SW Queens Flooding Helpful Info

A collection of helpful information from various sources about flooding in Southwest Queens. If you think we missed something good, please email us.

NYC and Flood Facts / Stats

We compiled some useful stats from our research, such as:

Q: How much rain water collects on your property in a 1 inch storm?
Q: How much damage can a 1 inch sudden rainstorm cause?
Q: What about sewer backup and how does that relate to flood insurance?
Q: If walls are damaged, is finishing the walls (plaster, painting) covered by flood insurance?
Q: How much progress has NYC made since Hurricane Sandy on key goals for flood mitigation?

Number Buildings At Risk in Sunnyside

An interesting view from First Street Data (who provides climate risk data to Zillow now, so if you look up a house for sale, it will show flood risk as part of listing). This map says: “The neighborhood of Sunnyside has a moderate risk of flooding over the next 30 years. There are 792 properties in Sunnyside that have risk of flooding over the next 30 years. This represents 25.1% of all properties in Sunnyside.” Note: Commercial buildings are in “Major” risk category (see blue bars at bottom).

Report Showing Basement Apartments In Flood Risk Areas

A story from the Sunnyside Post on the Regional Plan Association (RPA 2022) found that there are approximately 31,000 low-density residential buildings in central Queens neighborhoods that have below grade basements, which property owners frequently convert into unlicensed apartments. Many are at high-risk of flooding during extreme rainfall. Note: The RPA recently updated their estimates and now project 82,000 homes are likely to be lost in NYC by 2040 (..that’s 15 years from now).

NYC Climate Resilience Plans and Risks on Map

A SW Queens map view of flooding risk from BOTH stormwater (light blue) and coastal surge (purple). This comes from NYC Climate Resilience Plan Mapper to show how city is focussing on grey and green infrastructure projects in higher risk areas. Note: it is an interactive map so you can play with it to see layers (flooding, heat, etc), different plans/projects, zoom in or out.

Flood Risk Map WITH Groundwater and 311 Reports

We like this map from Field Form in that it combines historic waterbody paths, stormwater flooding projections, coastal flooding projections, sewer and basement backup history and other publicly available data to aggregate and determine relative flooding exposure levels for every individual property.

NYC Green Infrastructure Flooding Portal

NYC DEP knows that sewer upgrades are needed but also cannot handle all the water that is coming our way. Another key part of the plan is to leverage nature and green projects that hold or slow down water BEFORE it overwhelms the old sewers. This map shows various efforts across the city. From tree beds to rain gardens, to bio-swales, even parks designed to act like sponges. See the various types and locations. PS: they cant just be installed, they need to be maintained.

Incentives for Mitigation

Preparedness and Funding

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