CH2M Hill: Onondaga Co green stormwater solutions
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Transcript of CH2M Hill: Onondaga Co green stormwater solutions
Onondaga County, NY ~ Balanced Approach
Syracuse becomes
one of first ten EPA
Green Cities
County Executive Mahoney Announces “Project 50!”
“Onondaga County will construct fifty distinct green
infrastructure projects to return rain water and snow
melt to the ground instead of our sewer system.”Joanne M. Mahoney, State of the County Address,
March 1, 2011
CH2M Hill
Onondaga County, NY
Balanced Approach>165 green projects completed100,000,000 gallons of runoff reduction
Consent Judgment to clean up “America’s most polluted lake”
Public opposition increased cost and delayed implementation
Balanced approach; given 1 year pause to develop new control plan
Green Infrastructure to front of program,
smarter gray program: Extended compliance schedule by 5 years
Saving over $20M+ in capital cost while reducing life cycle
Community sees the benefits to the lake, tributaries, and public assets
CH2M Hill
Onondaga County, NYGreen Streets Installed Adjacent To No-Standing Lanes
Add Aesthetic Value Without Impacting Traffic or Pedestrians
BEFORE: Stormwater enters catch
basins and is directly connected to
sewer
PROPOSED (Photo Simulation):
Stormwater is diverted to Green
Streets and only overflows to
sewer when necessary
AFTER (Actual Photo): Project
has been adopted* by local
business to pick up litter, weed,
and mulch (provided by County)
Adopt-A-GI Project program was created based on common Adopt-A-Highway format
CH2M Hill
Onondaga County, NYGreen Streets Benefits
Award
Winning
Water Street
Green
Gateway
Project
Completely new City Street (City paid for asphalt mill and
paving, County program paid for all other work)
Before
CH2M Hill
Onondaga County, NYGreen Streets Benefits – Typical Residential
Stone
Trench
New City Street
Storage and Infiltration Trench no longer visible
CH2M Hill
Onondaga County, NYGreen Streets Benefits
Otisco Street
Residential Green Street
with Bioswale
• New Curbs, asphalt,
and sidewalks
• Traffic Calming
(Bump Outs)
• Added green space
CH2M Hill
Onondaga County, NYGreen Streets Benefits
West Onondaga Street
Commercial District
Before
CH2M Hill
Onondaga County, NYBenefits to City Streets
West Onondaga Street
Commercial District
• New Curbs, Sidewalk, Asphalt
• Improved Traffic Pattern
• Added Green Spaces Before
CH2M Hill
Onondaga County, NYGreen Streets - Commercial Districts
Westcott Street Commercial District
• New Curbs, Sidewalks, and Asphalt
• Improved Pedestrian Experience
Before
CH2M Hill
Onondaga County, NY
Vacant Lot Challenge
701 Oswego
Street Vacant
Lot Project
The CSO Abatement Program has utilized
multiple vacant lots in the City to manage
stormwater runoff while investing in new curbs,
sidewalks, and putting these properties to
beneficial use as nurseries and gardens
Before
CH2M Hill
Onondaga County, NY
Utilizing Park Space
Leavenworth Park Bio-infiltration SystemProject included new roadside granite curbs and
carriage walk; plantings compliment park setting
(County program has also resurfaced basketball courts,
parking lots, and supported other park amenities)
Spring
Summer Bloom
CH2M Hill
Green Improvement FundA Public Private Partnership Grant Program
Incentivizing GI on Private Property 130 Applications Submitted (Mar 2014) 59 Projects Completed
(27 in 2013) 25 million gallons of
Stormwater Runoff capturedfor $6.1 million
21.5 million more gallons contracted Average rate = $0.25/gal for program
The County also has a program that has distributed over 1,000 free Rain Barrels, and has planted over 2,500 street trees (8,500 planned)
Monroe Building
Green Roof
CH2M Hill
Onondaga County, NYBenefits to County Facilities
Surface Parking Lot next to
Everson Art MuseumPreviously a puddle-ridden gravel lot, new
standard asphalt pavement drains to Bio-
retention designed to store, slowly infiltrate,
and provide evapotranspiration of runoff
due to poorly draining soils; large storm
events overflow to sewer
Vegetated
Bio-retention
System, including
90 new Trees
Before
CH2M Hill
Onondaga County, NYBenefits to County Facilities
OnCenter Convention Center
290 Parking Space Surface Lot(porous asphalt perimeter with subsurface
storage and infiltration system)
Lot had many potholes and significant cracking; resurfacing
paid for through CSO program. Improved safety through
smarter layout, LED lighting, as well as electric vehicle
charging station (separate funding source)
Before
CH2M Hill
Onondaga County, NYBenefits to County Facilities
OnCenter Convention Center
66,000 Square Foot Green Roof
New 30 year roof installed under CSO program;
study underway quantifying heating and cooling
benefits in addition to runoff reduction
Before
CH2M Hill