23-39 31st Avenue, Queens, NY 11106 Flood Risk | Flood Form
FLOOD FORM 23-39 31 AVENUE
Queens, 11106
D
Resilience Grade
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Property Summary
Moderate 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 7' 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 1901
Building Footprint704 SF
Roof Runoff 1" Rain439 Gallons
Elevation20'
Groundwater Depth7'
SewershedBB-029
Flood Exposure TypeScore
Sewer BackupLow
StormwaterMinimal
GroundwaterModerate
CoastalMinimal
Infiltration CriteriaValue
Lot Impervious Area2,447 SF
Block Impervious %79%
Soil Infiltration Rate3 IN/HR
Available Area1,280 SF
Infiltration RatingLow
Flood Exposure TypeScore
Infiltration CriteriaValue
Sewer BackupLow
Lot Impervious Area2,447 SF
StormwaterMinimal
Block Impervious %79%
GroundwaterModerate
Soil Infiltration Rate3 IN/HR
CoastalMinimal
Available Area1,280 SF
Infiltration RatingLow
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