Download PDF File South Park Blocks Master Plan Draft

Urban Forestry Commission AGENDA Briefing #2 - July 16, 2020 1. Schedule Update 2. Overview of Concept Development Phase South Park Blocks 3. Tree Succession Strategy Master Plan 4. Draft Preferred Design Block by Block 5. Discussion Draft Preferred Design

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 SCHEDULE UPDATE

Winter/Spring 2020 Review with TAC members March 11 CAC #5 June 2, 2020 CAC #6 June 2020 Draft Preferred Design for review through online open house and survey July 14 Joint Design Commission / Historic Landmarks Commission Briefi ng July 16 Urban Forestry Commission Briefi ng Summer 2020 Design and Master Plan refi nements Early Fall 2020 Council Hearing

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 OVERVIEW OF CONCEPT DEVELOPMENT PHASE

EMERALD ARROW CONCEPT DRAFT RECOMMENDED VISIONING BRAIDED DISTRICTS CONCEPT PREFERRED DESIGN DESIGN

MIRRORED CHAIN CONCEPT

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 Add small groups of trees, Transition to small groups of trees Central N/S planters removed Interconnected balance sun/shade areas potential new art space programmable Fully spaces renovated Future closed Social seating plaza street Central N/S 10TH Montgomery Hall planters modified Masonic Millar Library Temple Peter W Stott Center Portland & Viking Pavilion Art Museum Park Plaza Simon EMERALD Apartments Benson Vue Apartments Blackstone Residence Square Church Manor Southpark Jeanne Hotel Parkway Parkmill Building Apartments Lutheran St. James Christ, Scientist Sixth of Church Apartments Cumberland Apartment Roosevelt ARROW SW PARK WEST

! Arlington CONCEPT Club SW PARK EAST Closed planned First Oregon First affordable Christian Historical Congregational Arlene Schnitzer Concert Hall Native American streets Smith Memorial housing Church Society Church Shattuck Hall Neuberger Hall Cramer Hall Lincoln Hall Student & Community future mixed-use Student Union Museum Center 1500 SW building Avenue Park Portland’5 Centers for Annex Ladd Hotel the Arts New Heathman House Carriage Carriage Sovereign Hotel Block 123456789101112

Unique neighborhood identity: Playground renovation play/interactive art + social seating Extend + social seating Fully renovated Simplify native Shemanski plaza outdoor planting palette Rose/flower beds Low maintenance native Native mix planting- Square 10TH transition to NASCC study space Montgomery mix mass plantings Hall Masonic Millar Library Temple Peter W Stott Center Portland & Viking Pavilion Art Museum BRAIDED Park Plaza Simon Apartments Vue Apartments Blackstone Benson Residence Square Church Southpark Manor Hotel Jeanne Parkmill Parkway Apartments Lutheran Building St. James Christ, Scientist Apartments Sixth Church of Cumberland Apartment Roosevelt DISTRICTS SW PARK WEST ! ! ! ! Arlington CONCEPT ! Club ! ! SW PARK EAST Closed planned First Oregon First affordable Christian Historical Congregational Arlene Schnitzer Concert Hall Native American streets Smith Memorial housing Church Society Church Shattuck Hall Neuberger Hall Cramer Hall Lincoln Hall Student & Community future mixed-use Student Union Museum

Center 1500 SW

building Park Avenue Portland’5 Centers for Annex Ladd Hotel the Arts New Heathman House Carriage Sovereign Hotel Block 123456789101112

New event New Low maintenance spillover performance Planted native mix mass plaza plaza Modified angular planting areas buffer 10TH planting Montgomery Hall Woonerf street New median islands Masonic Millar Library Temple Peter W Stott Center Portland MIRRORED & Viking Pavilion Art Museum Park Plaza Simon Apartments Vue Apartments Blackstone Benson Residence Square Church Southpark Manor Hotel Jeanne Parkmill Parkway Apartments Lutheran Building St. James Christ, Scientist Apartments Sixth Church of Cumberland Apartment CHAIN Roosevelt SW PARK WEST ! ! ! CONCEPT ! ! Arlington Club ! ! SW PARK EAST planned First Oregon First affordable Christian Historical Congregational Arlene Schnitzer Concert Hall Native American Smith Memorial housing Church Society Church Shattuck Hall Neuberger Hall Cramer Hall Lincoln Hall Student & Community future mixed-use Student Union Museum

