Flooding Awareness & Mitigation
Like any other low-lying coastal area, Norfolk’s elevation and its proximity to natural waterways make it susceptible to flooding, especially during periods of heavy rain, hurricanes or nor’easters. During these events, properties, particularly those near natural waterways, are threatened with possible flooding from precipitation, tidal inundation, or wind-driven flooding.
$120.5 Million for Resiliency
Public Input on Flooding
Common Flooding Types and Definitions
- Precipitation Flooding - Occurs when rain intensity exceeds capacity of our storm drain systems due to blockages or naturally depressed elevations.
- Storm Flooding - Is caused by storm surges resulting from events such as hurricanes and nor'easters and is directly related to land elevation and proximity to coastline. High tides magnify this storm damage.
- Tidal Flooding - Is caused by tidal variations and is directly related to land elevation and proximity to coastline. Tidal flooding may occur on a regular basis due to normal moon cycles and is exacerbated by wind speeds and directions, sea level rise, and other types of flooding.
Flood Mitigation involves cost-effective measures taken now to avoid the loss of life and reduce future damages from natural hazards and their effects to public facilities, homes, and other improved property. By implementing flood mitigation measures you may prevent future damage to your property resulting from flood and potentially lower your flood insurance premium.
Benefit-cost analysis (BCA) process is a way to measure benefits of project against the costs. A BCA involves looking at damages and losses both before the mitigation is installed and after the mitigation is in place. A project is considered cost-effective when the benefits derived exceed the cost incurred for the project.
You may want to consider discussing mitigation options with your flood insurance agent. Additionally, should your property qualify the Hazard Mitigation Assistance (HMA) Grant Program may provide grant funds to assist with flood mitigation.
All mitigation grant program applications require a completed Benefit Cost Analysis (BCA) to be submitted with the application for funding.
For more information refer to the following FEMA link: https://www.fema.gov/benefit-cost-analysis
Information on this site is as accurate as possible based on available data. The City of Norfolk is not responsible for any information posted on linked sites.