Last week’s devastating floods in central Texas killed more than two dozen people, many of them at Camp Mystic, a children’s camp for girls. The camp asked FEMA to change their flood maps after a 2011 revision placed much of the camp in a floodplain. FEMA responded by removing more than a dozen buildings from their flood zones in 2013 and then again in 2019 and 2020. Buildings outside of the 100 year flood zone (areas that tend to flood much more frequently than every 100 years) are exempt from needing flood insurance. They are also exempt from more stringent requirements such as elevating the buildings or shoring up their foundations.
Here is a screen shot from FEMA’s map showing the “floodway” (the zone where water moves quickly during a flood) in the hatched colors and the 100 year flood zone in blue. This is where many of the girls were swept away by moving water. Some of the cabins were in the orange or unshaded areas which are not considered part of the flood zone.
First Street, a climate risk modeling agency drew their own maps showing an increased risk of flooding for many of the cabins exempted from FEMA’s maps.
 |
| map from First Street, via KUT Austin |
An excellent article from NPR's KUT affiliate in Austin shows these maps and provides links to letters of map amendment asking for exemptions of certain buildings.
1 comment:
In the top picture the outer boundary of the FIRM is coincident with the northern edge of the stream. Is there an invisible vertical wall that separates the two? Of course not. The most probable failure is that the FIRM layer was inserted with incorrect coordinates. Owner when faced with absurd map contracts with surveyor who establishes elevation of lowest ground elevation at each building as it relates to FZ elevation. They file appeal and win because there is nothing to argue about.
Post a Comment