perimeter park @ dunwoody marta station master report

PERIMETER PARK @ DUNWOODY MARTA STATIONMASTER PLAN REPORTNOVEMBER 2014

1

Perimeter Community Improvement DistrictsYvonne Williams, President & Chief Executive OfficerJennifer Harper, PE, Program DirectorDawn Minecci, Finance / Operations ManagerTammy Thompson, External Affairs Manager

PCIDs Board MembersJohn Heagy, Central Perimeter CID ChairKay Younglove, Central Perimeter CID VIce ChairDean Patterson, Central Perimeter CID Board TreasurerDavid Canaday, Central Perimeter CID Board SecretaryRobert P. Voyles, Central Perimeter CID Board MemberDennis R. Kemp, Central Perimeter CID Board MemberJohn Lundeen, Central Perimeter CID Board MemberJohn Barton, Central Perimeter CID Board MemberMichael Grover, Central Perimeter CID Board MemberPeter J. Dunn, Central Perimeter CID Board Member

Chuck Altimari, Fulton Perimeter CID ChairDiane S. Calloway, Fulton Perimeter CID Vice ChairDean J. Patterson, Fulton Perimeter CID Board TreasurerCody Partin, Fulton Perimeter CID Board Secretary Donald Mabry, Fulton Perimeter CID Board MemberTad Leithead, Fulton Perimeter CID Board MemberKris Miller, Fulton Perimeter CID Board MemberPat Chesser, Fulton Perimeter CID Board Member

Advisory Stakeholder GroupGreg Floyd, Senior Land Use Planner, MARTABrent Walker, Director Parks & Recreation, City of DunwoodyMichael Smith, Public Works, City of DunwoodyMichael Starling, City of DunwoodyHelen Tapp, Sandy Springs ConservancyLinda Bain, Sandy Springs ConservancyKatie Bishop, Convention and Visitors Bureau of DunwoodyBill Grossman, Dunwoody Homeowners Association

Kimley-Horn and AssociatesRay StrychalskiEric BosmanMark KilbyBen SkidmoreJeffrey SmithJon Doherty

Dunwoody City CouncilMayor Mike Davis, City of DunwoodyDenis Shortal, Dunwoody City CouncilJim Riticher, Dunwoody City CouncilDouglas R. Thompson, Dunwoody City CouncilTerry Nall, Dunwoody City CouncilLynn Deutsch, Dunwoody City CouncilJohn Heneghan, Dunwoody City Council

ACKNOWLEDGMENTS

Community Leaders Keith Parker, MARTA Cheryl King, MARTAMayor Mike Davis, City of DunwoodyLarry Wilson, KDE/ State Farm Development

2PROJECT DESCRIPTION

The Perimeter Community Improvement Districts has helped transform the Central Perimeter area from a suburban office and retail district into the Southeast’s premier livable center. As this transformation has taken place, a critical challenge has been the creation of a significant public open space.

In early 2014, the Perimeter Community Improvement Districts (PCIDs), in cooperation with the City of Dunwoody, sought to create a master plan to transform 5 ½ acres of land directly north of the Dunwoody MARTA Station and west of Perimeter Mall into a signature open space. While the property has little to no development potential due to the presence of Perimeter Creek below and the MARTA rail lines overhead, it provides a rare opportunity to create a central, urban park within the flourishing mixed-use district.

The following sections outline the Master Plan for the 5 ½ acre site, providing a vision for the transformation of an inactive site into a signature green space for Central Perimeter. The document includes the approved concept plan and estimated construction budget, as well as the effort’s baseline information as of the spring of 2014, a record of public input gathered during the process, and several alternatives explored during the planning process.

The PCIDs Team in cooperation with the City of Dunwoody began the Master Plan process for Perimeter Park @ Dunwoody MARTA Station in March of this year. Over the last three months, the team has met with local government officials, area property owners and investors, and the public to craft a vision for a premier urban park in the center of the Perimeter District. The process has included almost a dozen stakeholder interviews, 3 staff worksessions, 2 meetings with a stakeholder taskforce of community and business leaders, and 2 public meetings. Based on the input of landowners and citizens, the team has developed two preliminary concepts that have been fully vetted and have created a final, consolidated Master Plan.

