RE-KNITTING OAKLAND
A STUDY OF I-980
INTRODUCTION Community Division.
Public Health Inequity.
Environmental Inequity.
Defining the Study Area CALIFORNIA
OAKLAND
THE SITE: I-980 West G
rand
Ave
CA-24
I-80
I-580
rso nS
I-980
t.
Market S
t.
CA-17
Jeff e
I-880
4th S
t
Project Description
Project Rationale
History of I-980
Project Benefits
I-980 is underutilized
Reconnect West Oakland to Downtown
The freeway separates West Oakland from Downtown both physically and psychologically
Improve the health and well-being of Oakland residents
I-980 fails to serve local residents
New publicly-owned land for development
Demographic Data Existing Site Condition Environmental Issues Freeway Analysis Transit Analysis and Street Life Pedestrian Experience
Prime location for uses to address key issues: housing, job creation, public transit infrastructure
Precedent Studies
$
Increase land value and tax revenue
Proposals for the Future Next Steps
$
Attract new investment
Improve walking, biking, and public transit
Current Site Condition
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
THE HISTORY OF 1-980 Before I-980: Oakland Neighborhoods 1889 - 1951 1889 1902-1903
1912-1951
Jefferson Street
eet et Str M ar k
Eighteenth Street
Seventh Street Sixth Street Fifth Street
Currently I-980
Currently I-980
Uptown Oakland
Old Oakland
Currently I-980
Uptown Oakland
Old Oakland
Uptown Oakland
Old Oakland
I-980 Development Timeline
Construction begins
1998
1989
1968
West Oakland redlined as “high-risk”
Movement to reimagine I-980 area
1985
1976
1949 1936
1930
Loma Prieta: I-880 collapses, I-980 used as central freeway
Federal funds secured, interstate designation
2014
Urban Renewal: “Blight” Remediation
Oakland c. 1930
I-980 completed
I-880 reopens, I-980 reduced to original use
2015
1980
1960
Grove-Shafter Freeway plan is proposed, features second trans-bay element.
1946
Catherine Wagner (1978)
Takeaways
The Cost of Building I-980
42 acres
503 houses
155 trees
4 churches
22 businesses
142 employees
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
EXISTING SITE CONDITION: Demographic Data Population Density
African American
Census Tract 4028
Census Tract 4027
Census Tract 4024
Race and Ethnicity 1 Project Site
White
African American 46% White 27% Asian 24% Two or more races 2% American Indian 1% Other 1%
Census Tract 4026
Census Tract 4025
Census Tract 4031
Total Population:
4,579
(Census Tracts 4026, 4027) High to Low
High to Low
Asian
Other Races
71% 11% 9% 6% 2,5% 0.5%
High to Low
The Site
5,127
4,579
Downtown Oakland
2,538
City of Oakland
(Census Tracts 4024, 4025)
$35,996
High to Low
$72,112
Age Distribution
Poverty by Age
Under 18 12% or 305 people
Families in Poverty
Working Age in Poverty 25% below poverty level
Under 5 2% or 56 people
75% above poverty level
2,538
5 Alameda County 46% 27% 12% 8% 6% 1%
Total Population
Total Population
397,011
1,535,248
Aging in Poverty
Under 18 in Poverty
34% below
25% below
poverty level
66% above
43% below
poverty level
75% above
poverty level
poverty level
Rent vs. Home Ownership
poverty level
445
1651 Total Housing Units
497
57% above poverty level
Land Value Analysis 1 Project
2 West
1,421
2,009
2,732
942
1,572
2,146
479
437
586
12.9%
7.9%
8.2%
$400K
$310K
$550K
Site
582
(Census Tracts 4028, 4031)
Working Age (18-64) 70% or 1,790 people
Aging (65+) 16% or 443 people
990
5,127
39% 27% 16% 11% 6% 1%
397,011 1,535,248 $52,583
Total Population
4 City of Oakland
Alameda County
High to Low
$23,856 $22,465
35% 29% 24% 7% 4% 1%
Total Population
Population and Median Income West Oakland
3 Downtown Oakland
2 West Oakland
Oakland
3 Downtown Oakland
495 Renter Occupied Units
High to Low
Owner Occupied Units
152
279
190 Vacancy Percentages
265
200
396
<200 K
400 - 600 K
800 K - 1 mill.
High to Low
200 <200- 400 K K
600 400 -- 800 600 K K
> 1 mill. 800 K - 1 mill.
