10/2/2023 0 Comments Houston flood plain![]() Lauren Alexander Augustine last week is greater resilience. The greater message stressed by both Professor Pinter, and Dr. The best way to approach a line on a flood map is like a poisonous snake - don’t panic, but stay well clear.” While staying well clear may not be an option for everyone, the important message to take from this is that just because your house is not in a FEMA-designated “100 year flood zone” does not mean you are safe from flooding. That is a false and dangerous message to send. Part of this problem, Professor Pinter said is that “flood maps in the US is that they are drawn as “lines in the sand” - at risk of flooding on one side, and A-OK on the other. Thousands of homes in the Houston area have taken on many feet of water due to torrential rain from Hurricane Harvey. This means that many people will be paying for flood damage completely out of pocket. Because of this, only 15% of households in Harris County, which is home to Houston, have flood insurance, according to a study conducted by the New York Times. If you don’t have a mortgage or are outside FEMA’s 100-year flood zones (zones in which FEMA estimates there is a 1 in 10 chance per decade of flooding), you aren’t required to carry flood insurance. (Photo from: )Īdding to the problem is that even though there are mandatory flood insurance zones, this only applies to people who have a federal mortgage. ![]() Many people in Houston were forced to evacuate their homes following over three feet of rainfall from Hurricane Harvey. ![]() All of this means new flood maps do not come out frequently. And even then, areas must be part of a FEMA-funded restudy or the community in question has to provide new information to FEMA. For example, new FEMA maps are often only made after there is new development or flood-control projects are completed. They take too long to roll out, take too long to be updated, and any update that adds an inch to floodprone land is usually vigorously opposed by local groups.” This means that the maps on which mandatory flood insurance is based may be outdated and not entirely representative of the level of flood risk. Professor Pinter, who is the Associate Director of the UC Davis Center for Watershed Sciences believes that “US flood maps are not useless, but they are flawed. While not specifically designed for the impacts of hurricanes, this map highlights how susceptible to flooding Houston, the fourth largest city in the country, is.Įven though this scale of flooding appears to suggest that the FEMA flood maps are inadequate, Professor Nicholas Pinter at the University of California Davis has a slightly different take. This Temblor map shows the FEMA flood map for the city of Houston. This phenomenon is not isolated to Hurricane Harvey, as the same was also the case in Hurricane Matthew and the Louisiana floods in 2016. In fact, many of the striking images shown around the world are completely outside of all of FEMA’s flood zones. Now however, up to 50 inches are expected in some portions of the city during the entire duration of the storm, meaning that flooded areas are not isolated to FEMA’s mandatory flood insurance zones. At that stage, the city of Houston was forecasted to receive between one and two feet of rain. Lauren Alexander Augustine said that flood insurance would be a major demarcation in how quickly people are able to recover. When we last wrote about Hurricane Harvey on Friday, Dr. ![]() (Photo from: Reuters)Īs the remnants of Hurricane Harvey continue to dump rain on both southeast Texas and Louisiana, bringing further deluge to the city of Houston, people will soon be faced with the task of cleaning up, and recovering, which could take years. See if you are in a flood zone I-45 in Houston remains underwater following over three feet of rain in the city.
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