21-31 31st Avenue, Queens, NY 11106 Flood Risk | Flood Form
FLOOD FORM 21-31 31 AVENUE
Queens, 11106
F
Resilience Grade
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Property Summary
High Compound Flood Exposure index.Groundwater flooding is the primary exposure factor for this property.Low infiltration potential — conveyance and management strategies may be more appropriate. Estimated groundwater depth of about 1' indicates a persistently shallow water table with elevated seepage potential into below-grade spaces. Property drains to the BB-029 combined sewer outfall.
Property TypeTwo Family Residential, Built 1920
Building Footprint660 SF
Roof Runoff 1" Rain411 Gallons
Elevation14'
Groundwater Depth1'
SewershedBB-029
Flood Exposure TypeScore
Sewer BackupModerate
StormwaterModerate
GroundwaterHigh
CoastalLow
Infiltration CriteriaValue
Lot Impervious Area1,847 SF
Block Impervious %94%
Soil Infiltration Rate3 IN/HR
Available Area1,455 SF
Infiltration RatingLow
Flood Exposure TypeScore
Infiltration CriteriaValue
Sewer BackupModerate
Lot Impervious Area1,847 SF
StormwaterModerate
Block Impervious %94%
GroundwaterHigh
Soil Infiltration Rate3 IN/HR
CoastalLow
Available Area1,455 SF
Infiltration RatingLow
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