Takeaways
> 1from mill.2013 Census Data. 200 - 400 K All data shown 600 on - 800 this K board is gathered
Median House Price
These demographic statistics show how I-980 divides Oakland along racial and class lines and how its redesign could begin to heal the rift it embodies. 4,579 People
$22,465
1,421 Units
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
EXISTING SITE CONDITION Existing Landuse
Community Assets
Food Access
Ave d n a r WG
Castro Street
Brush Street
t Stree t e k r a M
Jefferson Street
18th Street
14th Street
Smart & Final
11th Street
People’s Grocery
Old Oakland Farmers Market
4th Street
Residential
Mixed Use
Industrial
Religious Institution
Social Services
Commercial
Park
Residential, Commercial & Light Industrial
Housing Services
Cultural Institution/Landmark
Religious Institution
Social Services
14th Street Section from Jefferson Street to Market Street Cultural Institution/ Landmark
West Street
Market Street
410’
40’
230’
Standard Food Access Point and Buffer
Housing Services
Castro Street
46’
West Oakland
Freeway 3 lane 440’
I-980
Green Spaces
Standard Food Access = 1/4 mile radius from food access point
Grocery Store
Brush Street Off-ramp On-ramp 2 lane 2 lane
90’
Grocery Store
Parking Lots
Freeway 2 lane
On-ramp 2 lane
Jefferson Street
MLK Jr. Way
Off-ramp 2 lane 45’
320’
323’
55’
56’
Downtown Oakland Public Land vs. Private Land
Ave d n a r WG
Castro Street
Brush Street
reet t S t e k r Ma
18th Street
11th Street
4th Street
Parks
Trees Trees
Parking Lots
Public Land
Private Land
Takeaways
Limited Social Services & Parks
The current services, retail and housing in the site do not meet the needs of residents and consumers. By rethinking I-980, the city could promote access to services, healthy food, and other community resources.
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
EXISTING SITE CONDITION: Environmental Issues Particulate Matter Score
Asthma Score
Schools in the Area
76-80%
99.6%
76-80%
99.7%
81-85%
99.8% 61-65%
100% 100%
31-35% % Percentile Ranking in State of California
% Percentile Ranking in State of California
Source: OEHHA CalEnviroscreen 2.0
School Source: Google Maps
Source: OEHHA CalEnviroscreen 2.0
Population Growth West Oakland
2013
Oakland
Alameda County
70%
West Oakland
2060
Oakland
Alameda County
growth 5,127
397,011
8,711*
1,535,248
674,566*
*Calculated growth proportionate to Alameda County
2,195,999 Source: U.S. Census Bureau
Sea Level Rise, Flood Risk, and Liquefaction
Area of Sea Level Rise Risk: 6 feet in 100 years Shoreline
West Oakland
Stormwater Runoff
I-980
1cm : 30m Source: National Oceanic and Atmospheric Administration
Area at risk of Liquefaction
West Oakland
Shoreline
I-980
1cm : 30m Source: City of Oakland
Impermeable Surface
Source: City of Oakland
Takeaways
Issues turned into opportunities
Permeable Surface
Redesigning I-980 would mitigate current environmental issues and prepare for projected population growth and anticipated natural disasters.
