The City of Woodbury operates a stormwater system of ponds and pipes that is designed to control for flooding and protect water quality of lakes and wetlands. Updated rainfall frequencies have revealed that portions of the city are not protected from flooding under all conditions. This does not impact flood insurance within the community, which is decided by the Federal Emergency Management Agency (FEMA).
Background: Atlas 14 Study
The National Oceanic and Atmospheric Administration (NOAA) completed a study, known as Atlas 14, which revealed precipitation rates in our area for the 100-year storm increased from 6.3 inches to 7.4 inches in a 24-hour period. Since the release of the report, the city has updated its modeling and requirements for new developments to protect structures to this level. (Please note that the 100-year storm has a 1 percent chance of occurring in any given year.)
It is the city’s responsibility to maintain its stormwater system for flood control and water quality benefits. Recent analysis has identified areas of modeled flood risk based on these higher precipitation amounts. This analysis resulted in homes identified as high, medium or low risk of flooding. Some locations can be improved with modifications made to city-owned property. For those that do not have a city project available, a limited cost share assistance program for high and medium risk homes is being offered.
Medium Risk homes are defined as having less than one foot of freeboard above the Atlas 14 High Water Level and will be offered 50 percent cost share from the City of Woodbury.
High Risk homes are defined as having lowest adjacent grade below the Atlas 14 High Water Level. These properties will be offered 75 percent cost share from the City of Woodbury.
If your property has been identified as high or medium flood risk, homeowners have been notified of eligibility and terms of the program. This program is scheduled to run 2019-2021, and homes have been assigned a funding year based on location in the city.
Participants have until July 1 of their program year to complete the application below. After city approval, they have until Dec. 31 of the following year to complete the work and request reimbursement. Work completed prior to city approval will not be eligible for cost share reimbursement. This program is considered taxable income by the IRS.
The most common solutions for homeowners will include converting walk-outs to look-outs, replacing large basement windows with smaller windows, and landscape modifications.
- Dec. 18, 2018 Presentation
- Department of Homeland Security: Make a Plan
- Department of Natural Resources: Atlas 14 in Minnesota
- NOAA Atlas 14 Point Precipitation Frequency Estimates
- Blank W-9 Form (must be submitted with application)