The 100-year floodplain is land that is predicted to flood during a 100-year storm, which has a 1% chance of occurring in any given year. The 500-year floodplain has a .2% chance of occurring. View flood plain map with 100-year and 500-year.
Houston Chronicle's eight-part flooding series "Swamped"
a) Addicks and Barker Reservoirs Dam Safety Program Constructionupdateby US Army Corps of Engineers
To provide feedback, click on the USACE SurveyMonkeylink
Follow construction status in map form at the USACE website