BASE DATA

4AREA CONTEXT MAP

5EXISTING CONDITIONS

NORTH PLAZA

SOUTH PLAZA

6EXISTING LAND USE MAP

7ZONING MAP

Office-Institution

Commerical

Mixed Use

Multi-Family Residential

Single-Family Residential

Pedestrian Community

Zoning Legend

PERIMETER PARK @ DUNWOODY MARTA STATIONZONING MAP

8FUTURE DEVELOPMENT / ZONING ENTITLEMENTS

9SUSCEPTIBILITY TO CHANGE MAP

10BASE MAP

11PROPERTY OWNERSHIP MAP

PUBLIC OUTREACH PROCESS

14PUBLIC OUTREACH PROCESS

Target Groups/Audiences

Throughout the four month process, stakeholder and public engagement was critical to creating a collective vision for Perimeter Park. The public involvement process included outreach to local officials, area landowners, community lead-ers, and the general public. A variety of small group and public meetings fostered the creation of a vision for the park, multiple reviews of early concepts, and clear direction toward the appropriate master plan for the park.

The public engagement process utilized a Project Management Team of PCIDs staff members; a Local Government Team comprised of City of Dunwoody, MARTA, and City of Sandy Springs staff; a dozen stakeholder interviews with area land-owners and community leaders; an Advisory Stakeholder Group; and two public meetings. The complete list of project meetings is below:

March 3- Project Management and Local Government Team MeetingMarch 24- Project Management and Local Government Team MeetingMarch 27-28- Stakeholder InterviewsApril 15- Advisory Stakeholder Group MeetingApril 22- Public Meeting #1May 1- MARTA Public Safety/Homeland Security MeetingMay 5- Project Management and Local Government Team MeetingMay 27- Advisory Stakeholder Group MeetingMay 29- Public Meeting #2

Engagement/Involvement Opportunities

Phase 1- Data CollectionStaff Kick-off Meeting- Kick-off meeting with PCIDs Staff or Project Management Team as composed by PCIDs to discuss project background, issues, challenges, goals, objectives, schedule, and communications.

Stakeholder Interviews (Group 1- Local Government Staff and Partners)- Three small group interviews conducted in person as information, data-gathering, and input meetings with City of Dunwoody staff, City of Sandy Springs staff, and MARTA

Phase 2- Site Analysis and InventoryStakeholder Interviews (Group 2- CID Stakeholders and Community Leaders)-Up to eight one-on-one or small group interviews conducted in person as informational and input meetings with area property owners, CID Board Members, local elected officials, community leaders, and Perimeter-area residents regarding preferences, needs, and future development potential. For those property owners that were located out of town, those meetings were conducted via telephone or conference call.

Stakeholder Task Force Meeting #1-Task Force Meeting 1 to review site analysis, issues and challenges, future development potential, and preliminary site and park ideas and opportunities.

15PUBLIC OUTREACH PROCESS

Phase 3- Design Charette & Conceptual DiagramsStakeholder Design Charette- Working meeting with PCIDs Staff and/or Project Management Team and City staff/representative to review and provide feedback on potential site and park design elements and concepts.

Public Design Charette-Advertised public meeting inviting local residents, business owners, and property owners to review site opportunities, early site concepts, and park options

Stakeholder Task Force Meeting #2-Task Force Meeting 2 to review conceptual site and park diagrams and design options.

Phase 4- Infrastructure StrategyNone

Phase 5- Preliminary Conceptual Master PlanStakeholder Task Force Meeting #3-Task Force Meeting 3 to review more advanced site and park design concepts.

Public Open House-Advertised public meeting inviting local residents, business owners, and property owners to review and provide input into more advanced site and park concepts.

Phase 6- Final Master PlanPresentation to PCIDs Board

Partners Final Presentation to MARTA, City of Dunwoody and City of Sandy Springs

16PARK SCALE COMPARISON MAP

BRYANT PARK - NEW YORK CITY, NY6.41 ACRES

WOODRUFF PARK - ATLANTA, GA4.28 ACRES

KLYDE WARREN PARK - DALLAS, TX5.52 ACRES

PACK SQUARE PARK - ASHVILLE, NC5.97 ACRES

PERIMETER PARK5.65 ACRES

PIEDMONT PARK PROMENADE - ATLANTA, GA5.32 ACRES

SPORTING EXAMPLEAPPROXIMATELY 4 FOOTBALL FIELDS

SPORTING EXAMPLEHOLE 11-AUGUSTA NATIONAL

17PARK DIAGRAM ONE

18PARK DIAGRAM TWO

19CROSS SECTIONS ONE

20CROSS SECTIONS TWO

21PARK IMAGERY EXAMPLES

22PARK IMAGERY EXAMPLES PERIMETER PARK @ DUNWOODY MARTA STATION

PARK IMAGERY EXAMPLES

23STAKEHOLDERS NOTES

PERIMETER PARK @ DUNWOODY MARTA STATIONSTAKEHOLDER INTERVIEW NOTES

1) Potential Park Users/Audience, design for a wide variety of users:a) Lunchtime spot for area WORKERS and EMPLOYEESb) Weekend VISITORS, shoppers, hotel patronsc) Community space for area RESIDENTS and FAMILIES with childrend) Parents with children and family members at NEARBY HOSPITALS

