Designing for the Future Our Changing Climate April 15, 2016 New Haven’s Infrastructure for City of New Haven Rising (and Falling!) Water Toni N. Harp, Mayor Giovanni Zinn, PE City Engineer City of New Haven
Urban Hydrology
Combined Sewers vs Separate Sewers
New Haven’s Stormwater System
Are we getting more rain?
Solutions Hard Infrastructure More pipes! • Tanks • Pumps • Green Infrastructure Bioswales • Rain gardens, • Barrels, • Permeable • concrete
Bioswales • Green infrastructure in the public right of way • Standard size: 15 feet by 5 feet • Infiltration vs transportation • Visible infrastructure
Bioswales
Emerson St. – Before…
Emerson St. – After!…
Howard Avenue
Downtown Hill Long Wharf
Downtown Hill Long Wharf ~ Solutions
Green Infrastructure as Preferred Option • 600 acre drainage area • Up to 200 bioswales to be installed over the next two years • Funded by CDBG-DR • LID Modeling Study • Broad deployment of GI
Green Jobs • Urban Resources Initiative • EMERGE • CFE/Save the Sound • Work with Re-entry population • Provide job skills training
Right-of-way Green Infrastructure Through 4-15-16
Lessons Learned • Go with Green-first philosophy • Find the co-benefits • Don’t hedge your bet on GI • Engage the community • See what works elsewhere • Embrace your sandy soils
Thank You! Giovanni Zinn gzinn@newhavenct.gov @NewHavenEng
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