9/3/2015 1 MUNICIPAL CLIMATE ADAPTATION AND CAPITAL PLANNING APWA National Congress September 2015 Mani Rajendran P. Eng. Project Manager, Transportation Design – Region of Durham, ON Jennifer E. Lawson, CSM Water Quality Manager – City of Ann Arbor, MI Brandy Siedlaczek, CSM Storm Water Manager – City of Southfield, MI Overview Risk-based Adaptation Strategy Capital Planning Science-based Adaptation Capital Planning Project Implementation
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10104 Climate Adaptation Strategies for Public Works in ... · Source: City of Toronto Environment & Energy Division Framework to Manage Climate Risks Community Adaptation Planning
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MUNICIPAL CLIMATE ADAPTATION AND CAPITAL PLANNING
APWA National CongressSeptember 2015
Mani Rajendran P. Eng.
Project Manager, Transportation Design – Region of Durham, ON
Jennifer E. Lawson, CSM
Water Quality Manager – City of Ann Arbor, MI
Brandy Siedlaczek, CSM
Storm Water Manager – City of Southfield, MI
Overview
Risk-based Adaptation Strategy Capital Planning
Science-based Adaptation Capital Planning
Project Implementation
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Mani Rajendran P. Eng.Project Manager, Transportation Design
Co-Chair, Roads Task Force Community Climate Adaptation Planning
Climate Adaptation Planning
Brief introduction to Durham Region
How Durham views climate-related risks
How does it go about addressing those risks
“the process that Durham follows to adapt”
Presentation Outline
Location
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The Region of Durham
Durham Region Roundtable on Climate Change
“To position the Region of Durham as a leader in addressing climate change issues.”
Durham Roundtable on Climate Change
Community Climate Change Local Action
Plan
Community Climate Adaptation Plan
Climate Adaptation
Mitigation
Protecting the climate
from us
Adaptation
Protecting us from the
climate
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Source: City of Toronto Environment & Energy Division
Framework to Manage Climate Risks
Community Adaptation Planning Process
Initiation(2013)
Initiation(2013)
Risk Assessment(2014)
Risk Assessment(2014)
Program Design & Preliminary
Costing(Current year)
Program Design & Preliminary
Costing(Current year)
Funding(2016)Funding(2016)
Implementation & Monitoring
(2017+)
Implementation & Monitoring
(2017+)
Initiation Phase
Step 1• Building Adaptation Team
Step 2• Understanding ongoing CC
& municipal responses
Step 3 • Initiating Research
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Harmony Creek Before…
Harmony Creek After…
Harmony Creek Before…
Harmony Creek After…
Risk Assessment Phase
Step 1• Climate Projection Study
Step 2• Stakeholder Involvement
Step 3• Risk Assessments
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Step 1 – Climate Projections
SENES study on Durham’s climate in 2040-2049 (compared to 2000-2009)
“Warmer, wetter, wilder”
Extreme events are a concern
Step 2 – Stakeholder Involvement
Presented the forecast study to the community
Posed questions to initiate dialogue
Requested representatives to form task forces
Community Adaptation Planning
Key Sectors of Community
Natural Environment
Roads
Flood Management
Food Security
Human Health
ElectricalSector
Buildings
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Step 3 – Interpretation & Risk Assessments
7 Expert Task Forces (ETF) created
Risk assessment Process
ETF’s met to discuss cross-over issues
Step 3: Risk Assessment (Roads)(for projected climate--extreme storm, heat, and fewer and less cold days)
1 2 3 4 5
1 Sign Posts/Trees (Storm)
Reduction in Road Salt (less cold days)
2 Bridges (Heat, Less Cold Days)
Potholes (Less Cold Days)
Sanitary Sewers (Storm)
Waterfront Bluffs (Storm, Wind)
3 Pavement Structure (Storm)
Buckling of Concrete Structure (Heat)
Pavement Deterioration (less cold days)
4 Pavement Softening (Heat)
5 Storm Structures/Embankments (Storm)
Likelihood of Impact
Con
sequ
ence
• HIGH RISK
• MODERATE RISK
• LOW RISK
Risks Identified
Task Force High Risks Medium
Risks
Total
Flood Mgmt. 26 0 26
Natural Environment 14 7 21
Buildings 16 37 53
Electrical Sector 3 3 6
Human Health 2 7 9
Roads 6 5 11
Food Security 4 9 13
Totals 71 68 139
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Design of Programs
2015 work-plan:TASK 1: Best Practice Analysis
TASK 2: Identify Measures
TASK 3: Design Program
TASK 4: Design Charrette
TASK 5: Preliminary Cost Estimate
Next Steps
Initiation
(2013)
Initiation
(2013)
Risk Assessment
(2014)
Risk Assessment
(2014)
Program Design &
Preliminary Costing
(Current year)
Program Design &
Preliminary Costing
(Current year)
Funding
(2016)
Funding
(2016)
Implementation & Monitoring
(2017+)
Implementation & Monitoring
(2017+)
Next Speaker – Jennifer Lawson, City of Ann Arbor
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ANN ARBORIncorporating the Science of Adaptation
1968
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The Climate is Changing…27
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25% increase in Precipitation…
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38% Increase in Extreme Storms…
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How old is that City-owned Pipe?
Decade Constructed Feet of Main Miles of Main Percent of Total
1900s 410 0.08 0.03%
1910s 52,545 9.95 4.29%
1920s 135,768 25.71 11.09%
1930s 40,451 7.66 3.30%
1940s 37,775 7.15 3.09%
1950s 197,359 37.38 16.12%
1960s 303,638 57.51 24.80%
1970s 149,789 28.37 12.24%
1980s 69,027 13.07 5.64%
1990s 114,035 21.60 9.32%
2000s 60,835 11.52 4.97%
2010s 6,689 1.27 0.55%
unknown 55,837 10.58 4.56%
TOTAL 1,224,158 231.85
231 Miles of Stormwater Pipe241 Miles from Ann Arbor to Chicago
Allen Creek (Before the Pipe) ~1920
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Stormwater vs. Wastewater
Combined vs. Separated Systems
City has a separated system
Stormwater goes ultimately to Huron River None receives advanced treatment
Sanitary goes directly to WWTP
Footing Drain Flow (FDD Program)
$6 Million annual revenue from Stormwater Utility
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Ann Arbor Stormwater Utility Revenue
2007 = $4,041,938.44
2008 = $4,777,706.89
2009 = $5,190,173.61
2010 = $5,298,685.15
2011 = $5,396,396.30
2012 = $6,062,364.00
2013 = $6,059,170.00
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What is a Stormwater Utility?
A dedicated funding source to support an administrative organization that plans, designs, constructs and maintains a stormwater management system, sediment and flood control programs and projects, and provides stormwater education.
Everyone pays….
Everyone pays….
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The public told us what they wanted….
33% Tree Canopy
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Integrating Green
Infrastructure and Equity
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Modeling Adaptation
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Model Calibration45
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Modeling for the Future
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Capital Improvements and Projects
Green Streets Policy
Calibrated Hydraulic Model (SWMM)
Floodplain Programming
Urban Forestry/Street Trees
Road Reconstruction Projects
Streambank Stabilization Projects
Detention Pond Upgrades
Next speaker – Brandy Siedlaczek, City of Southfield
Questions and Answers
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Southfield, MI
Brandy Siedlaczek, CSM
Storm Water Manager
Moving Climate Adaptation Strategies Forward in Michigan Using Green Infrastructure
APWA International Public Works Congress & Exposition