site analysis focusing on the site history, circulation, programming, soils, stormwater management, ecology, and vegetation. Throughout the presentation the public was asked to participate through Zoom polls designed to gather additional feedback about the existing park. Following the presentation, the design team and BPRW facilitated a small group activity in breakout rooms. Each group was asked to map out on a diagram what currently works at the park, what doesn’t work, and what are the opportunities for improvements. The breakout groups presented their findings to the full workshop and the meeting wrapped up with Q&A. The second virtual workshop, held on August 5th, included a summary of the previous work presented at the first meeting, the comprehensive plan goals developed based on the feedback received to date, and a presentation of the concept menu. Throughout the concept menu portion of the presentation, the public was asked to provide feedback in real time through Zoom polls. The meeting culminated in an open Q&A session with the community, BPRW staff, and the design team. The third virtual workshop, held on December 1st, 2021, summarized the design process beginning with an overview of the community outreach and covering the planning goals and proposed comprehensive plan developed. At the end of the presentation, the public, design team and BPRW had a community feedback and Q&A session to discuss the proposed comprehensive plan. Feedback was compiled to be integrated into the final comprehensive plan.

On-site tabling for the Concept Menu Survey Calahan Park Comprehensive Plan Report

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Concept Development

Concept Development Once site analysis and initial public outreach was conducted, the design team used the information gathered to develop project goals which informed initial conceptual ideas generated through a team charrette. The four concepts developed for the menu are deeply rooted in the feedback from the public as opportunities for improvement and desired future uses for the park. These ideas were presented to the public at the second public workshop.

CONCEPT MENU

Based on community input, site analysis, and parks’ objectives, the following 10 project goals were identified to guide the design of the park: +

Improve Circulation / Entrances

Provide New Building / Restrooms

Provide New Playground

Improve/ Expand Athletic Resources

Create Gathering Spaces

Expand Community Garden

Improve Site Utilities

Preserve / Celebrate views

Improve Site Ecology & Access

Create Multi-functional Spaces/ Seasonal Program Expansion

Concept Menu The goals guided the design team in developing conceptual layouts into four plans that included the desired site updates. Instead of a traditional pair of plans for the community to vote between, these plans were developed as a kit-of-parts, or an à la carte menu, so that individual elements and their layout could be considered separate from the full site. A standardized concept menu survey was developed in order to have the community voice their thoughts on the options at the second public workshop, through an online survey, or on site while talking to BPRW and design team staff. This allowed for a robust design process to occur where the public could parse out which elements and site locations they preferred. The feedback generated provided clear results for the park comprehensive plan. The community preferred the plan layout that was most similar to the existing site layout and voiced

ATHLETIC FIELDS / COURTS / RINK

Name: Email:

BUILDING LOCATION & AMENITIES Q1

Goals

Which location do you prefer? (See locations on Plans) At Little League Field (Plan D) At Multi-Use Field (Plan A & B) At Upper Terrace (Plan C) Other (tell us more in the open comments) What amenities would you like to see included? Check all that apply Concessions Stand Year-Round Public Restrooms Open Air Covered Area / Shelter from elements Indoor Community Room Equipment / Facilities Storage Warming Hut Other (tell us more in the open comments)

Which of the following would you use? Check all that apply Picnic Area BBQ Grills Terraced Slope Seating Viewing Deck Other (tell us more in the open comments)

ICE RINK

Q10

Would you prefer a hockey rink that is refrigerated or frozen naturally? Refrigerated Natural (non-refrigerated) In addition to an event space, what off-season use would you prefer to be paired with an ice rink? Picnic Pavilion (covered rink) Splash Pad Multi-Sport Court / Lacrosse Other (tell us more in the open comments)

PUBLIC FOOD FOREST

Which layout combination do you prefer? Plan A Plan B Plan C Plan D To include pickleball on the site, would you prefer to lose tennis courts or the small multi-use field / hockey area near the bottom of Gove Court? (See locations on Plans) Take away 1 Tennis court and add 1 to 2 pickleball courts Take away 2 tennis courts and add 2 to 4 pickleball courts Keep 4 tennis courts and replace small field with 1 to 2 pickleball courts

PLAYGROUND

GATHERING SPACES & SITE AMENITIES Q3

What type of playground would you like to have? Traditional Equipment Hybrid Equipment Adventure Play/ Nature Play All of the above What playground features are you interested in having? (Check all that apply) Slides Swings Climbers Balance Tunnels Would you like to have a splash pad at Calahan Park? Yes No Other (tell us more in the open comments)

SCIENCE EXPLORATION TRAIL Q11

Would you like to have a science exploration trail in the woodland? Yes (Plan D) No No, I’d like a different type of trail! (Tell us more in the open comments)

SITE LIGHTING / UTILITIES

Horsley Witten Group

Sustainable Environmental Solutions

Would you be interested in having a Public Food Forest / How much lighting are you interested in having at the has 20 years of experience in the combined fields of landscape Q12 Foraging Trail as a resource at Calahan Park? Brian park? (Checkofall that apply) architecture and civil engineering.Q17 Brian’s passion for the preservation the natural environment provides the foundation for all his design work. He Yes the Locust Street East-West Connection has collaborated with the EPA on the development a handbookAlong for urban GI and stormwater retrofits as part of the EPA’s Green Infrastructure Municipal No Alongandall primary paths Handbook Series. Brian has presented at numerous training workshops conferences and served as an adjunct professor in the Landscape Architecture Throughout all paths in park Department at the University of Rhode Island. Brian Kuchar, KEY PROJECTS Lower ball field RLA, P.E., LEED AP Senior Landscape Architect/ Aberjona River/ Davidson Park Restoration, Winchester, MA: Senior Courts: Basketball, Tennis, Pickleball, Ice Rink Engineer Landscape Architect for a river and historic park restoration project with flooding OPEN SPACE ON LOCUST STREET Civil and sediment quality concerns related to two upstream superfund sites. The bkuchar@horsleywitten.com Nowater sitequality lighting Project includes implementation of a stream restoration to improve into the historic context of the original park design. Areas of Expertise How would you like to see this space used? (See location Landscape Architecture Ten Mile River Restoration, Attleboro, MA: Senior Landscape Architect for an Civil Engineering What Utility improvements are you interested in? urban river restoration, bank stabilization and urban river other walk redevelopment Q13 on Plans) Sustainable Site Design project. The design includes a tree-lined corridor created along the edge of a Green Infrastructure Stormwater Dog & Wastewater Management Q18 (Check all active thatandapply) proposed paved multi-use path, which will provide areas for both Off-leash fenced-in Area Smart Growth/Low Impact Development passive recreation. Facilitation Wi-Fi Picnic Grove Meeting Training Cocheco Waterfront Development, Dover, New Hampshire: Senior Construction Administration Engineer and Landscape Architect for the conceptual design and vision plan for Station Surveying Charging Maintain existing open space water front development. Assisted with the development of green infrastructure Professional Registrations strategies and shoreline design into the open space plan to address climateRefill Stations Professionalin Engineer, Water Other (tell us more the open comments) change and sea level rise. RI #8776 (2006) Registered Landscape Architect Other (tell us more in the open comments) Boston Parks and Recreation Department (BPRD), Green Infrastructure MA #1592 (2006) RI #372 (2003)

SLOPE VEGETATION

LEED AP

Academic Background

Bachelor of Science, Civil / Environmental Engineering Worcester Polytechnic Institute, 1993

(GI) Design and Implementation Guide, Boston, MA: Project Manager for the development of a comprehensive GI design guide. The document outlines BPRD GI goals and objectives and serves as a design tool to assist with implementation GI within the Boston park.

OVERALL FEEDBACK at Boston Public Schools, Boston, MA: Senior Landscape architect What type of slope vegetation andArchitecture, managementRetrofits would Bachelor of Landscape and lead designer for the design of innovative GI practices constructed at five University of Rhode Island, 2001 existing Boston public schools. The GI practices will serve as demonstrations for you prefer? (See locations on Experience Plans) Professional future redevelopment and stormwater improvements at Boston public schools Horsley Witten Group, Inc., Project Manager (BPS) throughout the city. If you had to select just one plan, which plan do you and Senior Landscape Architect/Civil Engineer, Meadow 2007-Present Henderson Boathouse Parking Lot Retrofit, Northeastern University, Q19 prefer? (tell us more in the open comments) Engineers and Consultants, Inc., Low-Mow LawnNortheast Boston, MA: Senior Landscape Architect/Project Manager for a multidiscipline Project Manager/ Senior Landscape Architect, team hired by the University to redesign the parking area and building entrance 2006-2007 PLAN A Mown lawn (current condition) space for the Henderson Boathouse. The design team is exploring opportunities University of Rhode Island, Adjunct Professor, to incorporate GI practices into the overall design. 2002-2007 PLAN B Frisella Engineering, Inc., Project Manager, Veterans Memorial Park Design, Downtown Peabody, MA: Project 2003-2006 C Manager for the design for a brownfield redevelopment projectPLAN including site William Warner Architects and Planners LTD, remediation of contaminated soil, wetland mitigation, and site and landscape Landscape Architect, 2001-2003 PLAN D design. The park is designed to provide flood storage during large rain events. FORMALIZE CONNECTIONS City of Newport, Rhode Island, Planning Boston Water and Sewer Commission (BWSC) Green Infrastructure

Q14

Department Intern, 2000-2001

Do you like the idea of a formalized network of paths? Yes, only primary paths (Locust East-West connection, North South route in park, connection to Shelburne Road) Yes, all paths (mix of paved/gravel paths) No (tell us more in the open comments NES, Inc., Site Engineer, 1993-1998

Q15

Q20

Open Comments: If you would like to provide more detail, please do so below:

PINE STREET CONNECTION Q16

How would you prefer to access the park from Pine Street? (See locations on Plans) Boardwalk through woodland Sloped path up to field Both!