2) Park ideas, elements and suggestions:a)a) Combination of weekday LEISURE SPACE and EVENING/WEEKEND GATHERING SPACE for visitors and evening/weekend eventsb) OUTDOOR EATING AND RELAXATION spacec) OPEN GREEN SPACE/EVENT LAWN- potential programming for holiday events in partnership with Malld)URBAN RESPITE- places to sit and relaxe) A pleasant WALKWAY to stroll alongf) ENGAGE MARTA RAIL LINE INFRASTRUCTURE in an artistic way- general support for uplighting g)g) Incorporate ENVIRONMENTAL FEATURES, potential cistern for irrigation, water reuseh) Consider a WATER FEATURE, but avoid safety issues/concernsi) Make any water feature DESIGNED AND PURPOSEFULj) WALKWAYS OR BRIDGE over the creekk) Not encouraging playground equipment, but potentially ARTISTIC SULPTURES that can be climbing structures or played upon by childrenl) WELL LITm)m) WIFIn) A FOCAL POINT for public and/or visual art (possibility for temporary installations and/or street art?)o) Exercise stations, rest area, or RUNNERS STATIONp) RETAIL KIOSK- temporary or permanent installation if owned and managed by Perimeter Mall?q) TABLES AND CHAIRSr) Redesign and IMPROVE MARTA AUTO/BUS COURT along Perimeter Center Parkways) Ability to “CONTAIN” PARK users without being “a fence”t)t) Incorporate MARTA AVIS (new audio-visual information system)u) Area for FOOD TRUCKS- consider need for water, power, restrooms, etc.v) PUBLIC RESTROOM- desire for something attractive and innovative rather than a standard restroom buildingw) DOG AREA/FACILITIES (future or transitional use?)x) Heighten visibility of MARTA POLICE STATIONy) Something to DRAW PEOPLE IN- bandstand, amphitheaterz) Opportunities to increase BICYCLE usage or bike share kioskaa)aa) Consider a SOLAR FIELD as a park power source and SHADE STRUCTURE

3) Concerns or questionable park elements:a) COST, timing and fundingb) NOISE from MARTA rail (potential impact to the functionality of any event or performance space)c) Not for traditional PLAYGROUND EQUIPMENT/play setd) Do not overload the park with “stuff,” should be an urban park and NOT AN EXERCISE YARDe)e) Evening and weekend PARKING limitations/conflicts with mallf) Need sidewalk along PERIMETER MALL RING ROAD- limit places that pedestrian can run into or cross trafficg) HARNESS/UTILIZE WATER, but do not want to encourage public interaction with storm water featuresh) Keep MAINTENANCE reasonable- not overly difficult or costly to maintaini) VISIBILITY AND SECURITYj) Maintain ACCESS for MARTA vehicles and maintenance equipmentk) Not sure that amphitheater is best use of LIMITED SPACEl)l) NO SKATEBOARDINGm) WILDLIFE/GEESE

As the vision for Perimeter Park evolved in March and April of 2014 a series of key themes and elements became clear. The following stakeholder notes include a mix of input from stakeholder interviews, advisory stakeholder group meetings, and public meetings. Those themes highlighted in orange were identified as the highest priority items for Perimeter Park, while the complete list of ideas and elements guided the master plan’s design.

