Sewershed NCQ-077 · NYC DEP Combined Sewer Overflow Tributary Area
NCQ-077 - Maspeth, Queens
Properties in this area share the NCQ-077 combined sewer — during moderate-to-heavy rain, runoff can exceed pipe capacity faster than it drains, which is what drives sewer backup exposure block by block. Here’s what that looks like for Maspeth, Queens specifically.
NCQ-077 is a combined sewer area covering 5,791 properties in Maspeth, Queens. Flood Form rates 43% of them Moderate or High for stormwater exposure, and 12% for groundwater. 79% of lots have yard area that legally qualifies for on-site infiltration. Ground elevation is typically 86 ft. The median building dates to 1930. 19% of parcels sit over a historic stream or pond. According to NYC DEP green infrastructure records, this sewershed drains to Newtown Creek. NYC DEP has built 158 green infrastructure assets here.
5,791
Properties in sewershed
79.1%
Legally eligible for on-site infiltration
43%
Stormwater exposure: Moderate or High
12%
Groundwater exposure: Moderate or High
What sets NCQ-077 apart
86 ft
Median ground elevation
88%
Average impervious cover per lot
1930
Median year built
19%
Properties over a historic stream or pond
Stats computed from Flood Form’s NYC parcel data as of October 9, 2026
Common solutions for Maspeth properties
Downspout Diversion
Redirects roof runoff away from the combined sewer and into landscaped or permeable areas on the lot.
Infiltration System
Drywells or infiltration chambers that let stormwater soak into the ground on-site instead of entering the sewer.
Detention System
Holds stormwater temporarily and releases it slowly, reducing peak flow into the combined sewer during a storm.
Drain Improvement
Upgrades yard, area, or foundation drains so water is carried away from the building instead of pooling.
Foundation Waterproofing
Protects the foundation from groundwater intrusion, relevant where groundwater exposure runs high.
Nearby sewersheds
- NCB-083Ridgewood13,342 properties · 38% with Moderate or High stormwater exposure
- NCQ-029Sunnyside216 properties · 21% with Moderate or High stormwater exposure
- BB-009Sunnyside1,749 properties · 46% with Moderate or High stormwater exposure
- BB-005Jackson Heights25,224 properties · 45% with Moderate or High stormwater exposure
- BB-026Sunnyside628 properties · 63% with Moderate or High stormwater exposure
- BB-006Forest Hills19,223 properties · 40% with Moderate or High stormwater exposure
Want to see where your specific property stands?
Get Your Property’s Flood Form