Center 1500 SW

building Park Avenue Portland’5 Centers for Annex Ladd Hotel the Arts New Heathman House Carriage Sovereign Hotel

Block 123456789101112

SOUTH PARK BLOCKS // master plan // draft preferred design design concept option review Highlights of what we heard from the design concept phase:

• Strong support for sustaining the historic tree canopy • Prioritize safety for park users and visitors using a over time by introducing more species and other variety of transportation modes methods • Emphasize the pedestrian experience while minimizing • Strong support for more social seating types, traﬃ c impacts connected gathering and event spaces, art representing diverse cultural histories and identities, • Balance addition of new features with respect for renovated playground and Smith Amphitheater historic elements of open space and linear rows of improvements trees

• Achieve more inclusive and accessible spaces • Desire to have more reasons to visit and stay in the throughout the South Park Blocks South Park Blocks instead of just moving through

• Desire to have more native planting in addition to lawn and ﬂ exible plaza spaces

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 Block 1 2 3 4 5 678910 11 Block 12

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 DRAFT PREFERRED DESIGN JACKSON COLLEGE HALL CLAY COLUMBIA JEFFERSON MADISON MAIN SALMON HARRISON MONTGOMERY MILL MARKET

LEGEND Building Footprint Green Loop Transition Zone Lawn Playground Safety Surfacing Roadway Intersecting Bikeways Native / Ornamental / Flower Bed Social Seating / Bench Pedestrian / Bike Paving Rose Lane Project Tree Canopy Small Scale Feature / Art Gathering Areas Streetcar Line ° Source: PortlandMaps Open Data, COP GIS, 2019 MHA Tree Inventory, 2019 MIG Fieldwork and Site Documentation, ESRI orthoimagery, 0250125 South_Park_Blocks_Base.dwg Feet

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 TREE SUCCESSION STRATEGY • Sustains the characteristic canopy coverage of mature trees throughout the park • Reﬂ ects the historic character of the grid-style tree arrangement of large form trees

• Enhances the resiliency of the park’s trees to issues like pests, disease and climate change

• Achieved over time as trees are identiﬁ ed for removal by Urban Forestry (dead, dying, or dangerous) and park improvements are implemented

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 TREE SUCCESSION STRATEGY - UNIVERSITY DISTRICT Existing Trees 2019

Block 1 23 4 56 JACKSON COLLEGE HALL HARRISON MONTGOMERY MILL MARKET 26 trees 14 trees 23 trees 21 trees 26 trees 24 trees Long-term Vision

Block 1 23 4 56

15 trees 21 trees 12 trees 19 trees 22 trees 14 trees

TREE PALETTE Summary: American Elm trees (Dutch elm disease resistant cultivar) • Elm trees or comparable species are present in a central row of plantings with breaks for or a comparable large stature species pathways and plazas. Large and medium stature trees (mix of up to three species per block planted symmetrically) • A variety of compatible deciduous trees (medium and large) are added to maintain the Evergreen trees visual presence of planted rows and increase the resiliency of the tree canopy. Building Footprint • Evergreen trees are introduced in the University District at key locations. Lawn Native / Ornamental / Flower Bed • Tree canopies will overlap at their edges to provide shade and enclosure similar to the current experience in the park. • Team will explore opportunity to add more trees to Blocks 1, 3, 4 and 6 as design is reﬁ ned. TREE SUCCESSION STRATEGY - CULTURAL DISTRICT Existing Trees 2019 MARKET CLAY COLUMBIA JEFFERSON MADISON MAIN SALMON 38 trees 43 trees 37 trees 23 trees 36 trees 21 trees Long-term Vision

Block 7 89101112

26 trees 27 trees 27 trees 24 trees 24 trees 23 trees

TREE PALETTE Summary:

American Elm trees (Dutch elm disease resistant cultivar) • Center planters are removed over time with a no tree replacement approach and ultimately or a comparable large stature species rebuilt as a Central Promenade. Today, these planters have both lawn, ornamental plants, Large and medium stature trees and trees. (mix of up to three species per block planted symmetrically) • Over time, 2nd and 4th rows of elms framing the promenade are provided more growing Building Footprint room and solar exposure using a new spacing standard resulting in healthier, stronger Lawn trees. A variety of compatible deciduous trees (medium and large) are added to the park’s Native / Ornamental / Flower Bed edges over time. • Tree canopies will overlap at their edges to provide shade and enclosure similar to the current experience of being in the South Park Blocks. TITLE 11 REQUIREMENTS For sites with between 8-24 trees, no more than 40% can be of one species. For sites with more than 24 trees, no more than 24% can be of one species. (this applies to trees being planted, not to existing trees)

The Master Plan proposes an exception to the species diversity requirement to allow the planting of Dutch elm disease resistant cultivars of American Elms along the park's central rows for historic preservation purposes. Species diversity will be added at the park block edges using a mix large and medium stature trees that have similar character attributes of elms.

Maintaining the dominant presence of American Elms along the Central Promenade is a recommendation of the Master Plan, but it also acknowledges Urban Forestry may prefer use of other large stature species in place of elms in the future. The plan will identify tree species that approximate the form and stature of American Elms (the 'next best' species) and provide the desired canopy character for the park's central rows. The replacement species is to be planted consistently along the central rows unless it becomes problematic, whereupon another species can be introduced.

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 TREE TYPES FOR THE SOUTH PARK BLOCKS

Large stature (50'-90' height, more than 50' mature spread) Broadleaf deciduous Medium stature (30'-50' height, 30'-50' mature spread) Broadleaf evergreen

Deciduous conifers

Evergreen conifers

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 OTHER TREE SUCCESSION STRATEGY RECOMMENDATIONS

Minimum Soil Volume Overhead Pruning Requirements

There is a direct relationship between a tree’s Wherever new trees are planted beneath the ultimate size (i.e., maximum crown spread) and the crown of existing trees, pruning may be needed to amount of soil volume provided provide overhead clearance and sunlight access. • Prevents asymmetrical growth (leaning) dƌĞĞƐEĞĞĚ^ŽŝůƚŽ'ƌŽǁ • Reduces susceptibility to sun scorch when adjacent trees are removed • Expands lifespan potential of trees

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 OTHER TREE SUCCESSION STRATEGY RECOMMENDATIONS

Improving Soil Growing Space For Trees Near Hardscape • Consider the use of suspended pavement with soil • Cells can minimize distance between trees and cells beneath as part of the project design budget. adjacent hardscape This is applicable where new paths are being built and where trees are being removed and replaced. • Trees planted under suspended pavement outperform others in size, color, and root growth • Cells support pavement and reduce soil compaction • Alternative - use structural soils to achieve the minimum soil volume needed, promote deep root growth, and reduce root-infrastructure conﬂ icts

SUSPENDED PAVEMENT SUSPENDED PAVEMENT YEAR 2 YEAR 8 SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 DRAFT PREFERRED DESIGN OVERVIEW

Time allows for a limited discussion of individual block designs

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 UNIVERSITY DISTRICT DRAFT PREFERRED DESIGN - OVERVIEW BLOCK 4 ALL BLOCKS Renovate Smith BLOCK 6 Design uses fewer, BLOCK 2 Amphitheater for more Space in lawn for large trees to provide New flexible flexibility and ADA rotating exhibits a similar canopy gathering plaza upgrades and/or new experience as today; permanent art Green Loop Removeable overhead design provides alignment diagonally canopy No mow lawn more sun in high use thru block following approach Green Loop is a shared areas that are today plaza construction overshaded use path Quiet block s Millar Library Peter W Stott Center & Viking Pavilion Park Plaza Simon I-405 SB Apartments Vue Apartment I-405 NB Benson Blackstone COLLEGE Residence Parkway Parkmill SW PARK WEST