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
FREEWAY ANALYSIS I-980 Right-of-way Widths Comparison
1 29th Street Section I-580 MLK Jr. Way
I-980 I-980Freeway FreewayPlan Plan
I-980
Explanation Explanation
Off-ramp 2 lane
Off-ramp 2 lane
Freeway 3 lane
Freeway 3 lane
Freeway 3 lane
BART
Freeway 2 lane
Off-ramp 3 lane
On-ramp 1 lane
390’ 390’ 22 lanes
I-980 Right-of-way Widths
I-980 Right-of-way Widths
1
2 West Grand Avenue Section
2
Northgate Ave
MLK Jr. Way
San Pablo Street
I-980 I-980Freeway FreewayPlan Plan Freeway 5 lane
Explanation Explanation
Freeway 5 lane
170’ 170’ 10 lanes
I-980 Right-of-way Widths
I-980 Right-of-way Widths
3
3 14th Street Section I-880 Castro Street
Brush Street
I-980 Freeway I-980 FreewayPlan Plan Explanation Explanation
Off-ramp 2 lane
On-ramp 2 lane
I-980 Right-of-way Widths
350,000
350,000
Eastsh
y ore Fw
80
200,000
CA-24
Average Daily Traffic
300,000
580
250,000
I-58 0 Mac Arth ur F wy
80
150,000
200,000
100,000
200,000
150,000 50,000
150,000
980
580
Gro ve Sh af te r
100,000
100,000
18th St
-
14th St
50,000
I-98 0
I-880 Ni m
West Oakland
Fw
y
itz Fw y
880
80
5 jct.with I-
41.9%
250,000
Emeryville
ge Bay Brid 0 I-8
Percent Utilization of I-980’s Capacity
250,000
350,000
24
Most and Least Used On/Off Ramps by ADT
300,000
300,000
y
Off-ramp 2 lane
13 lanes
Traffic Volume Over Time
I-80
te haf S ve Gro
w rF
On-ramp 2 lane
440’ 440’
I-980 Right-of-way Widths
Downtown Oakland Freeway Traffic 2014
Freeway 2 lane
Freeway 3 lane
Downtown
50,000
3
22.3% 27.6%
-
Port I- 8 80
N
I-980: 14th St
it z
3
ter Tub es
i
m
Fw
y
Posey & W ebs
Alameda Average Annual Daily Vehicles
Year
880
I-980: 14th St
MacArthur Fwy I-580: Oakland Ave Nimitz Fwy I-880: Jackson/Broadway Off-ramp Traffic
0k
30k
60k
90k
120k
150k
180k
210k
240k
270k
300k
MacArthur Fwy I-580: Oakland Ave Nimitz Fwy I-880: Jackson/Broadway
Takeaways
Estimated 1-hour Peak Capacity: 18,869 cars Highest Recorded Peak Hour: 7,900 cars Maximum Capacity: 41.9%
On-ramp Traffic
CA-24 JCT I-80 Eastshore Powell St
I-980: 14th St
CA-24 JCT
Range of ADT Counts:
1,400-31,500 cars
Source: CalTrans (Data), Brian Stokle (Analysis)
I-80 Eastshore Powell St
MacArthur Fwy I-580: Oakland Ave
Underutilized Freeway I-980
I-980 has the capacity to accept much more traffic than it does currently and canNimitz thusFwy be I-880: viewed as underutilized. Jackson/Broadway CA-24 JCT
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
TRANSIT ANALYSIS & STREET LIFE
Transit Map
How people get to the area
Where people come from EL CERRITO 1
ROCKRIDGE 1
Commuting Modes 7 3 2 2 1 +
+
1
+
1
+
1 0
DOWNTOWN 12
Daily Use Modes 6 3
WEST OAKLAND 2
OLD OAKLAND 1 +
+
IRVINE 1
ALAMEDA 3
+
3
+
3
+
1
+
1
+
1 1
Freeway
BART Lane
Bus Routes
Bike Lane
BART Stop
0 Source: City of Oakland
Source: Re-Knitting Oakland Project
Source: Re-Knitting Oakland Project
Source: Survey Results
14th Street and Castro Street Panorama
Street Hierarchy
Traffic Count Study 1
1
2
14th Street
3
4
12th Street
5
3
5
4 lanes
2 lanes
# Location of traffic counts
Brush and 12th Street
11th Street
4
6 lanes
Castro and 14th Street
Castro Street
Brush Street
2
Brush and 14th Street
Castro and 12th Street
Brush and 11th Street
96
100
20 1,368
56 1,416
60
100
22 1,216
56 1,416
44
36
16 2,304
8 1,688
36
56
4 1,300
12 1,280
20
60
8 2,060
4 1,968
Conducted on two weekdays (7:30-8:30 AM) & (4:30-5:30 PM)
Takeaways The presence of I-980 makes the area more car-centric. However, our traffic counts reflect latent demand for safe, pedestrian and bike friendly infrastructure. Need for “complete streets” Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
THE PEDESTRIAN EXPERIENCE Noise Map
Cognitive Mapping Exercise Results
Qualitative Survey METHOD 1: Three posters were installed along an overpass with questions about the pedestrian experience.
ve A d n W Gra
METHOD 2: Pedestrians traversing the I-980 corridor were invited to complete a survey. Items included questions about transit, perceptions of the area, and a neighborhood-mapping exercise. (N=21).