For more information, or to submit your feedback virtually, please visit our website: www.enjoyburlington.com/calahan-park-master-plan

Horsley Witten Group

Sustainable Environmental Solutions

On-site concept menu flyers. The colored circles for each question correspond with the site boards and precedent imagery Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

April 1, 2022

For more information, or to submit your feedback virtually, please visit our website: www.enjoyburlington.com/calahan-park-master-plan

CALAHAN PARK MASTER PLAN

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003) LEED AP

Academic Background

KEY PROJECTS

Calahan Park Comprehensive Plan Report Cocheco Waterfront Development, Dover, New Hampshire: Senior Engineer and Landscape Architect for the conceptual design and vision plan for water front development. Assisted with the development of green infrastructure strategies and shoreline design into the open space plan to address climate change and sea level rise. Boston Parks and Recreation Department (BPRD), Green Infrastructure (GI) Design and Implementation Guide, Boston, MA: Project Manager for the development of a comprehensive GI design guide. The document outlines BPRD GI goals and objectives and serves as a design tool to assist with implementation GI within the Boston park. Boston Water and Sewer Commission (BWSC) Green Infrastructure Retrofits at Boston Public Schools, Boston, MA: Senior Landscape architect and lead designer for the design of innovative GI practices constructed at five existing Boston public schools. The GI practices will serve as demonstrations for future redevelopment and stormwater improvements at Boston public schools

Concept Development

547 rutherford ave. | charlestown, ma | 02129 p 617.500.6530 f 617.500.6531

CALAHAN PARK MASTER PLAN CONCEPT A

PROPOSED MULTI-USE BUILDING LOCATION

PLAYGROUND WITH WESTERN VIEW

PROPOSED SIDEWALK CONNECTION LOOPING PATH NETWORK EAST-WEST CONNECTION

For more information or to fill out a virtual menu survey please visit our website: www.enjoyburlington.com/calahan-park-master-plan

DOG RUN / GROVE

Q13

BASKETBALL COURTS

EXISTING SMALL FLEXIBLE USE SPACE/ RINK AREA TO REMAIN EXPANDED STORAGE AREA

Q1 SLEDDING HILL

TEE BALL FIELD

RAIN GARDEN PATH WITH WESTERN VIEW

ICE RINK / LACROSSE BOX OR MULTI-SPORT COURT

Q14 LOW-MOW LAWN ON SLOPES

CSO TANK

BURLINGTON, VERMONT

CALAHAN PARK

www.offshootsinc.com

MULTI-USE FIELD

LITTLE LEAGUE FIELD

EXPANDED GARDEN STORAGE ISSUE DATE: REVISIONS

DATE

DESCRIPTION

SD IRELAND FIELD E

Q16 LOOPING PATH NETWORK WITHIN PARK

WOODLAND PATH A

Building Location & Amenities: • Proposed multi-use building located near the multi-use fields. This building could have amenities including a snack 1 2 shack, equipment storage, year-round bathrooms, covered patio, or a community room.

REVIEWED: KLK

Conceptual Design

SLOPED PATH CONNECTION STEPS

July 12, 2021

547 rutherford ave. | charlestown, ma | 02129 p 617.500.6530 f 617.500.6531

www.offshootsinc.com CONCEPT A2 SHEET NUMBER

Athletic Program: • The baseball fields all remain in their existing locations. • The basketball courts are3 moved next to the little league field to create a more central location and allow more room for the ice rink at the upper terrace. • The existing small flexible-use space and rink area remains. • A proposed larger multi-use court and ice rink is added near the bottom of Gove Court. This multi-use space could be used for different programming throughout the year. • One tennis court is removed to create room for two new pickleball courts.

L-A2

Slope Vegetation: • The existing lawns on the sloped areas between the terraces are converted to a low-mow lawn to reduce the 6 amount of maintenance required and support pollinator species through increased biodiversity.

Circulation / Connections: 0 120' 30' 60' NORTH • A sidewalk is added on the south side of Locust Street to 1"=60' add safe access into the park from Pine8 Street. 7 9 • A pathway is provided within the park to create a continuously paved east-west connection along Locust Street. • The existing paths and connections throughout the park are Stormwater / Drainage: formalized to create a looping path network. For more information or to fill out a virtual • The lower fields are renovated to drain to a constructed wet- • An entrance is added to connect the southwest corner menu of survey please visit our website: land on the southwest corner of the site along Pine Street. the park to Pine Street via a sloped walkway up to the lower www.enjoyburlington.com/calahan-park-master-plan Horsley Witten Group Sustainable Environmental Solutions • A rain garden is proposed along the south side of Gove fields. Brian has 20 years of experience in the combined fields of landscape Court to provide on-site stormwater capture. • Steps and a sloped path are added to connect the middle architecture and civil engineering. Brian’s passion for the preservation of the natural environment provides the foundation for all his design work. He DOG RUN / GROVE has collaborated with the EPA on the development a handbook for urban GI and upper terrace. and stormwater retrofits as part of the EPA’s Green Infrastructure Municipal

CALAHAN PARK MASTER PLAN CONCEPT B

Gathering Spaces & Site Amenities • The existing community garden is expanded to provide additional plots, an informal gathering space, and a storage area.

DRAWN: SCH

PARK ENTRANCE FROM SHELBURNE ROAD

SLOPED ENTRANCE FROM PINE STREET

Program Elements: Concept Menu - Plan Concept A

Open Space on Locust Street: • A fenced in dog run is added within the existing grove of trees.

PROPOSED MULTI-USE BUILDING LOCATION

PLAYGROUND WITH WESTERN VIEW RINK AND MULTI-USE SPACE

PROPOSED SIDEWALK CONNECTION LOOPING PATH NETWORK EAST-WEST CONNECTION

• A path is added to connect to Shelburne Road.

Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

Q13

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003) LEED AP

Academic Background

RAIN GARDEN LOW-MOW LAWN ON SLOPES

EXISTING STORAGE TO REMAIN

University of Rhode Island, Adjunct Professor, 2002-2007 Frisella Engineering, Inc., Project Manager, 2003-2006 William Warner Architects and Planners LTD, Landscape Architect, 2001-2003 City of Newport, Rhode Island, Planning Department Intern, 2000-2001

CALAHAN PARK

CONSTRUCTED WETLAND

(3) TENNIS COURTS (2) PICKLEBALL COURTS

Handbook Series. Brian has presented at numerous training workshops and conferences and served as an adjunct professor in the Landscape Architecture Department at the University of Rhode Island. KEY PROJECTS

Aberjona River/ Davidson Park Restoration, Winchester, MA: Senior Landscape Architect for a river and historic park restoration project with flooding and sediment quality concerns related to two upstream superfund sites. The Project includes implementation of a stream restoration to improve water quality into the historic context of the original park design. Ten Mile River Restoration, Attleboro, MA: Senior Landscape Architect for an urban river restoration, bank stabilization and urban river walk redevelopment project. The design includes a tree-lined corridor created along the edge of a proposed paved multi-use path, which will provide areas for both active and passive recreation. Cocheco Waterfront Development, Dover, New Hampshire: Senior Engineer and Landscape Architect for the conceptual design and vision plan for water front development. Assisted with the development of green infrastructure strategies and shoreline design into the open space plan to address climate change and sea level rise.