Block 123 4 5 6 future mixed-use Maseeh Hall Smith Memorial building Shattuck Hall Cramer Hall Lincoln Hall

(Neuberger Hall) Student Union MARKET nter

JACKSON HALL HARRISON MONTGOMERY MILL udent & Community udent & Community ative American ative e t BLOCK 1 BLOCK 3 BLOCK 5 Establish a new gateway Quiet block Add native and New play experience and Green Loop shared adaptive plantings gathering area use path along Mill Addition of conifers at All door boarding at south end streetcar BLOCK 1 - PSU PLAYGROUND AND GATHERING AREA Play area w/ accessible safety surfacing

Artistic/sculptural play

COLLEGE feature

PARK AVE WEST Open lawn area Special paving/ boulder scramble

Gathering area at existing mature elm

Native conifers and low ground cover PARK AVE EAST

New connection to NASCC JACKSON Add more native planting where there is lawn SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCK 1 - PSU PLAYGROUND AND GATHERING AREA

SW Hall St SW Mill St SW Clay St SW Main St SW Market St SW Jackson StSW College St SW Harrison St SW Salmon St SW ColumbiaSW St Jefferson SWSt Madison St SW Montgomery St AND COMMUNITY CENTER NATIVE AMERICAN STUDENT AMERICAN NATIVE

SIDEWALK JACKSON PATH GATHERING AREA PATH PLAY AREA PATH COLLEGE STREET STREET

New conifers at the south end Gathering area Retain turf areas under of the playground with low incorporates mature tree canopy for seating native understory plantings elm and unstructured play

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCK 4 - SMITH PLAZA

Green Loop shared use path along west side of block

Seat wall

Lawn Secondary gathering space with ﬂ exible seating Amphitheater seating

Large gathering space with ﬂ exible seating Sloped planting bed with native/adaptive plantings Removable, tensile canopy structure MONTGOMERY HARRISON

Y Covered outdoor study spaces adjacent to building

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCK 4 - SMITH PLAZA

SW Hall St SW Mill St SW Clay St SW Main St SW Market St SW Jackson StSW College St SW Harrison St SW Salmon St SW ColumbiaSW St Jefferson SWSt Madison St 200’ SW Montgomery St PP&R SMITH MEMORIAL STUDNET UNION BLACKSTONE RESIDENCE HALL

SHARED USE PATH PATH SMITH PLAZA PATH

SW PARK AVE WEST SW PARK AVE EAST

A variety of compatible deciduous trees Elm trees or comparable species are present (medium and large) are added to maintain the in a central row of plantings with breaks for visual presence of planted rows and increase pathways and plazas the resiliency of the tree canopy

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCK 12 CULTURAL DISTRICT DRAFT PREFERRED DESIGN - Gateway art at Salmon OVERVIEW BLOCK 10 Street Links to new Madison Art installed on Main ALL BLOCKS Plaza gathering space Street median Central planter BLOCK 8 and Rothko Pavilion Shemanski Square removed over time Neighborhood block to improve growing Extended seating along better linked to Blocks Social seating space for existing promenade 10-11 with promenade and new trees - area Space for interactive Roosevelt statue and Green Loop as buffered rebuilt as Central art along central roses in east and west separated bikeway Promenade promenade planters remain along Park Ave West future Rothko Portland Pavilion Masonic future Art Museum Temple mixed-use or PAM Square Manor Southpark Jeanne Church Building Parkway

building Hotel Apartments Lutheran Christ, Scientist St. James Sixth of Church Apartments Apartment Cumberland Roosevelt ARK WEST SW PA

Arlington Club

SW PAR Block 789 101112 planned First Oregon First affordable Christian Historical Congregational Arlene Schnitzer housing Church Society Church Concert Hall Portland’5 coln Hall 1500 SW Museum

