Flood Management

Division of Engineering

Flood Zone / Flood Hazard Area

In connection with the State's Inland Flood Rule published on July 17, 2023, the NJDEP launched New Jersey's Flood Indicator Tool website to aid the public in gauging flood risk.  The tool is a mapping program that can provide a visual display of flood indicators on or near properties entered into the tool. It builds on the FEMA FIRM maps for communities in NJ. This tool can be accessed at: https://dep.nj.gov/inland-flood-protection-rule/flood-tool/

Owners of properties designated in a flood zone are encouraged to protect their assets by acquiring flood insurance. Learn more about the National Flood Insurance Program at:  https://www.floodsmart.gov/

Flood prone property owners can also look into the State's Blue Acres program for potential buyout to reduce flood risks and future claims. Learn more at: https://dep.nj.gov/blueacres/homeowners/

Any use of flood hazard areas within the Township is strictly regulated under the Township Code, Chapter 200 Land Use, Part 6 Flood Damage and Prevention https://ecode360.com/8066692 

If you need help trying to determine if a property is within a Flood Zone / Flood Hazard Area - Click here for the online FEMA Mapping service. Alternatively, you can visit the Community Development Department during normal business hours and someone will assist you with reviewing paper copies of the adopted FEMA Flood Insurance Rate Maps for West Windsor Township.

• Yard Waste and Flooding
• Frequently Asked Questions (FAQs)
• Little Bear Brook Watershed Study

YARD WASTE AND FLOODING:

With the brief but intense rains that occurred on Tuesday, August 6th (3.75 inches of rain over two and a half hours) the West Windsor Police Department reported numerous areas of flooding in town. The overwhelming majority of these were related to streets where drains were blocked by leaf litter and yard waste. Much of this yard waste was deposited on the street outside of permitted time periods. Public Works routinely runs a street sweeper to help remove leaves and debris from 126 lane miles of streets in town. They also inspect and vacuum out debris that collects in the bottom of catch basins so that pipes flow freely. Their efforts aid in the cleanliness and safety of our streets, but they can't be everywhere at once. Improperly timed placement of yard waste hampers their street sweeping and can add debris into catch basins.

We need your help to keep the storm drains near your house clear before and during rainy weather to help prevent flooding like was experienced on August 6th.

AS A PUBLIC SERVICE REMINDER TO ALL PROPERTY OWNERS:

Per Township Code, yard waste can only be placed out in the street during the seven (7) days PRIOR TO a scheduled and announced collection. Additional yard debris should not be placed at curb or along the street after DPW crews have cleared the street of yard debris. No yard waste shall be placed closer than 10 feet to any storm drain inlet.

 

Little Bear Brook Watershed Study

• Final Report - Little Bear Brook Flood Hazard Assessment, Phase I – Little Bear Brook and Millstone River prepared by SWM Consulting of Ringoes, NJ and dated May 15, 2015
• Final Report - West Windsor Redevelopment Area Regional Stormwater Management Analysis and Build-out Report prepared by Princeton Hydro, LLC of Ringoes, NJ and dated May 2015
• Little Bear Brook Flood Study and Redevelopment Area Regional SWM Plan Transmittal Memorandum from Engineering Department – May 20, 2015
• November 2, 2011 meeting materials - Stony Brook-Millstone Watershed
• Professional Consultation Solicitation
• Little Bear Brook - Council Presentation and Photos

Bear Brook Bridge – Old Trenton Road

Residents are advised that Old Trenton Road has been reopened to traffic in the area of the Big Bear Brook Bridge. The temporary traffic signal that was installed to assist with detour traffic at the intersection of Southfield and New Village Roads will be removed.

For more information, call the Engineering Division of Community Development at West Windsor Township – (609) 799-9396 or Mercer County Engineering – (609) 989-6600.

September 16, 2013 Council Meeting Presentation

Photos

• Bridge and Road  
• Stream and Bridge 
• Little Bear Brook Watershed Study

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Little Bear Brook Watershed Study20 documents

• September 16, 2013 Council Meeting Presentation
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• June 30, 2014 Public Meeting Presentation
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Final Report - Little Bear Brook Flood Hazard Assessment, Phase I – Little Bear Brook and Millstone River prepared by SWM Consulting of Ringoes, NJ and dated May 15, 20158 documents

• Report Little Bear Brook Flood Risk Assessment - Phase I
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• App A Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-2
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• App B Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-3
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• App C Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-4
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• App D Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-5
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• App E Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-6
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• App G Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-8
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• App F Little Bear Brook Flood Risk Assessment - Phase I Report - Little Bear Brook and Millstone River - Final Report - 5-15-15-7
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Final Report - West Windsor Redevelopment Area Regional Stormwater Management Analysis and Build-out Report prepared by Princeton Hydro, LLC of Ringoes, NJ and dated May 20154 documents

• Buildout Report Final
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• Buildout Report Final - Appendix A and B
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• Buildout Report Final - Appendix C and D
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• Buildout Report Final - Appendix E
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November 2, 2011 meeting materials - Stony Brook-Millstone Watershed5 documents

• GIS image partial LBB flood
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• Hydrologic Cycle
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• Millstone Watershed with Township Outlined
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• ACOE Millstone Brief
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• What is a Watershed? Slide
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Professional Consultation Solicitation1 document

• RFP Document
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