BURLINGTON, VERMONT

Boston Parks and Recreation Department (BPRD), Green Infrastructure (GI) Design and Implementation Guide, Boston, MA: Project Manager for the development of a comprehensive GI design guide. The document outlines BPRD GI goals and objectives and serves as a design tool to assist with implementation GI within the Boston park. Boston Water and Sewer Commission (BWSC) Green Infrastructure Retrofits at Boston Public Schools, Boston, MA: Senior Landscape architect and lead designer for the design of innovative GI practices constructed at five existing Boston public schools. The GI practices will serve as demonstrations for future redevelopment and stormwater improvements at Boston public schools (BPS) throughout the city. Henderson Boathouse Parking Lot Retrofit, Northeastern University, Boston, MA: Senior Landscape Architect/Project Manager for a multidiscipline team hired by the University to redesign the parking area and building entrance space for the Henderson Boathouse. The design team is exploring opportunities to incorporate GI practices into the overall design. Veterans Memorial Park Design, Downtown Peabody, MA: Project Manager for the design for a brownfield redevelopment project including site remediation of contaminated soil, wetland mitigation, and site and landscape design. The park is designed to provide flood storage during large rain events.

NES, Inc., Site Engineer, 1993-1998

TEE BALL FIELD

SLEDDING HILL

EXPANDED GARDEN STORAGE

MULTI-USE FIELD

Q14

CSO TANK

(3) TENNIS COURTS (1) PICKLEBALL COURTS

ISSUE DATE: REVISIONS

DATE

DESCRIPTION

SD IRELAND FIELD E

Q15

Q16

CONSTRUCTED WETLAND F

SLOPED ENTRANCE FROM PINE STREET

WOODLAND PATH BUILT-IN SEATING AREA

Program Elements: Concept Menu - Plan Concept B Building Location & Amenities: • Proposed multi-use building located near the multi-use fields. This building could have amenities including a snack 1 2 shack, equipment storage, year-round bathrooms, covered patio, or a community room.

Gathering Spaces & Site Amenities • The existing community garden is expanded to provide additional plots, an informal gathering space, and a storage area. • Built-In terrace seating is added at S.D. Ireland Field.

Athletic Program: • The Little League field shifts to the upper terrace creating room for additional programming in the center of the park. 3 • The basketball courts and ice rink are centrally located in the center of the park, to reduce noise concerns. • The proposed ice rink will be a multi-use space that could be used for different programming throughout the year. Optional uses include a multi-sport court, splash pad, event space, or box lacrosse. • One tennis court is removed to create room for two new pickleball courts and the courts are shifted next to Gove Ct.

Calahan Park Comprehensive Plan Report

LOOPED PATH NETWORK BASKETBALL COURTS

DRAWN: SCH

LITTLE LEAGUE STORAGE AREA

REVIEWED: KLK

Conceptual Design

PARK ENTRANCE FROM SHELBURNE ROAD

STEPS July 12, 2021

NATURE PLAY AREA WITHIN WOODLAND

CONCEPT A2 SHEET NUMBER

Playground: • The new playground shifts to the top of the sledding hill with 5 a4 path separating it from Locust Street. • In this location the playground can be incorporated into the slope of the sledding hill and has ample shade from existing trees. • The playground extends into the wooded area to create a natural play area adjacent to the main play space. Open Space on Locust Street: • A fenced in dog run is added within the existing grove of trees.

Circulation / Connections: • A sidewalk is added on the south side of Locust Street to add safe access into the park from Pine8 Street. 7 • A pathway is provided within the park to create a continuously paved east-west connection along Locust St. • The existing paths and connections throughout the park are Stormwater / Drainage: formalized to create a looping path network. • The lower fields are renovated to drain to a constructed • An entrance is added to connect the southwest corner of wetland on the southwest corner of the site along Pine the park to Pine Street via a sloped walkway up to the lower Street. fields. • A rain garden is proposed within the park to the northwest of • The informal paths through woodland are formalized. the end of Gove Ct. to provide on-site stormwater capture, • Steps are added to connect the middle and upper terrace. eliminating the current small multi-use field/rink . • A path is added to connect to Shelburne Road. Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003) LEED AP

Academic Background

Bachelor of Science, Civil / Environmental Engineering Worcester Polytechnic Institute, 1993 Bachelor of Landscape Architecture, University of Rhode Island, 2001

NORTH

0 30' 1"=60'

60'

120'

Horsley Witten Group

Sustainable Environmental Solutions

April 1, 2022

KEY PROJECTS

L-A2

Concept Development

547 rutherford ave. | charlestown, ma | 02129 p 617.500.6530 f 617.500.6531

CALAHAN PARK MASTER PLAN CONCEPT C

For more information or to fill out a virtual menu survey please visit our website: www.enjoyburlington.com/calahan-park-master-plan

PICNIC AREA / TREE GROVE

STORAGE AREA PROPOSED SIDEWALK CONNECTION LOOPING PATH NETWORK EAST-WEST CONNECTION

PLAYGROUND WITH WESTERN VIEW

EXISTING OPEN SPACE TO REMAIN

Q13

BURLINGTON, VERMONT

CALAHAN PARK

www.offshootsinc.com

(1) PICKLEBALL COURT RENOVATE BOTTOM OF GOVE COURT INTO RAIN GARDEN PROPOSED STORAGE AREA AND PUBLIC RESTROOMS ATTACHED TO PAVILION OPEN PAVILION / RINK WITH VIEW BASKETBALL COURTS EXPANDED GARDEN STORAGE

SLEDDING HILL

Q14 CSO TANK

MEADOW ON SLOPES

MULTI-USE FIELD

ISSUE DATE: REVISIONS

LITTLE LEAGUE

Q12

Program Elements: Concept Menu - Plan Concept C

Q15

PAVED PATH AROUND FIELD AS PART OF LOOPED PATH NETWORK

(4) TENNIS COURTS STORAGE

DRAWN: SCH

FORAGING TRAIL

PATH WITH VIEW

PARK ENTRANCE FROM SHELBURNE ROAD

July 12, 2021

547 rutherford ave. | charlestown, ma | 02129 p 617.500.6530 f 617.500.6531

www.offshootsinc.com CONCEPT A2 SHEET NUMBER

Athletic Program: • The baseball fields all remain in their existing locations. • The basketball courts shift 3 east of their existing location and would have a retaining wall along the east side, acting as a natural sound barrier and seating element. • The ice rink is located within the open pavilion. • All four tennis court are renovated in their existing location. • One pickleball courts is added northwest of Gove Ct.

Playground: • The new playground shifts south to a large space at the top 5 of 4 the sledding hill with a path separating it from Locust St. • In this location the playground can be incorporated into the slope of the sledding hill and has ample shade from existing trees. • The playground is adjacent to the restrooms. • The woodland trail includes nature play / science exploration.

L-A2

Slope Vegetation: • The existing lawns on the sloped areas between the terraces are converted to a native meadow to reduce the 6 amount of maintenance required, support pollinator species through increased biodiversity, and provide additional wildlife habitat and food sources in the park.

Circulation / Connections: 0 120' 30' 60' NORTH • A sidewalk is added on the south side of Locust Street to 1"=60' add safe access into the park from Pine8 Street. 7 9 • A pathway is provided within the park to create a continuously paved east-west connection along Locust street. • The existing paths and connections throughout the park are formalized to create a looping path network. For more information or to fill out a virtual Stormwater / Drainage: • An entrance is added to connect the southwest corner menu of the survey please visit our website: • The lower fields are renovated to drain to a constructed wetpark to Pine Street via a boardwalk through the wetland. www.enjoyburlington.com/calahan-park-master-plan Horsley Witten Group Sustainable Environmental Solutions land on the southwest corner of the site along Pine Street. • A path is added to connect to Shelburne Road and act as a Brian has 20 years of experience in the combined fields of landscape • A rain garden is proposed to replace the portion of paving foraging trail alongside edible plantings. and civil engineering. Brian’s passion for the preservation of the natural environment provides the foundation for all his design work. He EXISTING OPEN SPACE architecture has collaborated with the EPA on the development a handbook for urban GI beyond the last driveway at Gove Court, to provide on-site • The woodland path is formalized into an exploration trail. and stormwater retrofits as part of the EPA’s Green Infrastructure Municipal Handbook Series. Brian has presented at numerous training workshops and conferences and served as an adjunct professor in the Landscape Architecture TO REMAIN stormwater capture. Sidewalk access would remain. Department at the University of Rhode Island.

CALAHAN PARK MASTER PLAN CONCEPT D

Open Space on Locust Street: • The open space along Locust Street is updated to become an informal picnic area.

STORAGE AREA

PLAYGROUND WITH WESTERN VIEW

Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com

PROPOSED MULTI-USE BUILDING LOCATION

PROPOSED SIDEWALK CONNECTION LOOPING PATH NETWORK EAST-WEST CONNECTION

Areas of Expertise

Q13

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003)

(2) PICKLEBALL COURTS

PICNIC GROVE

LEED AP

Academic Background

SLEDDING HILL

TEE BALL FIELD

REVIEWED: KLK

Conceptual Design

RAIN GARDEN

William Warner Architects and Planners LTD, Landscape Architect, 2001-2003

City of Newport, Rhode Island, Planning Department Intern, 2000-2001

CALAHAN PARK

Building Location & Amenities: • Proposed open pavilion on the upper terrace. • Pavilion space is multi-use with potential for events, picnic 1 2 space, and winter hockey. • An enclosure on the north side of the pavilion could include the snack shack, some equipment storage, and year-round bathrooms.