1) Potential Park Users/Audience, design for a variety of users:

24STAKEHOLDERS NOTES


4) Park examples to draw ideas from:a) Pack Square Park, Downtown Asheville, NCb) Little Sugar Creek Greenway, Midtown Charlotte, NC c) Klyde Warren Park, Dallas, TXd) Flexibility of Bryant Park, New York Citye)e) Old Fourth Ward Park, Atlanta, GA specifically “structured” walkways along the water (ability to view and experience the water without “interacting” with the water)f) Sandy Springs Park at Abernathy/Roswell Road

5) Success factors:a) UTILIZATION- frequented by area residents, employees, and visitorsb) ICONIC- part of Perimeter’s Brand as a district attraction/destinationc) FLEXIBILITY to evolve over time as the area changesd)d) VARIETY of spaces and potential activitiese) AESTHETICS- visually pleasing, sculpturalf) FOCAL POINT for future developmentg) FUNCTIONALh) ACTIVEi) SAFEj) WELL MAINTAINEDk)k) WELCOMING to and from the rail stationl) CONNECTIVITY to other walkways, developments and area amenitiesm) Enhances VISIBILITY to the Mall and surrounding propertiesn) OPPORTUNITIES FOR CHILDREN without being a “children’s park”

6) Other ideas:For Master Plana) Consider overlaying other “known” parks (and fairways) over the site aerial to gain a sense of size and scale of the oppo of the opportunityb) Engage local hotels and CVB in the discussion as well as Dunwoody Sustainability Committee

For Parkc) Keep it simpled) Consider creating a blank palette- build foundation and allow park and program to grow over timee) Exciting opportunity to turn dormant/unused land into something usefulf) Anything that can be done to activate the park and draw people to the park as THE CENTER of the districtg)g) Consider Perimeter Park as one element integrated within a larger network of parks and open spaces in the district (link/ flow from other green spaces at Lake Hearn City, State Farm, High Street, etc. into an “emerald necklace”)h) Encourage development along Hammond and Perimeter Center Parkway with retail that faces the park from across the streeti) Incorporate MARTA deck at Hammond and Perimeter Center as a development site within the Park Master Planj) Link artistic play structures or children’s amenities to Children’s Healthcare of Atlanta as a sponsorship/funding opportunity?k)k) Special tax district to fund parks and maintenance?


1) Potential Park Users/Audience, design for a wide variety of users:a) Lunchtime spot for area WORKERS and EMPLOYEESb) Weekend VISITORS, shoppers, hotel patronsc) Community space for area RESIDENTS and FAMILIES with childrend) Parents with children and family members at NEARBY HOSPITALS

2) Park ideas, elements and suggestions:a)a) Combination of weekday LEISURE SPACE and EVENING/WEEKEND GATHERING SPACE for visitors and evening/weekend eventsb) OUTDOOR EATING AND RELAXATION spacec) OPEN GREEN SPACE/EVENT LAWN- potential programming for holiday events in partnership with Malld)URBAN RESPITE- places to sit and relaxe) A pleasant WALKWAY to stroll alongf) ENGAGE MARTA RAIL LINE INFRASTRUCTURE in an artistic way- general support for uplighting g)g) Incorporate ENVIRONMENTAL FEATURES, potential cistern for irrigation, water reuseh) Consider a WATER FEATURE, but avoid safety issues/concernsi) Make any water feature DESIGNED AND PURPOSEFULj) WALKWAYS OR BRIDGE over the creekk) Not encouraging playground equipment, but potentially ARTISTIC SULPTURES that can be climbing structures or played upon by childrenl) WELL LITm)m) WIFIn) A FOCAL POINT for public and/or visual art (possibility for temporary installations and/or street art?)o) Exercise stations, rest area, or RUNNERS STATIONp) RETAIL KIOSK- temporary or permanent installation if owned and managed by Perimeter Mall?q) TABLES AND CHAIRSr) Redesign and IMPROVE MARTA AUTO/BUS COURT along Perimeter Center Parkways) Ability to “CONTAIN” PARK users without being “a fence”t)t) Incorporate MARTA AVIS (new audio-visual information system)u) Area for FOOD TRUCKS- consider need for water, power, restrooms, etc.v) PUBLIC RESTROOM- desire for something attractive and innovative rather than a standard restroom buildingw) DOG AREA/FACILITIES (future or transitional use?)x) Heighten visibility of MARTA POLICE STATIONy) Something to DRAW PEOPLE IN- bandstand, amphitheaterz) Opportunities to increase BICYCLE usage or bike share kioskaa)aa) Consider a SOLAR FIELD as a park power source and SHADE STRUCTURE

