Marion Street Green Infrastructure Project...2018/06/20 · Whittier Neighborhood Community Meeting...
Transcript of Marion Street Green Infrastructure Project...2018/06/20 · Whittier Neighborhood Community Meeting...
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Marion StreetGreen Infrastructure ProjectWhittier Neighborhood Community MeetingJune 20, 2018
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Agenda
• Marion Street stormwater project• Water quality and green infrastructure• Marion Street green infrastructure project
• 29th and 30th Ave• 25th Ave
• Discussion
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Existing Conditions
July 11, 2011
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EXIS
TIN
G C
ON
DIT
ION
S (F
LO 2
D)
Estim
ated
max
imum
flow
dep
ths
for t
he 1
00-y
ear s
torm
prio
r to
the
cons
truc
tion
of th
e 33
rdSt
reet
Out
fall
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PRO
POSE
D C
ON
DIT
ION
S (F
LO 2
D)
Estim
ated
max
imum
flow
dep
ths
for t
he 1
00-y
ear s
torm
afte
r the
con
stru
ctio
n of
the
33rd
Stre
et O
utfa
ll
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
33RD STREET OUTFALL PROJECT
1 2 3 4
MARION STREET SYSTEM
Phases
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Marion Street Project:Increase Storm Drain Capacity
3x Capacity
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
SURFACE DRAINAGE IMPROVEMENTS
PRE-IMPROVEMENT(example)
POST-IMPROVEMENT(example)
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
PHASES & SCHEDULE
Phase 1:• MLK Blvd to 26th Ave• Fall 2019
Phase 2:• 26th Ave to 21st Ave & Downing St• Summer 2020
Outreach & Next Steps:• 2019: Will be back to talk community about
construction schedule and impacts once have contractor on board
1
2
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Comprehensive Stormwater Management
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Denver’s Water Quality Problem
Over 1200 Total Outfalls• 300+ Outfalls into Cherry Creek
• 300+ Outfalls into South Platte
13% of Denver’s 98,900+ acres receive water quality treatment2013 Matrix Report
Denver’s Streams:
0/10 meet recreation standards7/10 suitable for aquatic life2016 Water Quality Report, Denver Dept. of Environmental Health
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
City’s New Approach to Stormwater Management
Grey Infrastructure
Community Engagement
Green Infrastructure
Strategic Planning
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Green Infrastructure• Natural or built systems that use
vegetation and soils to manage stormwater runoff
• More resilient approach than relying on gray alone
• Numerous benefits
• Varying scales
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Benefits of Green Infrastructure• Improve water quality
• Reduce flood risks
• Reduce Urban Heat Island effect
• Improve air quality
• Absorb local carbon emissions
• Improve public health outcomes• Increase physical activity
• Improve mental wellbeing
• Reduce stress
• Lower traffic speeds and reduce injury
crashes
• Improve property values
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Sub/Regional Scale Green Infrastructure
Site-Scale Green Infrastructure
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Denver’s Residential Green Infrastructure
Lowell and Evans 16th Street (Upper Montclair Basin)
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Opportunity:Green Infrastructure on Marion Street• Implement GI on Marion Street as part of pipe project• Cost-efficient
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Public Engagement• Saturday, April 14: Meeting with Marion St. residents
• Wednesday, April 18: Whittier Community Meeting• ~20 attendees• Presentation + Table-top exercise
• Tuesday, May 22: Meeting with Principal Palmer at Whittier K-8
• Key themes:• Cut-through traffic from Downing
• Traffic calming• Safer pedestrian crossings
• Safety concerns at 25th Ave. and Marion St. • Maintenance & inspections• Make Marion Street greener
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29th
& 30
thAv
e In
ters
ectio
ns
• Consistent design• Traffic calming• Minimal ROW constraints• Surface Improvements
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29th
& 30
thAv
e In
ters
ectio
ns
• Consistent design• Traffic calming• Minimal ROW constraints• Surface Improvements
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29th and 30th
Designs
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
25th Ave Intersection
• Central concern: Safety for students
• Partners in finding a solution:• Marion St. Stormwater Project Team• DPW Transportation & Mobility• Whittier K-8 Community
• August 24: Whittier K-8 “Back to School Night”
• Interested in this conversation? Make sure to check “25th and Marion” box on sign-in sheet
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Next Steps
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Planter Design and Education Event• What: Join the Denver Botanic Garden Horticulture Outreach
Manager and the Marion Green Infrastructure Project Team to:• learn about which low maintenance, low water, quick growing plants
are appropriate for Marion Street green infrastructure facilities• provide feedback about vegetation design for the facilities
• When: Morning, July 28th
• Where: Corner of Marion St. and 30th Ave.
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Marion Street Green Infrastructure ProjectWhittier Neighborhood Community Meeting | June 20, 2018
Contact
Stormwater Improvements:Steve ChoiSenior [email protected]
Green Infrastructure:Ashlee GraceSenior Water Quality [email protected]