Q11 SCIENCE EXPLORATION TRAIL

BOARDWALK ENTRANCE FROM PINE STREET CONSTRUCTED WETLAND

DESCRIPTION

SD IRELAND FIELD E

Q16

DATE

KEY PROJECTS

BURLINGTON, VERMONT

TEE BALL FIELD

BASKETBALL COURTS NES, Inc., Site Engineer, 1993-1998

HOCKEY / MULTI-USE COURT

EXPANDED GARDEN

Q14 CSO TANK

MEADOW ON SLOPES

STORAGE

MULTI-USE FIELD

ISSUE DATE: REVISIONS

LITTLE LEAGUE

DATE

DESCRIPTION

SD IRELAND FIELD E

Q11

Q16

DRAWN: SCH

Q15 (4) TENNIS COURTS

BOARDWALK ENTRANCE FROM PINE STREET CONSTRUCTED WETLAND

Program Elements: Concept Menu - Plan Concept D Building Location & Amenities: • Proposed multi-use building located north of the Little League field. This building could have amenities 2including 1 a snack shack, equipment storage, year-round bathrooms, covered patio, or a community room.

Gathering Spaces & Site Amenities • The existing community garden is expanded to provide additional plots, an informal gathering space, and a storage area. A public foraging trail is added to the south. • A viewing deck is added at the upper terrace. • A picnic area is created in the existing grove of trees north of the multi-use field.

April 1, 2022

Athletic Program: • The baseball fields all remain in their existing locations. • The basketball courts are3 renovated in their existing location. • A proposed small ice rink is added east of the basketball courts. This rink would function as a multi-use space and have additional uses throughout the year such as a multisport court. • All four tennis court are renovated in their existing location. • Two pickleball courts are added northwest of Gove Ct.

SCIENCE EXPLORATION TRAIL WITH BOARDWALK IN WET AREAS

PAVED PATH AROUND FIELD AS PART OF LOOPED PATH NETWORK

STORAGE

FORAGING TRAIL

REVIEWED: KLK

Conceptual Design

PARK ENTRANCE FROM SHELBURNE ROAD

July 12, 2021

VIEWING DECK

CONCEPT A2 SHEET NUMBER

Circulation / Connections: • A sidewalk is added on the south side of Locust Street to add safe access into the park from Pine8 Street. 7 • A pathway is provided within the park to create a continuously paved east-west connection along Locust street. • The existing paths and connections throughout the park are formalized to create a looping path network. Stormwater / Drainage: • An entrance is added to connect the southwest corner of the • The lower fields are renovated to drain to a constructed wetpark to Pine Street via a boardwalk through the wetland. land on the southwest corner of the site along Pine Street. • A path is added to connect to Shelburne Road and act as a • A rain garden is proposed at the bottom of Gove Court to foraging trail alongside edible plantings. provide on-site stormwater capture. • The woodland path is formalized into an exploration trail.

NORTH

0 30' 1"=60'

60'

120'

Horsley Witten Group

Sustainable Environmental Solutions

Calahan Park Comprehensive Plan Report Brian Kuchar, RLA, P.E., LEED AP

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003) LEED AP

Academic Background

Bachelor of Science, Civil / Environmental Engineering Worcester Polytechnic Institute, 1993 Bachelor of Landscape Architecture, University of Rhode Island, 2001

KEY PROJECTS

L-A2

Concept Development

CALAHAN PARK MASTER PLAN - PRECEDENT IMAGES

Horsley Witten Group

Senior Landscape Architect/ Civil Engineer bkuchar@horsleywitten.com Areas of Expertise

Foraging Trail - Public Forest

Site Amenities & Gathering Spaces

Professional Registrations Professional Engineer, RI #8776 (2006)

Registered Landscape Architect MA #1592 (2006) RI #372 (2003)

Q12

LEED AP

Academic Background

B. Low-Mow Lawn

A. Meadow

B. Natural (non-refrigerated) Rink

William Warner Architects and Planners LTD, Landscape Architect, 2001-2003 City of Newport, Rhode Island, Planning Department Intern, 2000-2001

Q14

Plan A

Henderson Boathouse Parking Lot Retrofit, Northeastern University, Boston, MA: Senior Landscape Architect/Project Manager for a multidiscipline team hired by the University to redesign the parking area and building entrance space for the Henderson Boathouse. The design team is exploring opportunities to incorporate GI practices into the overall design. Veterans Memorial Park Design, Downtown Peabody, MA: Project Manager for the design for a brownfield redevelopment project including site remediation of contaminated soil, wetland mitigation, and site and landscape design. The park is designed to provide flood storage during large rain events.

Q15

C. Adventure / Nature

that the objective should be a site update rather than a site overhaul. The survey results found that the desired updates include providing: Plan B

Plan D

a formalized path network

a new building near the existing one and continue to provide a space for the snack shack

additional site amenities like year-round restrooms, storage, and Wi-Fi

a new hybrid playground that includes a mix of natural and traditional play elements

an open-air covered area

a picnic area

a dedicated ice rink space

Plan C

ELDS: TION DO YOU PREFER?

Boston Water and Sewer Commission (BWSC) Green Infrastructure Retrofits at Boston Public Schools, Boston, MA: Senior Landscape architect and lead designer for the design of innovative GI practices constructed at five existing Boston public schools. The GI practices will serve as demonstrations for future redevelopment and stormwater improvements at Boston public schools (BPS) throughout the city.

NES, Inc., Site Engineer, 1993-1998

Q13

Plan A

Plan B

Dog Grove or Picnic Area

Q11

Frisella Engineering, Inc., Project Manager, 2003-2006

Cocheco Waterfront Development, Dover, New Hampshire: Senior Engineer and Landscape Architect for the conceptual design and vision plan for water front development. Assisted with the development of green infrastructure strategies and shoreline design into the open space plan to address climate change and sea level rise.

Event Space with Ice Rink

University of Rhode Island, Adjunct Professor, 2002-2007

Science Exploration Trail

A. Refrigerated Rink

Northeast Engineers and Consultants, Inc., Project Manager/ Senior Landscape Architect, 2006-2007

OVERALL FEEDBACK: IF YOU HAD TO SELECT JUST ONE PLAN, WHICH PLAN DO YOU PREFER? Other Plan C: At Upper Terrace Other

Plan D: At Little League Field Plan A & B: At Multi-Use Field

Warming Hut Equipment / Facilities Storage Indoor Community Room

BUILDING LOCATION: WHICH LOCATION DO YOU PREFER? Calahan Park Comprehensive Plan Report

Formalize Connections

KEY PROJECTS

C. Existing Lawn

Brian Kuchar,

Q8 RLA, P.E., LEED AP

B. Hybrid

Building Amenities

A . Traditional

Sustainable Environmental Solutions

Concessions Stand / Snack Shack

Viewing

Deck dedicated pickleball courts Picnic Area

+ updated siteTerraced lighting Slope on paths and athletic resources Year-Round Public Restrooms

Seating

BBQ A full summary of the concept menu results can be found Grills in Appendix C along with full size concept plans, precedent imagery, and the concept GATHERINGmenu SPACES &questions. SITE AMENITIES BUILDING AMENITIES Open Air Covered Area

April 1, 2022

Final Comprehensive Plan

Final Comprehensive Plan rendering, for a full size version of all comprehensive plan renderings, enlargements and diagrams, refer to Appendix D.

Final Comprehensive plan Feedback provided by the community through the concept menu provided direction on which elements to include and where, layered with plan goals to develop a final comprehensive plan. This plan was presented to the public at the third virtual workshop for review and feedback. A full-size copy of the plan, along with enlargements of key areas, can be found in Appendix D. The following summary of improvements included in the comprehensive plan is organized by the project goals.

A rerouted and regraded pathway, referred to in the comprehensive plan as an East-West connection, links the lower terrace all the way east past the parking lot to create a continuously paved connection along Locust Street. This path will need a series of approximately 9 accessible ramps (30’ each with 5-foot landings between and handrails on both sides) to provide an accessible route up the side of the steep slope from the lowest terrace.

Formalize all existing paths and connections throughout the park and add additional routes to create a looping path network to enhance accessibility.

Create an entrance to connect the southwest corner of the park to Pine Street via a boardwalk through the wetland and a second path from Pine Street via a sloped walkway up to the lower fields.

Provide steps and a sloped path to connect the middle and upper terrace, near the tennis courts and multi-use field.

Add a path and steps to connect to Shelburne Road where the slope is steep.