3) Concerns or questionable park elements:a) COST, timing and fundingb) NOISE from MARTA rail (potential impact to the functionality of any event or performance space)c) Not for traditional PLAYGROUND EQUIPMENT/play setd) Do not overload the park with “stuff,” should be an urban park and NOT AN EXERCISE YARDe)e) Evening and weekend PARKING limitations/conflicts with mallf) Need sidewalk along PERIMETER MALL RING ROAD- limit places that pedestrian can run into or cross trafficg) HARNESS/UTILIZE WATER, but do not want to encourage public interaction with storm water featuresh) Keep MAINTENANCE reasonable- not overly difficult or costly to maintaini) VISIBILITY AND SECURITYj) Maintain ACCESS for MARTA vehicles and maintenance equipmentk) Not sure that amphitheater is best use of LIMITED SPACEl)l) NO SKATEBOARDINGm) WILDLIFE/GEESE

MASTER PLAN REFINEMENT

26MASTER PLAN DESCRIPTIONS

Preliminary DesignThe park is designed as a focal point within the Perimeter District with the flexibility to accommodate both individual reflection and group activity space. Area employees and residents will benefit from the combination of large scale open space and meandering walking trails that enhance connectivity across the park and experience the MARTA rail infrastructure as an iconic element.

The designs include a partial cap/piping of Perimeter Creek in the southern portion of the site. While maintaining necessary storm water management capacity, the plan provides an open, flat green space between 1 and 1.5 acres in size. The Master Plan creates a larger corner plaza at Perimeter Center Parkway and opens the potential to reshape the MARTA Station entry into a more pleasant plaza space. The plan builds off of the existing Perimeter Center Parkway Streetscape and controls pedestrian access points along the Perimeter Mall loop road.

On the northern portion of the site, the design re-naturalizes Perimeter Creek, taking it out of the concrete channel and creating a series of ponds along a rock-lined stream. The design includes a series of walkways at street level and a series of bridges over the stream and terraces down to the waterway. An entry plaza anchors the north end of the park and provides a starting point for a ½ mile and 1 mile walking trail around the park.

The team has met with the Army Corps of Engineers and local stormwater to review the proposed improvements and discuss the initial feasibility of advancing this design concept.

Project BudgetingThe team is in the process of developing cost estimates for both design options. While the design is preliminary and there are many details to be worked out, construction of the park is anticipated to cost between $6 and $8.5 million. This high level estimate includes earthwork, restoration of Perimeter Creek, hardscape construction, landscaping, shade structures, high-tech restrooms, uplighting the MARTA rail tracks, and structural/stormwater enhancements.


Concept One

South Plaza• Creating a partial cap (almost an acre) requires extending retaining wall to create wider sidewalk and some park

space along mall loop road• Leaves area under MARTA tracks open for storm water management• Concept leaves MARTA parking and delivery drive as-is, in place• Creates a large corner plaza with potential location for self-cleaning public restroom• Builds off of existing PCIDs streetscape• Controlled pedestrian access along mall loop road with low evergreen shrubs and decorative fencing• Pedestrian loop is achieved by going through MARTA station• North Plaza• Re-naturalizes the stream, takes it out of the concrete channel, creates series of ponds with small fountains/aera-

tors, natural rock dams and water movement• Concept is to create elevated park spaces up at street level, looking down into and crossing over stream restoration• Created two pedestrian bridges at the mid-point of the North Plaza , good for pedestrian circulation and for overlook

spots (potential future connection to High Street across PCP)• Anchored the north end of the North Plaza with larger park and plaza space and potential for a secondary public

restroom facility• Overall pedestrian loop approximately 0.6 mile• Controlled pedestrian access along mall loop road with low evergreen shrubs and decorative fencing

28PARK MASTER PLAN | CONCEPT ONE

29PARK MASTER PLAN | CONCEPT ONE OPCC

PCIDsPERIMETER PARK @ DUNWOODY MARTA STATION ‐ MASTER PLAN ONEJune 9th, 2014Opinion of Probable Construction Cost

DEMO1 SITE CLEARING AC 5 $4,000 $20,0002 EROSION CONTROL LS 1 $60,000 $60,0003 EARTHWORK CY 16,000 $6 $96,0004 SOIL IMPORT/EXPORT CY 30,000 $15 $450,0005 SEWER AND STORM ABANDONEMENT LF 250 $6 $1,500

STORMWATER1 NYLOPLAST YARD INLETS EA 6 $400 $2,4002 12" HDPE PIPE LF 500 $18 $9,0003 HEADWALL EA 1 $6,000 $6,0004 STREAM RESTORATION LF 750 $2,400 $1,800,000

