Sewershed RH-005 · NYC DEP Combined Sewer Overflow Tributary Area
RH-005 - Bedford-Stuyvesant, Brooklyn
Properties in this area share the RH-005 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 Bedford-Stuyvesant, Brooklyn specifically.
RH-005 is a combined sewer area covering 8,460 properties in Bedford-Stuyvesant, Brooklyn. Flood Form rates 43% of them Moderate or High for stormwater exposure, and 19% for groundwater. 79% of lots have yard area that legally qualifies for on-site infiltration. Ground elevation is typically 65 ft. The median building dates to 1910. 6% of parcels sit over a historic stream or pond. According to NYC DEP green infrastructure records, this sewershed drains to East River / Open Waters. NYC DEP has built 31 green infrastructure assets here.
8,460
Properties in sewershed
79%
Legally eligible for on-site infiltration
43%
Stormwater exposure: Moderate or High
19%
Groundwater exposure: Moderate or High
What sets RH-005 apart
65 ft
Median ground elevation
78%
Average impervious cover per lot
1910
Median year built
6%
Properties over a historic stream or pond
Stats computed from Flood Form’s NYC parcel data as of October 9, 2026
Common solutions for Bedford-Stuyvesant 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-014Bedford-Stuyvesant16,178 properties · 39% with Moderate or High stormwater exposure
- RH-034Prospect Heights4,975 properties · 38% with Moderate or High stormwater exposure
- OH-007Park Slope3,227 properties · 22% with Moderate or High stormwater exposure
- OH-005Gowanus336 properties · 79% with Moderate or High stormwater exposure
- NCB-013South Williamsburg267 properties · 29% with Moderate or High stormwater exposure
- RH-035Carroll Gardens815 properties · 23% with Moderate or High stormwater exposure
Want to see where your specific property stands?
Get Your Property’s Flood Form