Blueprint columbus presentation ms consultants kari mackenbach

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Overview of Presentation • What is BP Columbus?

• Inter-Agency Coordination Strategies • Linear application successes based on O&M and localized flood mitigation • Road-Right-of Way Applications

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City of Columbus WWMP • Ohio EPA Consent Decree • WWMP solutions included tunnels and gray infrastructure • Priority area identify • I/I Studies conducted over the last 10 years • Private Property I/I root cause 3

What is Blueprint Columbus?

• USEPA Integrated Planning Memo • Columbus requested revision to their WWMP to integrate green infrastructure • Blueprint Columbus branded in 2013 • Blueprint works to eliminate sewer overflows by: • Keeping stormwater out of our sanitary sewers • Slowing down & filtering the flow of stormwater into our storm sewers

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Over-Arching Goals • Lining the Sanitary Sewers • Addressing WQ • Mitigating Flooding • Neighborhood Revitalization

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Program Backbone

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Pilot Area Technical Committee • PATC was created • PATC meetings included several technical memos • Transportation/Linear Coordination • Modeling Guidance • Design Charettes

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Inter-Agency Coordination and Cost Sharing • All-Hands Meetings • Cooperating Resources • CIP Planning • Grant Access • Cross-Pollinating Benefits

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LID Benefits and Challenges on Linear Roadway Application Roadway LID Benefits • Large public ROW • Treatment Train of distributed LID features • Disconnect impervious pavement areas at source.

• Pre-treatment along existing vegetated filter strips and swales in ROW. 9

Roadway LID Challenges • Safety • Maintenance • Vector Control • Structural Integrity • Utility conflicts • Sediment Clogging

Steps to Success in the Hilltop

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Hilltop-Eureka Freemont Area

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Project Area Assessment

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Steps to Success

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GI Placement Options

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Alley Before

Bioretention Before

Land Bank Before

Pervious Sidewalks Before

GI Placement Options

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Alley After

Bioretention After

Land Bank After

Pervious Sidewalks After

GI Placement Options

Alley Before

Utilization of Street Islands Before

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Reestablishment of Brick Streets Before

Vacant Land Conversion Before

GI Placement Options

Alley After

Utilization of Street Islands After

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Reestablishment of Brick Streets After

Vacant Land Conversion After

GI Placement Options Did you know? 

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Water quality studies have shown that the main causes of impairment are from direct habitat alterations, nutrients, siltation, and flow alteration.

Bioretention practices provide the best water quality benefits in addition to enhancing neighborhood values.

Alley Alternative GI practices such as permeable Reestablishment of Brick Streets Before Before water quality improvement pavements provide and high pollutant removal. Research has indicated up

to 97% removal of TSS, 42% of TN, 82% of TP, and up to 99% of heavy metals.

Research has also shown permeable pavements attenuate runoff volume when compared to impervious parking lots and substantially reduce Utilization of pollutant loading to receiving water bodies.

Street Islands Before

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Vacant Land Conversion Before

Operation and Maintenance fdsgfdg

Agency/ Department Led Maintenance

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GI Placement Options • No GI is maintenance free • Selecting the appropriate type of practice based on maintenance considerations is key • Long-term maintenance plan • Frequency of maintenance • Equipment needs • Routine maintenance • As needed maintenance • Monitored performance • Re-evaluation GI • Skilled maintenance providers

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Bio-Infiltration

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Bio-Infiltration

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Permeable Pavements - 3 P’s POROUS

PERMEABLE PERVIOUS

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Permeable Pavement Maintenance POROUS

PERMEABLE PERVIOUS

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Dellrose Street-Sawmill Watershed • Permeable Pavers • I/I removal • Street BMP • Elimination of Storm Sewer • Cold Weather Climate Functionality

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Tree Boxes-Do They Make Sense?

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Tree Box Maintenance

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Bio-Tree Trench • Bio-infiltration and Tree Boxes • Redirection of I&I • Horizontal Infiltration • Permeable Pavers provide resiliency • Less Maintenance with trees

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What Are Your Program Goals?

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CSO/SSO mitigation MS4 Cost Effective Community Reinvestment Floodplain Management Ease of Maintenance Long-term Performance Distressed (Vacant) Alternative Funding Strategies 29

Evaluate Limiting Factors • • • • •

Utility Conflicts Linear Success Rate O&M Coordination Existing Conditions Early Inter-agency Coordination • Community Buy-in • Construction Oversight • LID Manual Coordination

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Next Steps • Continued Implementation of Blueprint Projects • Monitoring for Success • LID Manual Update/Linear Applications • Meeting Consent Order Neighborhood Revitalization • Work Force Development • Design Innovations Utilized

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