(SEE STRUCTURAL FOR VAULT STRUCTURE) EA 2 $600 $1,200WATER AND SEWER

1 1" WATER METER EA 2 $2,000 $4,0002 1" IRRIGATION METER EA 2 $1,800 $3,6003 1" PVC WATER LINE (C900) LF 40 $12 $4804 NEW SANITARY CLEANOUT EA 2 $600 $1,2005 8" DIP SANITARY LINE LF 250 $36 $9,0006 WATER, SEWER UTILITIES (ASSUMES TWO DOMESTIC METERS LS 1 $7,000 $7,000

LANDSCAPE / HARDSCAPE

1 CONCRETE ‐ SIDEWALKS (4") SF 34,200 $4 $136,8002 CONCRETE ‐ MULT‐USE PATH (6") SF 0 $6 $03 PAVERS ‐ PEDESTRIAN PLAZA SF 19,700 $12 $236,4004 STREETPRINT/ PED CROSSING SY 425 $120 $51,0005 CURBS LF 0 $10 $06 ASPHALT SY 0 $25 $07 CONCRETE ‐ STAIRS EA 0 $500 $08 ORNAMENTAL FENCE LF 1,050 $25 $26,2509 BOLLARDS EA 0 $800 $010 SEAT WALLS LF 0 $125 $011 CONCRETE RETAINING WALL (See Civil) SF 0 $45 $012 BENCHES EA 25 $2,000 $50,00013 WASTE RECEPTACLES EA 15 $1,000 $15,00014 BICYCLE RACKS EA 10 $1,000 $10,00015 SHADE STRUCTURES EA 0 $25,000 $016 EXERCISE EQUIPMENT EA 0 $2,500 $017 DRINKING FOUNTAIN EA 0 $1,500 $018 LANDSCAPE ‐ SHADE TREES EA 0 $700 $019 LANDSCAPE ‐ PLANT MATERIAL LS 1 $200,000 $200,00020 SOD SF 73,200 $0.50 $36,60021 IRRIGATION LS 1 $100,000 $100,000

ARCHITECTURE1 ARBOR STRUCTURES EA 1 $25,000 $25,0002 RESTROOM LS 2 $180,000 $360,000

LIGHTING/ELECTRICAL1 STREETSCAPE LIGHTING LS 1 $50,000 $50,0002 SECURITY LIGHTING LS 1 $3,000 $3,0003 COLUMN SPECIALTY UPLIGHTING LS 1 $200,000 $200,0004 SECURITY CAMERAS $0

STRUCTURAL1 PEDESTRIAN BRIDGE EA 2 $150,000 $300,0002 CANTILEVERED OVERLOOKS $03 VAULT STRUCTURE (PER CF STORAGE) CF 186,000 $6.50 $1,209,0004 CONC RETAINING WALL CY 713 $550 $392,130

Subtotal $5,872,5600% $0

Total $5,872,560Contingency: 20% $1,174,512

Grand Total $7,047,072

TOTAL PRICEBID ITEM NUMBER

ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE


Concept Two

South Plaza• Creating a full cap (1.5 acres) creates a very large and grand, great lawn area, flexible space, good for large

community gatherings and programs• Incorporates MARTA delivery driveway into large station plaza that engages the park• Creates an alternative pedestrian loop in addition to the one through the MARTA station• Creates two large corner plazas, one with potential location for self-cleaning public restroom and one with a potential

decorative water feature• Builds off of existing PCIDs streetscape (adds curvilinear hardscape/seating to promote flow into park)• Controlled pedestrian access along mall loop road with low evergreen shrubs and decorative fencing• North Plaza• Re-naturalizes the stream, takes it out of the concrete channel, creates series of ponds with small fountains/

aerators, natural rock dams and water movement• Concept is to create both an elevated park space up at street level, looking down into and crossing over stream

restoration, as well as, provide terraced walls and seating to allow users to engage stream• Provided one pedestrian bridge at the mid-point of the North Plaza , good for pedestrian circulation and for overlook

spots (potential future connection to High Street across PCP)• Anchored the north end of the North Plaza with larger park and plaza space and potential for a secondary public

restroom facility• Overall pedestrian loop approximately 0.6 mile• Controlled pedestrian access along mall loop road with low evergreen shrubs and decorative fencing

31PARK MASTER PLAN | CONCEPT TWO

32PARK MASTER PLAN | CONCEPT TWO OPCC

PCIDsPERIMETER PARK @ DUNWOODY MARTA STATION ‐ MASTER PLAN TWOJune 9th, 2014Opinion of Probable Construction Cost


STORMWATER1 NYLOPLAST YARD INLETS EA 6 $400 $2,4002 12" HDPE PIPE LF 500 $18 $9,0003 HEADWALL EA 1 $6,000 $6,0004 STREAM RESTORATION LF 750 $2,400 $1,800,000

