FLOOD FORM
34-21 11 STREET

Queens, 11106

Resilience
Grade

Access Your Flood Form

Enter your email and confirm your address to unlock the full flood exposure data for this property.

Property Summary

High Compound Flood Exposure index. Groundwater flooding is the primary exposure factor for this property. Moderate infiltration potential — standard systems such as drywells and French drains are viable. Estimated groundwater depth of about 6' indicates a persistently shallow water table with elevated seepage potential into below-grade spaces. Property drains to the BB-029 combined sewer outfall. Site overlaps buried historic streams and ponds — groundwater levels may rise rapidly during rain events independent of the resting water table depth; subsurface investigation is recommended before any infiltration work.

Property TypeMulti-Family Residential, Built 1941

Building Footprint1,320 SF

Roof Runoff 1" Rain823 Gallons

Elevation11'

Groundwater Depth6'

SewershedBB-029

Flood Exposure TypeScore

Sewer BackupModerate

StormwaterModerate

GroundwaterHigh

CoastalLow

Infiltration CriteriaValue

Lot Impervious Area2,069 SF

Block Impervious %66%

Soil Infiltration Rate5 IN/HR

Available Area919 SF

Infiltration RatingModerate