View Preliminary Mapping on the RiskMAP site
For more information, please visit the Harris County page on Riskmap6.com.
Detail of events that occur after Flood Insurance Rate Maps are issued Preliminary
In Harris County, only the areas impacted by coastal flooding are being updated under TXCHART. The riverine flood hazard data was updated on the effective Harris County FIRMs in 2007. The Cypress Creek Watershed (northwest portion of the county) is currently begin revised under a separate project to incorporate new flood risk data developed by the Harris County Flood Control District. Revised FIRMs panels were released on September 30, 2010. See www.riskmap6.com or www.rampp-teamp.com for more information.
Harris County was founded in December 1836 as Harrisburg County. The name was changed to Harris County in December 1839.
In 2000, Harris County has a population of 3,400,578, making it the most populous county in Texas, and the third most populous county in the United States.
The region in Harris County receives annual rainfall averages of 48 to 52 inches. Several historic storms affected the area, including Hurricane Ike in September 2008, and Tropical Storm Allison in June 2001. Tropical Storm Allison was especially destructive and caused significant flooding even outside the designated Special Flood Hazard Areas. To mitigate this, the Tropical Storm Allison Recovery Project (TSARP) was established, culminating in new Special Flood Hazard Area (SFHA) maps in June 2007.
Harris County entered the regular National Flood Insurance Program (NFIP) in May 1970. The current date of the county map is June 2007. Many cities in Harris County also joined the regular NFIP during the 1970s and 1980s.
Harris County and several other communities within the county participate in the Community Rating System (CRS) and enjoy a five to 20 percent discount on flood insurance premiums as of June 2010.Coastal Barrier Resources Systems are identified by the U.S. Fish and Wildlife Service (USFWS) and can be viewed here.