(SEE STRUCTURAL FOR VAULT STRUCTURE) EA 2 $600 $1,200WATER AND SEWER

1 1" WATER METER EA 2 $2,000 $4,0002 1" IRRIGATION METER EA 2 $1,800 $3,6003 1" PVC WATER LINE (C900) LF 40 $12 $4804 NEW SANITARY CLEANOUT EA 2 $600 $1,2005 8" DIP SANITARY LINE LF 250 $36 $9,0006 WATER, SEWER UTILITIES (ASSUMES TWO DOMESTIC METERS LS 1 $7,000 $7,000


1 CONCRETE ‐ SIDEWALKS (4") SF 36,100 $4 $144,4002 CONCRETE ‐ MULT‐USE PATH (6") SF 0 $6 $03 PAVERS ‐ PEDESTRIAN PLAZA SF 30,000 $12 $360,0004 STREETPRINT/ PED CROSSING SY 425 $120 $51,0005 CURBS LF 0 $10 $06 ASPHALT SY 0 $25 $07 CONCRETE ‐ STAIRS / SEATING EA 2 $20,000 $40,0008 ORNAMENTAL FENCE LF 1,050 $25 $26,2509 BOLLARDS EA 0 $800 $010 SEAT WALLS LF 0 $125 $011 CONCRETE RETAINING WALL (See Civil) SF 0 $45 $012 BENCHES EA 25 $2,000 $50,00013 WASTE RECEPTACLES EA 15 $1,000 $15,00014 BICYCLE RACKS EA 10 $1,000 $10,00015 SHADE STRUCTURES EA 4 $25,000 $100,00016 EXERCISE EQUIPMENT EA 0 $2,500 $017 DRINKING FOUNTAIN EA 0 $1,500 $018 LANDSCAPE ‐ SHADE TREES EA 0 $700 $019 LANDSCAPE ‐ PLANT MATERIAL LS 1 $200,000 $200,00020 SOD SF 106,300 $0.50 $53,15021 IRRIGATION SF 124,000 $1 $124,000

ARCHITECTURE1 ARBOR STRUCTURES EA 3 $25,000 $75,0002 RESTROOM EA 2 $180,000 $360,000


STRUCTURAL1 PEDESTRIAN BRIDGE LS 1 $150,000 $150,0002 VAULT STRUCTURE (PER CF STORAGE) CF 310,000 $6.50 $2,015,0003 CONC RETAINING WALL CY 713 $550 $392,130

Subtotal $7,037,310$0


Grand Total $8,444,772



FINAL MASTER PLAN

34MASTER PLAN DESCRIPTION

Final Master Plan

Building on positive feedback and stakeholder input on both preliminary park concept plans, the final Perimeter Park Master Plan incorporates many of the preferred elements illustrated on the previous plans and incorporates several additional features.

South Plaza

In order to maximize the size of the south plaza’s open, non-structured community green space, the final master plan incorporates a full cap over the current storm water management area. The proposed green space is comprised of two open lawn areas, the Plaza Lawn and the Great Lawn. Together they provide over one acre of flexible, community green space that can be programmed and used in a variety of ways.

Each of the lawn areas is bordered by sweeping circulation paths that provide multiple circulation routes through and around the site while providing direct access to the Dunwoody MARTA Station. Hardscape plazas anchor each entry point into the park, particularly those at nearby intersections and roadway crossings along Perimeter Center Parkway.

The Plaza Lawn hardscape area includes generous seating areas and a spot reserved for a future self-cleaning public restroom. The Great Lawn plaza incorporates shaded seating areas under proposed arbor structures and a central water feature. The improvements in the south plaza area maintain existing MARTA service facilities and include additional landscape plant material and a low decorative fence for added separation and buffer between these services areas and public park spaces.

In order to provide a measure of safety for the future park users, MARTA and PCIDs will explore options to limit and control falling debris from the overhead tracks. Together, they will also explore adding artistic metal barriers, landscape material and security cameras on and around the existing MARTA track and column infrastructure.

35MASTER PLAN DESCRIPTION

North Plaza

During the Master Plan process, there was widespread support for re-naturalizing Perimeter Creek through a portion of the park. The final master plan for the north plaza removes the existing concrete channel and re-naturalizes the stream, creating a series of small ponds, natural rock dams and appealing water movement.

