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Cost and effectiveness of bioswales and rain gardens

0:33:11

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Council Member Holden inquires about the average cost of installing bioswales or rain gardens. Deputy Commissioner Licata reveals that it costs between $15,000 to $20,000 per installation.

Licata emphasizes that green infrastructure is currently their most cost-effective CSO (Combined Sewer Overflow) strategy.
She mentions that while gray infrastructure investments were made in the past, their costs have escalated, making green infrastructure more economical now.

Robert F. Holden

0:33:11

Just a couple of questions, and I don't think I have to be brief now, so I can I can go on?

0:33:21

The average cost of installing a bioswale or a rain garden, what is that?

0:33:24

Because I asked another question and I didn't get an answer at another hearing.

0:33:28

Do you have that?

Angela Licata

0:33:29

It's about $20,000

Robert F. Holden

0:33:31

The average cost?

Angela Licata

0:33:32

Yeah.

0:33:32

It's somewhere between 15,000 and $20,000 And one other important point is that our green infrastructure program is generally our most cost effective CSO strategy at this point in time.

0:33:46

There were time in the past decades when we invested a lot in gray infrastructure, including combined sewer overflow holding tanks, but those costs have escalated, and the economy of scale that we achieved is no longer available.

0:34:03

So the green infrastructure that we're installing now is among the most cost effective.

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Installation of bioswales in Queens