Add an accessible path around the west side of the little league field. A retaining wall and guard rail will be needed to expand the flat area at the top of the hill and make the path accessible.

Formalize the woodland paths and develop an accessible exploration trail.

Circulation / Entrances The comprehensive plan includes a formalization of paths to encourage connections to the site from the surrounding streets, improve accessibility within the site, provide safe routes through the site for pedestrians and cyclists, and provide new passive recreation opportunities within the park. A hierarchy of path types is proposed with primary routes providing 8- to 10-foot-wide paths with ample room for multimodal transportation, and secondary 4- to 6-foot-wide paths within the park to provide passive recreation and accessible connections to site elements. To work towards these objectives, the comprehensive plan proposes the following updates: +

Add a short strip of sidewalk on the south side of Locust Street to create a safe connection between Pine St and the lowest terrace of the park. A retaining wall will be needed on the park side to carve out a space for the new sidewalk.

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Calahan Park Comprehensive Plan Report

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed Circulation

Calahan Park Comprehensive Plan - Proposed Accessibility

Potential accessible path surfacing. From left to right: boardwalks in wet areas, stabilized stonedust, and paved concrete. Image source left to right: Offshoots, Offshoots, Wagner Hodgson Landscape Architecture Calahan Park Comprehensive Plan Report

April 1, 2022

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed Multi-Use Building amd Proposed Playground location and phasing strategy

Path materials have not been selected but pervious surfaces are preferred where possible, except for the primary pathways which are intended to be concrete paths for accessibility and longevity. Using pervious surfaces where appropriate will allow stormwater to infiltrate into the site and reduce water being added to the combined sewer overflow system. While not explicitly located in the comprehensive plan, the design team recommends adding a hierarchy of park signs consistent with the BPRW signage package. At a minimum, the following locations should be considered for signage to improve wayfinding at park entries and within the park: +

Park entrances to north and south of parking lot

Shelburne Road walkway

Pine Street – Southwest Entry

Pine Street – Northwest Entry

Structures Multi-Use Building: The new multi-use structure will have an 80’ x 45’ footprint, with a covered 16’ deep terrace facing south. The program is similar to the existing structure, with space assigned to a concession area, equipment storage, and restrooms. To increase visibility from the street, there is a proposed covered 20’ wide ‘dog trot’ between two equal volumes. In its current iteration, the building has a 4,880 SF footprint, with 2,650 SF of interior space, 2,230 SF of covered exterior space. The location is intended to allow for good solar exposure with photo-voltaic panels to make the building net-zero energy.

April 1, 2022

The comprehensive plan recommends (4) non-gendered, single-use restrooms. Code requires that 50% of these restrooms will need to meet accessibility requirements. However, BPRW has a goal to provide four fully accessible restrooms in this location with at least one adult/versatile change table. The plan recommends the building be insulated and conditioned for year-round use, though some components may not require the same conditioning as the restrooms. Equipment storage for example, may not need year-round heating and cooling. Pavilion The pavilion structure is 80’ x 140’, with an 80’ x 20’ enclosed space along its northern elevation. The structure is for covered outdoor space in the summer and an opportunity for a covered ice rink in the winter. The enclosed space would contain (2) non-gendered, single-use restrooms, conditioned for yearround use. The remainder of the space would be used to store equipment associated with the pavilion (rink maintenance, etc.), or for equipment storage for the adjacent basketball, tennis and pickleball courts.

Playground: The comprehensive plan includes a proposed playground. The community requested a combination of traditional play equipment like slides, swings, and climbing structures, as well as more natural materials and potential for nature play elements. Locating the playground next to the proposed building provides easy access to the year-round restrooms and covered area for shelter from the elements. The location of the playground was shifted to the top of the sledding hill, creating potential to integrate the playground into the slope of Calahan Park Comprehensive Plan Report

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed Pavilion

the sledding hill (re: embankment slides, climbing routes etc.) and to capitalize on the view west towards the lake. This shift also creates a buffer space between Locust Street, the parking lot and the play space which will include play equipment for all age groups in one central location. In order to accommodate the initial playground renovation slated for fiscal year 2022 prior to the full comprehensive plan implementation, a Phase One playground will be constructed in a zone that will not impact future adjacent comprehensive plan revisions to the building and walkway. A Phase Two will be added in the future to expand the play area into the large open space at the top of the sledding hill which will be created when the existing building is removed. In addition to the formal playground, the adventure trail and boardwalk are included on the south side of the park to provide additional opportunities for STEAM (Science, Technology, Engineering, the Arts and Mathematics) exploration and nature play on an ADA accessible route through the existing woodland. This trail is intended to provide access to a series of natural elements and play opportunities.

Athletic Resources: The park’s athletic facilities are recommended to be updated in a phased approach. Phases will be determined by the City as funds allow and will be coordinated with the overall comprehensive plan layout. Fields Public feedback indicated hybrid equipment with both natural and traditional elements should be prioritized. Photos sourced from Columbia Cascade and Earthscape playground equipment manufacturers. Calahan Park Comprehensive Plan Report

The baseball fields all remain in their existing locations with the following proposed updates:

April 1, 2022

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed athletic resource improvements

When due for replacement, all fields will receive angled backstops instead of the existing straight backstops to help minimize foul ball trespass.

Foul-ball safety netting will be provided between the Little League field and the playground to reduce risk of foul balls entering the play space or adjacent flexible-use space.

S.D. Ireland and Bentley Fields, on the lower terrace, will receive updated stormwater management practices, refer to proposed stormwater practices for additional information.

An accessible spectator viewing deck platform along the ramped walkway will provide an on overlook at Bentley and S.D. Ireland Fields

A picnic pavilion transformed into a winter ice rink at the T.B. Hanna Station in Raymore, MO. Source: Raymore, MO Parks and Recreation.

The two multi-use fields have not been identified as needing any large updates at this time. Paths along both size of the large multi-use field have been delineated in the plan to create an accessible loop within that terrace, as well as the potential for terraced seating built into the slope on the east side. If the field undergoes future work there are stormwater practice recommendations that should be considered, described in the stormwater section.

The basketball courts will be relocated to the east of their existing location to allow room for the Pavilion, as seen on the enlargement on page 18. In their new location, the courts will be resized to meet regulations and a new fence added around their perimeter to help retain balls within the space. The courts can optionally be surfaced as multi-sport courts to create a more flexible use area. A retaining wall will be needed along the northeast and east sides of the court, which can be incorporated into slope seating along the edge of the courts.

Courts

Rinks

The tennis courts will be shifted to allow room for updated pathways and a tree trench for court surface stormwater management. The new courts will include three tennis courts separated from four pickleball courts by appropriate screening, and the entire court surface will be fenced in.

A permanent location for the larger ice rink will be created within the covered pavilion. A proposed 60’ x100’ dedicated rink space is suggested to be included with the pavilion design process. This location will allow a concrete surface suitable as a base, access to water for pouring the rink, and the covered space will reduce the demands of rink maintenance for this

April 1, 2022

Calahan Park Comprehensive Plan Report

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed community garden expansion

community-run amenity. Additionally, the open space just north of the existing shed will continue to function as a mini multiuse field and ice rink space ideal for younger skaters.

Gathering Spaces Throughout the park there will be many new opportunities to gather in large or small groups. The new covered multiuse space at the multi-use building and the pavilion will be formalized gathering that can be rented out for events and also be used by the community on a day-to-day basis. Many informal gathering spaces can be found throughout the park as well, examples include: +

Benches along the shaded tree trench allée for watching games on the courts, overflow seating for events at the pavilion, or sunset views down to the lake

Terraced seating built into the slope at the flexible use space adjacent to the multi-use building

Terraced seating to the east of the multi-use field and west of the pavilion (overflow)

Benches along the top of the sledding hill

An overlook along the path to watch games on Bentley and S.D. Ireland fields

The wetland overlook on the boardwalk

The community garden informal open space

Calahan Park Comprehensive Plan Report

Community Garden The community garden expansion design is directly influenced by a plan drafted by the community gardeners themselves. It features a terraced expansion to the west and will create space for approximately 10-14 additional families to have plots at the park. An open space around an existing tree will remain as an informal gathering space. Materials storage is proposed to shift to the north side of the garden, near the parking spaces, in order to allow space for the new path down the slope from Shelburne Road.

Site Utilities Along with updates to surfacing and site furnishings, the plan proposes that the park be updated to provide the community with access of additional utility-based amenities such as Wi-Fi, charging stations, and water bottle refill stations. These amenities will benefit all park users including unhoused neighbors. Additionally, site lighting updates are proposed throughout the park to create safe pedestrian routes along the primary corridors and at athletic resources to elongate the seasons. Updated lighting will be especially beneficial in the winter months to expand site accessibility and use into the early evening hours. See diagram on page 21 as well as the full-size diagram in Appendix D for an overview of the proposed site lighting of athletic areas, buildings, and primary pedestrian walking routes

Views Preserving and celebrating views west to the lake was a key feature of the park identified during the planning process.