The north plaza design is crafted to create a successful park at two elevations; at street level and at stream level. Stake-holders expressed a strong desire for increased pedestrian circulation with a more urban experience around the park and a more serene environment along the edges of the stream. The north plaza design captures these varied, but comple-mentary settings.

The upper, street-level path incorporates the existing streetscape along Perimeter Center Parkway, provides a path along the mall loop road and includes the two pedestrian bridges over the streambed. The lower, stream-level path is ac-cessed by a series of broad stairs or sweeping switchbacks, and provides for circulation along the re-naturalized creek. Interspersed along this stream trail are a series of garden and reflection spaces where users can relax and enjoy the shade from the existing railway structure above. The north end of this park space is anchored by another large, open community space and a hardscape plaza that overlooks the Perimeter Creek waterway.Together these new park spaces are designed to be a signature focal point within the Perimeter District with a variety of spaces that foster both individual reflection and group activity space and provide flexibility to accommodate additional features and elements as needed over time.

As the park moves beyond the master plan stage towards becoming a reality, PCIDs, MARTA and the City of Dunwoody will develop a memorandum of understanding to cover operation & maintenance, policing and many other important items.

36FINAL MASTER PLAN

37

SUMMARY OF CURRENT & FUTURE PARK DEVELOPMENT & MAINTENANCE COSTS

PCIDsPERIMETER PARK @ DUNWOODY MARTA STATION ‐ FINAL MASTER PLAN August 7th, 2014Opinion of Probable Construction Cost (Based on 2014 Prices)


STORMWATER1 NYLOPLAST YARD INLETS EA 6 $650 $3,9002 12" HDPE PIPE LF 500 $50 $25,0003 HEADWALL EA 1 $6,000 $6,0004 STREAM RESTORATION LF 750 $2,400 $1,800,0005 PIPE EXTENTION (NORTH PLAZA) LF 80 $220 $17,600

WATER AND SEWER1 1" WATER METER EA 2 $2,000 $4,0002 1" IRRIGATION METER EA 2 $1,800 $3,6003 1" PVC WATER LINE (C900) LF 40 $12 $4804 NEW SANITARY CLEANOUT EA 2 $600 $1,2005 8" DIP SANITARY LINE LF 250 $250 $62,5006 WATER, SEWER UTILITIES (ASSUMES TWO DOMESTIC METERS) LS 1 $7,000 $7,000


1 CONCRETE ‐ SIDEWALKS (4") SF 39,600 $5 $198,0002 PAVERS ‐ PEDESTRIAN PLAZA SF 12,800 $15 $192,0003 STREETPRINT/ PED CROSSING SY 495 $155 $76,7254 CONCRETE STAIRS EA 8 $1,000 $8,0005 ORNAMENTAL FENCE LF 800 $25 $20,0006 SEAT WALLS LF 750 $125 $93,7507 BENCHES EA 25 $2,000 $50,0008 WASTE RECEPTACLES EA 15 $1,000 $15,0009 BICYCLE RACKS EA 10 $1,000 $10,00010 SMALL WATER FEATURE EA 2 $20,000 $40,00011 DRINKING FOUNTAIN EA 4 $1,500 $6,00012 LANDSCAPE ‐ PLANT MATERIAL LS 1 $300,000 $300,00013 SOD SF 85,000 $0.80 $68,00014 IRRIGATION SF 122,000 $1 $122,000

ARCHITECTURE1 ARBOR STRUCTURES EA 4 $40,000 $160,0002 RESTROOM EA 2 $180,000 $360,000


STRUCTURAL1 PEDESTRIAN BRIDGE EA 2 $150,000 $300,0002 VAULT STRUCTURE (PER CF STORAGE) CF 310,000 $10.00 $3,100,0003 CONC RETAINING WALL CY 356 $600 $213,333

Subtotal $8,413,838$0


Grand Total: $10,096,606



FINAL MASTER PLAN OPCC

Perimeter Park @ Dunwoody Station ‐ Perimeter Community Improvement Districts October 9, 2014

Summary of Current and Future Park Development and Maintenance Costs

Description Amount Responsible OrganizationPark Master Plan 105,000.00$ PCIDsLand Donation (5.6 acres) 2,500,000.00$ Perimeter MallFinal Design, Construction Documents & Permitting 850,000.00$ PCIDsBidding, Project management and Construction Administration 150,000.00$ PCIDsAnnual Maintenance 300,000.00$ City of Dunwoody

38PERIMETER PARK @ DUNWOODY MARTA STATION