AIN

ALMON

EFFERSON Centers for

Park Avenue Park MARKET CLAY COLUMBIA J M S MADISON l ign e the Arts e e BLOCK 7 BLOCK 9 BLOCK 11 Central pedestrian promenade Quiet block Links to new Madison with social seating Design accommodates Plaza gathering space Design accommodates 'Peace Chant' New interactive artwork at 'Shadow of the Elm' Green Loop as buffered Madison Plaza space Green Loop as buffered separated bikeway Lincoln statue remains separated bikeway BLOCK 8 - NEIGHBORHOOD BLOCK Interactive art or play feature

Social seating - fl exible seating Future Green Loop separated u confi gurations for groups and bikeway with planting buff er A A

C individuals

Retain existing benches for places of solitude Raised median (potential planting at raised median) Communal tables Interactive art or play feature New promenade paving - compatible but distinguishable from historic paving Future bike lane on Columbia St Raised median (PBOT approved plan)

Maintain elms in 2nd and 4th Interactive art of play feature rows COLUMBIA CLAY

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCK 8 - NEIGHBORHOOD BLOCK

SW Hall St SW Mill St SW Clay St SW Main St SW Market St SW Jackson StSW College St SW Harrison St SW Salmon St SW ColumbiaSW St Jefferson SWSt Madison St SW Montgomery St SW COLUMBIA ST SW COLUMBIA SW CLAY ST SW CLAY

PATHINTERACTIVE SOCIAL SEATING INTERACTIVE SOCIAL SEATINGINTERACTIVE PATH FEATURE FEATURE FEATURE SEPARATED BIKEWAY

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCKS 10 & 11 // CULTURAL DISTRICT SQUARES Green Loop bikeway Interactive Bollards with planting buﬀ er social seating Ornamental planters at corners

Future Rose Lane Project bus lane (PBOT approved plan)

Roosevelt Lincoln

N MAIN MADISON JEFFERSON

O Special paving at Long benches w/ Flexible Overhead sculpture or plaza nodes arm rests programmable plaza lighting as ‘place-making’ at closed street feature

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCKS 10 & 11 // CULTURAL DISTRICT SQUARES ROOSEVELT SQUARE

SW Hall St SW Mill St SW Clay St SW Main St SW Market St SW Jackson StSW College St SW Harrison St SW Salmon St SW ColumbiaSW St Jefferson SWSt Madison St SW Montgomery St 60’ 80’ 60’ R.O.W. PP&R R.O.W.

P P PORTLAND PORTLAND MUSEUM ART OREGON HISTORICAL SOCIETY

SIDEWALK SEPARATED BIKEWAY PEDESTRIAN SIDEWALK SIDEWALK

SW PARK AVE WEST SW PARK AVE EAST

Medium stature trees add species Large stature trees line the diversity to the park, provide shade along pedestrian promenade in the the Green Loop, and establish continuous Cultural District canopy coverage SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 BLOCKS 10 & 11 // CULTURAL DISTRICT SQUARES MADISON STREET PLAZA

SIDEWALK SIDEWALK DROP OFF SEPARATED BIKEWAY PEDESTRIAN DROP OFF PLAZA SW PARK AVE WEST SW PARK AVE EAST AT SW MADISON STREET

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 DISCUSSION JACKSON COLLEGE HALL CLAY COLUMBIA JEFFERSON MADISON MAIN SALMON HARRISON MONTGOMERY MILL MARKET

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2 Questions for the Commissioners to help refine the Draft Preferred Design:

1. Can you share thoughts on the balance between historic preservation and tree diversity?

2. Can the Commission support the need for an exception to the Title 11 diversity requirement as it applies to the South Park Blocks for historic preservation purposes and the park's national historic eligibility?

3. Can the Commission comment on the proposed removal of the central planter in the Cultural District? This is achieved over time with a no replacement approach for mature trees.

4. Is there feedback on the proposed location of evergreens on Block 1 to add diversity in a location where it poses less conﬂ ict with the park's historic character?

5. What other aspects of the Tree Succession Strategy should be teased out more for the Master Plan?

SOUTH PARK BLOCKS // master plan // draft preferred design UFC Briefing #2