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Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed lighting on primary paths, athletic resources, and buildings

Calahan Park Comprehensive Plan - Seasonal program expansion

Several site elements are placed at key viewsheds to capitalize on the views including the playground, tree allée (tree trench), and covered pavilion. Each of these elements, also created to function as gathering spaces, will provide visitors with a stunning view west. New buildings were carefully located to maintain existing views and block sight lines within the park.

Multi-Functional Spaces / Seasonal Program Expansion The comprehensive plan focuses on creating spaces with more than one function to capitalize on the available space. The multi-use building located north of the Little League field features amenities including a snack shack, equipment April 1, 2022

storage, year-round restrooms, and a covered patio for shelter from the elements. Similarly, the covered flexible-use pavilion can be an event space, picnic shelter, yoga studio, etc. in the summer and can transform into a covered rink in the winter months. To provide a year-round public amenity, the comprehensive plan focuses on providing additional shoulder season and winter opportunities. The proposed dedicated rink space within the pavilion will provide a consistent winter activity on site, as do the preserved sledding hills. The improved circulation proposed offers snowshoeing and cross-country ski routes within the park. Finally, updated site lighting on the pedestrian routes, athletic resources, and buildings will elongate the Calahan Park Comprehensive Plan Report

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed plant communities

existing sport seasons and increase available hours for outdoor recreation in the winter months.

Site Ecology - Vegetation In the spaces between the programmed areas, there is an opportunity to improve the ecological value of the site by shifting the maintenance practices and vegetation types over time. The comprehensive plan identifies opportunities at the groundcover layer, understory, and tree canopy to provide additional ecological and wildlife benefits. Groundcover Layer: As the park is updated, key areas for intervention include: converting most sloped areas between the park’s terraced fields from traditional lawn turf to native meadows, pollinator meadows, and low-mow lawn. This transformation will reduce the maintenance required and supports biodiversity by providing habitat and food sources for insects and wildlife. Understory: Along Locust and Pine Streets, a thicket, or dense understory shrub planting, is recommended to provide a vegetative buffer from the streets. This planting will provide habitat and food for wildlife and can provide phytoremediation benefits by cleaning particulate matter from vehicular traffic out of the air. Canopy: Any new tree plantings should be native species with high wildlife value and be provided in a variety of heights to promote species and tree age diversity. Per the Vermont Department of Forestry, example species include Quercus

Calahan Park Comprehensive Plan Report

alba, Quercus bicolor, Quercus rubra, Fagus grandifolia, Amelanchier laevis, Acer rubrum, Nyssa sylvatica, and Populus tremuloides.

Site Ecology - Stormwater Calahan Park is located within a highly developed neighborhood with varying soils providing limited space to absorb and treat rainfall. Consequently, rainfall is quickly converted into surface runoff. The site runoff which causes erosion and localized drainage problems also transports sediments, nutrients, bacteria, and other contaminants to the City’s Combined Sewer Overflow (CSO). Stormwater overflow discharges from both CSOs and the storm sewer system contribute the impairment of the water quality of Lake Champlain. Increased runoff volume entering into the combined sewer system contributes to unnecessary additional wastewater treatment (usually at a lower treatment efficiency) or discharges of raw sewerage to the lake. Flooding from overwhelmed storm sewer systems can also cause damage to homes, businesses, and property. Therefore, as part of the proposed park improvements, the incorporation of Green Stormwater Infrastructure (GSI) is an integral part of the overall plan. Not only can the GSI improvements solve localized drainage problems, provide better pedestrian connectivity and improve recreational amenities, but they can also improve local water quality. The stormwater management approach can accomplish the following major objectives: +

Better manage stormwater in the park to reduce existing ponding and erosion and maximize useability. April 1, 2022

Final Comprehensive Plan

Calahan Park Comprehensive Plan - Proposed stormwater management

Provide treatment and encourage groundwater recharge to the greatest extent practicable.

Limit site impervious cover, direct water off pathways and hardscaping into stormwater management areas and increase buffer plantings and tree canopy.

Minimize runoff to the Pine Street CSO.

These objectives are met in the comprehensive plan using the following stormwater management measures: +

Bioretention System (rain gardens)

Subsurface Tree Trench (Tree Allée)

Underground Infiltration System

Permeable Surfaces

Constructed Wetland

Starting from the top of the hill by Shelburne Street and moving down to Pine Street, surface runoff from the community garden area and tennis and pickleball courts would be collected and directed into a subsurface tree trench below the multi-use space previously identified as the tree trench allée. The trench would store and infiltrates water in a subsurface gravel reservoir under the tree planting soil to allows root to grow down and access the water. Stormwater from the basketball courts/multi-use courts and covered skating rink as well as Gove Court would be directed into a bioretention area at the end of Gove Court. This bioretention area would be a planted depression that would hold and filter stormwater. To achieves this, a portion of the paved area at the end of Gove Court would need to be reclaimed for this practice, reducing impervious surface and directing April 1, 2022

road runoff into the GSI. This location, between the mini rink and the covered rink would create a stormwater feature with educational opportunities and pedestrian boardwalk through the feature. Overflow during larger rain events from the tree trench and the bioretention area would be collected via a closed pipe system and directed to underground infiltration chambers located beneath the soccer fields. This approach would take advantage of the well-draining soils in this area as the chambers would store and infiltrate overflow water from the uphill areas of the park. The existing swale in the southeastern corner of the soccer fields would be enhanced to improve drainage, directing water from the slope to the east away from the fields. The enhanced grass swale along the southern edge of the park would continue to direct water into the wooded area. Pathways would be designed to be elevated or use boardwalks to ensure safe circulation. Erosion control and additional swale retrofits would help direct the water through this area downhill where it would flow into another vegetated swale, directing water into the large wet area at the southwestern corner of the park. The existing wooded depression would be converted to a constructed wetland, which would store and filter water through a constructed series of deep and shallow pools with wetland plantings. This nature-based system would provide water quality improvements and also potentially detain stormwater prior to discharge into the city’s closed drainage system. These updates would create a unique area in the park and an opportunity to create an entrance into the park from Pine Street. Calahan Park Comprehensive Plan Report

Final Comprehensive Plan / Implementation

Calahan Park Comprehensive Plan - Proposed constructed wetland and boardwalk entry to the park

Stormwater from the new concession building, and surrounding paths, would drain into an expansion of the bioretention area along Locust Street. This location is another great opportunity for educational signage. Any water that flows downhill on the path moving west from the playground area would be directed off the path into a cascading vegetated swale to reduce the potential for erosion and ensure accessibility on the path to the proposed northwest entrance from Locust Street. On the ball fields, where the soil is dense and not well draining, stormwater would filter through the top layer of soil into underdrains, or perforated pipes that direct the water to the eastern edge of the fields. Here, an underdrain would bring the water south into the vegetated swale and to the constructed wetland. See Appendix D for diagrams of the stormwater management practices proposed.

Implementation Estimated costs The preferred comprehensive plan design is estimated at approximately 9.5 million. The schedule of probable cost, included below, allows for the suggested site improvements as well as the associated design costs to complete the project in full. The unit prices used are based upon the latest Vermont Agency of Transportation (VTRANS) five year average price list whenever possible or the best available information including the latest Massachusetts Department of Transportation weighted unit pricing. Unit prices provided in the current VTRANS data are based upon typical construction costs and data from July 2015 through June 2020 and may not reflect the change in unit prices that has since occurred due to supply issues, adjustments to material and labor costs, site conditions and inflation.