Castro Street
18th Street
n
Sa
et e r t S t e Mark
21th Street
o bl Pa e Av
78.5 82 78.5
Brush Street
67 12th Street
“Accidents happen all the time” “[The] highway divides the city.”
81
84
Broadway
Clay Street
I-980
How does this highway affect you?
74
81.5
11th Street
76
I-880
What would you rather see here?
100 dB
90 dB
80 dB
70 dB
0 dB
All data reported by survey participants. Participants were asked to define their neighborhood on a map.
“[The] corner at Castro & 14th is VERY dangerous for pedestrians - can something be done?”
50 dB
How could this space better serve your needs?
40 dB
“A representation of a positive Oakland (all of us!)”
30 dB
4th Street
Sights Along the Freeway The presence of trash, graffiti and poorly-lit areas create an unwelcoming environment.
Walkways are wide but uninteresting for pedestrians. Crosswalks do not always connect. 78.5 82 78.5 67 81.5
76 74
84
81
busy
unsafe
dangerous
polluted loud
beautiful open
remote
dark
scary
warm
convenient
dirty
quiet
drab
boring
uninviting
drugs
graffiti
industrious
homeless
disconnected
walkable
Perceptions of I-980
deserted
Measured in dBu between 5:30-6:30 PM
safe
“[The] highway divides the city.”
Takeaways I-980 is perceived as a major dividing line by local residents. Survey participants reported the overpasses connecting West Oakland and Downtown to be uninviting, polluted, and dangerous. Area not suited for pedestrians Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
THREE CASE STUDIES San Francisco, CA
Milwaukee, WI
Oakland, CA
Central Freeway / Octavia Boulevard
Park East Freeway / McKinley Avenue
Cypress Freeway / Mandela Parkway
2000
2011
1987
2014
1968
2014
Traffic Volume 30,000 car reduction
35,400 car reduction
88,000 car reduction
7 acres recovered
26 acres recovered
1000 housing units added
Land for Development (since 2006)
Economic Development and Investment $557K increase in avg. condo price (Hayes Valley,
$340M investment in local real estate projects (as of 2007)
1996-2006)
LEGEND
=10,000 cars
=5 acres
=500 housing units
=$100,000
$90M Contracts awarded to local businesses =$100,000,000
Re-envisioning the Freeway “...and chaos was predicted. That didn't happen, either. ” - SF Chronicle (1996)
“Access to downtown Milwaukee has actually been improved” - Urban Milwaukee (2009)
“Freeway had walled off the entire neighborhood... with concrete, fumes and ‘wrong-side-of -the-line’ stigma.” - SF Chronicle (2014)
Case Study Project Outcomes
Adequate traffic capacity
Nearby streets receive increased traffic during peak hours
Adequate traffic capacity
Increased travel times for some motorists
Community involvement and local job creation
Rezoning may adversely impact local job market by eliminating Industry
Improved pedestrian and bicycle amenities
Design issues at some intersections
Increased property values and tax revenue
Diminished parking supply
Improved pedestrian and bicycle amenities
Underutilized by pedestrians
Increased neighborhood investment/development
Displacement of businesses and longtime residents
Increased neighborhood investment/development
Project did not provide low income housing
Increased neighborhood investment/development
Development may cause gentrification
Complete street serves multi-modal needs
New housing developments emerged within site
Green space created on site of former freeway
Takeaways These case studies illustrate how future projects can encourage substantial investment in the area and support local businesses. Boulevards can provide adequate traffic capacity and meet the needs of cars, pedestrians, and cyclists. Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
“ECO-DISTRICT” FRAMEWORK FOR OUR NEW PROPOSAL General Goals for the Development Area
Sustainable Land Use Mixed Use Better Social Services Transit Oriented Development Urban Agriculture
Jardin Éphemere Street, PARIS
Wauwatosa, Wisconsin
Sustainable Urban Design Connectivity Walkable Streets Pedestrian Oriented Buildings Diverse and Affordable Housing Parks and Public Spaces
Greenwich Village, NYC
Greenwich Village, NYC
Green Neighborhood Infrastructure Energy Stormwater Waste-water Recycling Sustainable Landscape Waste-recycling
Energy- Solar PV
Stormwater- Raingarden
Why Eco- District?
