We have completed new floodplain studies that indicate revised flood risks for several Austin watersheds. We periodically restudy creeks to ensure accurate floodplain maps, which help us prepare for flooding.
Missed the Meeting? Watch the Video Here
About the Study
In 2010, the City of Austin received a grant from the Federal Emergency Management Agency to study the floodplains of several creeks:
Bull and West Bull
Dry Creek East
The studies have now been completed, and we are in the process of updating the floodplain maps. The information is also being used to regulate development. You can see areas where the floodplain changed by clicking here. These creeks were selected because the existing floodplain maps are either incomplete or based on outdated information and computer models.
There are three ways the study affects properties in these watersheds:
Approximately 2,200 properties are no longer considered to be in the floodplain. This may include the whole property, the structure or just a portion of the property.
Approximately 2,400 properties are now considered to be in the floodplain. As above, this may include the whole property, the structure, or just a portion of the property.
In addition, flood depths may have changed for the thousands of properties that remain in the floodplain. Changes in depth are not uniform along the length of the creeks.
2014 – Appeal Period
There will be an opportunity to appeal the FEMA maps in 2014. Please note that appeals must be based on engineering and survey data. This means that you must hire an independent engineer if you intend to appeal the maps. We will announce the start of the appeal period on our web site, by email for those who have sent us an email requesting update, and by publishing a legal ad in the Austin American-Statesman.
2015 – Adoption of Maps
New floodplain maps will become official for flood insurance purposes in 2015.
To receive email updates on this project, please send us an email and ask to be included in the updates.