The plan proposes an accessible boardwalk and viewing platform similar to this boardwalk seen at the Robert Frost Trail in Ripton, VT. Calahan Park Comprehensive Plan Report

April 1, 2022

Implementation Project: Calahan Park Master Plan Location: Burlington, VT Submission: Master Plan - Opinion of Probable Costs Date: 04/01/2022

Estimator: JB/HC

Checked By: KK/BK

This opinion of probable costs is based on the conceptual master plan for Calahan park, March 2022, prepared by Offshoots, Inc. and Horsley Witten Group and is for planning purposes only. The unit prices are based upon the latest VTRANS 5 Year Averaged Price List (July 2015-June 2020), 2018 Specifications, or best available information. OPINION OF PROBABLE COSTS Unit

QTY

Unit Cost

Playground - Phases 1 & 2 *Excludes lighting and all vegetation Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Tree Protection

Total Cost $230,613.50

$3,967.00 $1,500.00

$5,467.00 $3,967.00 $1,500.00

$5.60

$1,932.00 $1,932.00

$3,000.00

$3,000.00 $3,000.00

LS SF

1 21225

$2,000.00 $1.30

$29,592.50 $2,000.00 $27,592.50

Site Elements Play Equipment Surfacing: Wood Fiber with Rubber Accessible Components, 9in Depth

ALLOW CY

1 582.44

$160,000.00 $50.00

$189,122.00 $160,000.00 $29,122.00

Lawn Repair Lawn Repair and Overseeding, as needed

ALLOW

$1,500.00

$1,500.00 $1,500.00

Erosion Control Silt Fencing Site Demolition Remove Existing Playground Equipment Site Clearing and Earthworks Selective Clearing Allowance Rough Grading

ALLOW ALLOW

1 1

345

ALLOW

Multi-Use Building & Covered Multi-Use Space *Excludes landscape lighting and all vegetation Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Tree Protection

$621,920.40

$10,697.00 $2,500.00

$13,197.00 $10,697.00 $2,500.00

$5.60

$1,422.40 $1,422.40

$25,000.00

$25,000.00 $25,000.00

12650

$1.30

$16,445.00 $16,445.00

ALLOW ALLOW SF

1 1 3412

$470,000.00 $50,000.00 $13.00

$564,356.00 $470,000.00 $50,000.00 $44,356.00

ALLOW

$1,500.00

$1,500.00 $1,500.00

ALLOW LS

1 1

254

ALLOW

Site Elements Building (80' x 45'), including utilities Covered Multi-Use Space (Pergola) Flexible Use Space (Assume Stabilized Stonedust) Lawn Repair Lawn Repair and Overseeding, as needed

Erosion Control Silt Fencing Site Demolition Remove Existing Building & Site Features Site Clearing and Earthworks Rough Grading

Primary & Secondary Paths

April 1, 2022

$1,059,753.72

Calahan Park Comprehensive Plan Report

Implementation OPINION OF PROBABLE COSTS Unit

QTY

ALLOW ALLOW

1 1

Erosion Control Silt Fencing

Site Demolition Remove and Reclaim Asphalt (existing sidewalk) Site Clearing and Earthworks Selective Clearing Allowance Rough Grading

Unit Cost

Total Cost

*Excludes lighting, GI, and all vegetation **Excludes all Boardwalks over GI, Tree Trench *** Assumes path materials for design intent Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Tree Protection

$18,227.00 $1,500.00

$19,727.00 $18,227.00 $1,500.00

7911

$5.60

$44,301.60 $44,301.60

36222

$0.25

$9,055.50 $9,055.50

LS SF

1 48000

$6,000.00 $1.30

$68,400.00 $6,000.00 $62,400.00

Site Elements Concrete Walkways ADA Accessible Concrete Ramps and Landings Concrete Ramp Handrails Stone Dust Paths Concrete Stairs Stair Handrails Site Wall (Dry-laid Stone) (103.5 LF, 2'-6" Avg. Ht.,1'-0" Wide) Adventure Trail - Stonedust Path Adventure Trail - Boardwalk

SF SF LF SF SF LF FACE FT SF SF

24034 2480 624 19394 360 46 522.5 3530 835

$9.83 $9.83 $50.00 $13.00 $125.00 $50.00 $130.00 $13.00 $120.00

$805,269.62 $236,254.22 $24,378.40 $31,200.00 $252,122.00 $45,000.00 $2,300.00 $67,925.00 $45,890.00 $100,200.00

Lawn Repair Lawn Repair and Overseeding, as needed

ALLOW

$3,000.00

$3,000.00 $3,000.00

440

$250.00

$110,000.00 $110,000.00

Overlook Platform at Bentley Field Decking and rail, including structural support Pavilion with Ice Rink, and Mini Multi-Use Rink

$899,160.20

*Excludes landscape lighting and all vegetation **Exludes bioretention system & Tree Trench Allee Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details

$15,465.00

$15,465.00 $15,465.00

462

$5.60

$2,587.20 $2,587.20

12216

$0.50

$6,108.00 $6,108.00

LS SF

1 16000

$2,000.00 $1.30

$23,000.00 $2,000.00 $20,800.00

ALLOW ALLOW

$100,000.00 $720,000.00 $30,000.00

$850,000.00 $100,000.00 $720,000.00 $30,000.00

$2,000.00

$2,000.00 $2,000.00

ALLOW

Erosion Control Silt Fencing

Site Demolition Remove Existing Basketball Courts Site Clearing and Earthworks Selective Clearing Allowance Rough Grading Site Elements Building (80' x 20') Pavilion with Ice Rink (80' x 120') Mini Multi-Use Field/Rink (50' x 85')

ALLOW

1 1 1

Lawn Repair Lawn Repair and Overseeding, as needed

ALLOW

Calahan Park Comprehensive Plan Report

April 1, 2022

Implementation OPINION OF PROBABLE COSTS Unit

QTY

Unit Cost

Courts: Basketball, Tennis, Pickleball

Total Cost $508,656.00

*Excludes lighting and all vegetation **Exludes bioretention system & Tree Trench Allee Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details

$8,749.00

$8,749.00 $8,749.00

$5.60

$4,244.80 $4,244.80

24360 1

$0.50 $3,000.00

$15,180.00 $12,180.00 $3,000.00

LS SF

1 31644

$3,000.00 $1.30

$44,137.20 $3,000.00 $41,137.20

Site Elements Basketball Court Tennis / Pickleball Courts Court Fencing Retaining Wall (157 LF, 3'-0" Avg. Ht. (front side), 0'-6" Avg. Ht. (back side),1'-0" Wide)

SF SF LF FACE FT

13440 24720 1137 555.5

$8.00 $8.00 $50.00 $130.00

$434,345.00 $107,520.00 $197,760.00 $56,850.00 $72,215.00

Lawn Repair Lawn Repair and Overseeding, as needed

ALLOW

$2,000.00

$2,000.00 $2,000.00

ALLOW

Erosion Control Silt Fencing

758

Site Demolition Remove Existing Tennis Courts Remove Existing Site Features

SF LS

Site Clearing and Earthworks Selective Clearing Allowance Rough Grading

Fields: Baseball and Multi-Use *Excludes lighting and all vegetation Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Site Elements Baseball Diamonds and Fields Repaired as Necessary Score Board at Little League Field Angled Backstop at Little League Field Foul Ball Netting between Little League Field and playground/flexible use area Angled Backstop at S.D. Ireland Field Optional Angled Backstop at Bentley Field Multi-Use Fields Repaired as Necessary Retaining Wall (106 LF, 1'-6" Avg. Ht. (front side), 0'-3" Avg. Ht. (back side),1'-0" Wide) Guard Rail on Retaining Wall

$146,968.00

ALLOW

ALLOW 1 ALLOW 1 LF 102 LF 131 LF 142 LF 68 ALLOW 1 FACE FEET 188.5 LF 106

$2,528.00

$2,528.00 $2,528.00

$10,000.00 $6,500.00 $230.00 $125.00 $230.00 $230.00 $10,000.00 $130.00 $50.00

$144,440.00 $10,000.00 $6,500.00 $23,460.00 $16,375.00 $32,660.00 $15,640.00 $10,000.00 $24,505.00 $5,300.00

Stormwater Systems and GI Boardwalks

$1,364,310.10

*Excludes lighting **Includes all necessary vegeation unless otherwise noted Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Tree Protection Erosion Control Silt Fencing

April 1, 2022

ALLOW ALLOW

1 1

3736

$23,465.00 $3,000.00

$26,465.00 $23,465.00 $3,000.00

$5.60

$20,921.60 $20,921.60

Calahan Park Comprehensive Plan Report

Implementation OPINION OF PROBABLE COSTS Unit

QTY

LS SF

1 21695

$5,000.00 $1.30

$33,203.50 $5,000.00 $28,203.50

SF SF SF ALLOW N/A ALLOW LF ALLOW SF ALLOW

6500 7811 4613 1 0 1 400 1 3,000 1

$24.00 $30.00 $30.00 $50,000.00 $0.00 $30,000.00 $25.00 $75,000.00 $20.00 $150,000.00

$903,720.00 $156,000.00 $234,330.00 $138,390.00 $50,000.00 $0.00 $30,000.00 $10,000.00 $75,000.00 $60,000.00 $150,000.00

N/A

$0.00

Boardwalk over Constructed Wetland at Pine Street (Decking, helical piles and installation)

375

$750.00

$281,250.00

Boardwalk over Bioretention System at Gove Court (Decking, helical piles and installation) Boardwalk within Adventure Trail (Decking, helical piles and installation)

100

$750.00 $500.00

$45,750.00 $50,000.00

ALLOW

$3,000.00

$3,000.00 $3,000.00

Site Clearing and Earthworks Selective Clearing Allowance Rough Grading Green Infrastructure Constructed Wetland at Pine Street (including plantings) Bioretention System at Gove Court (including plantings) Expanded Bioretention System at Locust Street (including plantings) Underdrain system at Baseball field CSO Tank beneath Baseball Fields (Not Part of Project Scope) Vegetated Swale at Locust Street, Along Pedestrian Ramp Daylit Swale - Feature, Leading to Constructed Wetland Tree Trench Allee (Does not include Pavers or Trees) Tree Trench Allee Permeable Pavers- Partial Walkway Subsurface Water Infiltration at Soccer Fields Potential Subsurface Water Infiltration at Bioretention System at Gove Street (Not part of project scope)