"WE ARE ENTERING A PEAK OIL, PEAK WATER WORLD THAT IS GLOBALLY INTERCONNECTED YET ECOLOGICALLY IMPOVERISHED." (Edward O. Wilson)
Concept Diagram:Re-Knitting Oakland
Proposed Land Use Map LEED for Neighborhood Development
Ave d n a r WG
Total Points**
*80
Smart Location and Linkage
22
Out of a possible 28 points
Neighborhood Pattern and Design
17th Street
34
Out of a possible 41 points
Green Infrastructure 24 and Buildings Out of a possible 31 points
Castro Street
Brush Street
14th Street
*Out of a possible 100 Points + 10 bonus points **Certified 40+ points, Silver 50+ points, Gold 60+ points, Platinum 80+ points
11th Street
Residential
Mixed Use
Industrial
Commercial
Park
Residential, Commercial & Light Industrial
Innovation & Design Process
0
Regional Priority Credit
0
Takeaways
Create 21 new net acres, 11 new blocks, & 6 new connected streets
Using the LEED ND checklist to create target goals for development, we hope to create a sustainable design that features sustainable land use, sustainable urban design, & green neighborhood infrastructure.
Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
“ECO-DISTRICT” FRAMEWORK FOR OUR NEW PROPOSAL
Proposed Building Footprint Map Ave d n a r WG
Design Elements
3 Parks: Public Green Space Surrounding the Pedestrian
1 Mixed Use Buildings: Residential + Commercial
Street (Nearby buildings could have commercial spaces that serve park users)
(grocery store, gym, childcare, shopping complex, etc.)
2 Inclusionary Affordable Housing
4 Pedestrian and Bicycles Street: A special street for pedestrian and bicycles
1
Source: Salem Essex Street Pedestrian Mall
4 2 3 5 6
5 Worker Cooperative: Vocational Institutions 6 Public Garden: Urban Agriculture ADT Estimate ADT Number 73,000 of Lanes 5
ADT Number 60,000 of Lanes 8
Section
= 20,000 cars = 2 Lanes I-980 Between Grand Ave and I-880
Proposed: Castro St and Brush St
Vehicular Access
Garage
BART ?
Brush Street
60’
380’
60’
Castro Street
14th Street Section Pedestrian Access
Transit Access Ave d n a r WG
Ave d n a r WG
Frank H. Ogawa Park Oakland City Center BART
Existing Streets
Takeaways
Existing Streets
Proposed Streets
Proposed Streets
I-880
I-880
I-880 Pedestrian and Bicycle Streets
Parks
Bus Routes
Pedestrian Streets
Bus Routes
BART
Parks
Proposed BART Station
Pedestrian Streets
Our plan adequetly accounts for the traffic that will be diverted by the closure of I-980. It will also increase walkability, increase green space, and urban agriculture. Traffic diversion & more green space Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015
RE-KNITTING OAKLAND
A STUDY OF I-980
CONCLUSIONS & NEXT STEPS I-980 at Present and Proposal
Next Steps
Evaluation
Engagement
Planning
In-depth Traffic Study
Public informational meetings
Identify stakeholders
Cost Analysis
Community workshops
Environmental Impact Assessment
Collaboration with local Community Development Corporations
Consider connections with existing policies Review plan in context of local, regional, and global initatives
BeneďŹ ts of a Redesigned I-980 Public Health Equity
Access for local residents
Environmental Integrity
Community Cohesion
2 Parks
2 Pedestrian Paths
21 Acres
630 Housing Units
6 Connecting Streets
11 Blocks
Job Opportunities
Complete Streets
4 Commercial Areas
Safe, healthy transportation
New development based on sustainable strategies
Takeaways
Redesigning the space occupied by I-980 presents an opportunity to re-knit a divided city. Aysegul Akturk | Alex Fox | Ivana Rosas | Carrie Sauer | Manali Sheth || Nicola Szibbo, PhD | Sonia-Lynn Abenojar | Justin Kearnan | Eric Anderson
[IN]CITY 2015