21-21 31st Road, Queens, NY 11106 Flood Risk | Flood Form
FLOOD FORM 21-21 31 ROAD
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 Footprint1,026 SF
Roof Runoff 1" Rain640 Gallons
Elevation9'
Groundwater Depth1'
SewershedBB-029
Flood Exposure TypeScore
Sewer BackupLow
StormwaterHigh
GroundwaterHigh
CoastalHigh
Infiltration CriteriaValue
Lot Impervious Area4,629 SF
Block Impervious %91%
Soil Infiltration Rate3 IN/HR
Available Area2,665 SF
Infiltration RatingLow
Flood Exposure TypeScore
Infiltration CriteriaValue
Sewer BackupLow
Lot Impervious Area4,629 SF
StormwaterHigh
Block Impervious %91%
GroundwaterHigh
Soil Infiltration Rate3 IN/HR
CoastalHigh
Available Area2,665 SF
Infiltration RatingLow
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