Unit Cost

Boardwalks

Lawn Repair Lawn Repair and Overseeding, as needed

$377,000.00

Expanded Community Garden *Excludes lighting and all vegetation Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details Site Clearing and Earthworks Selective Clearing Allowance Rough Grading Site Elements Paths (Assume stabilized Stone Dust) Stairs and Railing Timber Retaining Walls (376 LF, 2'-6" Avg. Ht. (front side), 0'-6" Avg. Ht. (back side)) Bed Material Allowance Water Expansion- hose bibs Lawn Repair Lawn Repair and Overseeding, as needed

$115,552.40

ALLOW

$1,988.00

$1,988.00 $1,988.00

LS SF

1 19418

$3,000.00 $1.30

$28,243.40 $3,000.00 $25,243.40

SF LS FACE FEET ALLOW ALLOW

1113 1 1128 1 1

$13.00 $8,000.00 $34.00 $15,000.00 $8,000.00

$83,821.00 $14,469.00 $8,000.00 $38,352.00 $15,000.00 $8,000.00

ALLOW

$1,500.00

$1,500.00 $1,500.00

Vegetation Improvements *Excludes all lawn repair and GSI Vegetation Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details

$831,093.45

ALLOW

Erosion Control Silt Fencing

6719

Site Clearing and Earthworks Selective Clearing Soil/ Amendments

LS LS

1 1

Calahan Park Comprehensive Plan Report

Total Cost

$14,294.00

$14,294.00 $14,294.00

$5.60

$37,626.40 $37,626.40

$5,000.00 $10,000.00

$15,000.00 $5,000.00 $10,000.00

April 1, 2022

Implementation OPINION OF PROBABLE COSTS

Planting Areas Meadow Areas (with 3 years of ongoing maintenance) Thicket Areas Woodland Areas Low Mow Lawn Areas

Unit

QTY

SF SF SF SF

69000 57935 68193 31500

Unit Cost

$3.00 $3.00 $5.00 $0.50

$737,520.00 $207,000.00 $173,805.00 $340,965.00 $15,750.00

$592.29

$26,653.05 $26,653.05

Trees Park Trees (Not including restoration saplings) Site Furnishings

$631,359.00

Site Preparation and Mobilization Mobilization/Demobilization & Police/Traffic Details

ALLOW

$10,859.00

Lighting

Misc. Furnishings Bench - Freestanding Park Bench Bench - Monolithic Stone Blocks (Bult into slopes) Trash/Recycling Receptacle

CONSTRUCTION COSTS General Conditions Contingency

EACH EACH

EACH EACH EACH

33 4 4 4 5 3 2

$6,500.00 $9,000.00 $9,000.00 $9,000.00 $9,000.00 $9,000.00 $9,000.00

$214,500.00 $36,000.00 $36,000.00 $36,000.00 $45,000.00 $27,000.00 $18,000.00

EACH LF EA

5 330 8

$4,600.00 $500.00 $2,500.00

$208,000.00 $23,000.00 $165,000.00 $20,000.00

EACH EACH

10% 20%

TOTAL CONSTRUCTION COSTS Permitting1 Site Survey, Engineering and Design Construction Administration2

$10,859.00 $10,859.00 $412,500.00

Pathway Lighting (including conduit and wiring), Assumes 1 pedestrian scale pole light (813' height) every 80' for 2,600 LF of primary pathway Tennis Court Lighting, Assumes 4, (including conduit and wiring) Basketball Court Lighting, Assumes 4, (including conduit and wiring) Multi-Use Field Lighting, Assumes 4, (including conduit and wiring) S.D. Ireland and Bentley Field Lighting, Assumes 5, (including conduit and wiring) Little League Field Lighting, Assumes 3, (including conduit and wiring) Mini Rink Lighting, Assumes 2, (including conduit and wiring)

NOTES:

Total Cost

TOTAL COST

$6,409,386.77 $640,938.68 $1,282,000.00 $8,332,325.45

1.25% 10%

$104,000.00 $833,000.00

$250,000.00 $9,519,325.45

It is assumed that permitting will be required. This cost does not include any filing fees that may be incurred nor any extensiver permitting processes.

Construction Administration cost includes full administration services by the designers. Services include project oversight, meetings, shop drawing review, field visits and periodic observations of construction. This cost will vary significantly based upon the amount work services to be provided. As-built plans and other project closure services are not included. 2

Qualifications: The following items are not included in the scope of work: Street Opening Permits / Bonds For Off Site Work Dewatering Cuts and Fills Temporary Water Any Hazardous Materials Found

April 1, 2022

Calahan Park Comprehensive Plan Report

Implementation

Calahan Park Comprehensive Plan - Proposed Playground location and phasing strategy

Early Action Items:

Opportunities for Collaboration:

Two potential early-action projects have been identified by BPRW with funds allocated for upcoming fiscal years. This will help coalesce community support and build energy around the project. The smaller interventions also include testing more ecological vegetation maintenance practices to make sure these improvements are viable before the larger project is built.

The Calahan Park comprehensive plan will serve as a guide for BPRW for future work and development within the park, and highlight opportunities to collaborate with other city departments and local groups on updates that will have multiple benefits. Through the planning process, the following opportunities to collaborate have presented themselves:

Project A: Playground Phase 1 +

Cost Estimate: $230,613.50 (total playground area)

Cost plus 30% Contingency: $299,798 (total playground area)

Timeline: Phase One, Fiscal year 2022

Goals: Phase One has an $80,000 budget. The goal is to demolish the existing play structure and keep existing swings in place if deemed safe to do so, install surfacing and play equipment in phase 1 area identified.

Project B: Court Design +

Court Design (10% of estimated court update including associated site work, vegetation, lighting and associated GSI cost): $90,000

Timeline: Fiscal year 2023-2024

Goals: Design the relocation of courts and associated site elements including regrading and stormwater.

Calahan Park Comprehensive Plan Report

CSO Tank – The CSO tank construction will likely impact the slope along Pine Street as well as a portion of the S.D. Ireland and Bentley Fields. Comprehensive plan work in this area could potentially be done in conjunction with this project including the sloped walkway on Pine Street and the recommended stormwater updates at the lower field.

Gove Court – The Calahan Park property line currently crosses over a portion of paving at the bottom of Gove Court, there is potential for a collaboration with the DPW on updating and creating the proposed bioretention system in this space to treat water from Gove Court and the adjacent pavilion building.

Locust Street Bioretention Systems – The proposed expansion of the rain garden west of the parking lot on Locust Street could include regrading of the parking lot to improve street water flow into the system.

Calahan Park Centennial Celebration – In 2024 Calahan Park will be one hundred years old which presents an opportunity for community engagement or events at the park. The comprehensive plan includes site furnishing updates (benches, water April 1, 2022

Implementation / Sources refill stations, etc.) and a centennial could be a good fundraising tool to implement some of these changes.

Summary The Calahan comprehensive plan provides a flexible framework for the city to use as a guide. Coordinated improvements will be tackled over time to shift the future park closer to the goals and objectives identified by the Calahan Park Community through this public design process. A fullsize copy of the comprehensive plan and additional plan enlargements can be found in Appendix D.

Sources +

Kelley, Kevin. WTF: What’s with the Dome-Topped Mansion on St. Paul?” Seven Days, March 25, 2015.

Louis L. McAllister Collection

Massachusetts Department of Transportation, Weighted Bid Prices

Burlington Open Space Protection Plan

PLACE

Burlington Tree Database

Plan BTV

BPRW Master Plan

Plan BTV: South End Master Plan

Champlain Elementary School Safe Routes to School

Shelburne Street Roundabout

Champlain Parkway Project

Where the Wild Things Are

Columbia Cascade Playground Equipment

Vermont Agency of Transportation, 5 Year Averaged Price List

Earthscape Playground Equipment

Vermont Center for Geographic Information

Google Earth, aerial imagery

VT Trees and Shrubs for Conservation, USDA

Blow, David. Historic Guide to Burlington Neighborhoods. Chittenden County Historical Society [Burlington, VT] 1991

Burlington Area History Group

Burlington Geographic

Note: Additional aerial photography and GIS data was provided by BPRW

April 1, 2022

Calahan Park Comprehensive Plan Report

Horsley Witten Group

Sustainable Environmental Solutions

Calahan Park Comprehensive Plan

Articles inside

Community Outreach

Final Comprehensive Plan

Land Acknowledgement