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Texas - Harris County - White Oak Bayou

Type: 
Riverine
Case Number: 
14-06-1988S
Affected Counties: 
Harris County, TX
Preliminary map: 
N/A
Projected Effective: 
N/A
Project Status: 
Active

Project Information:  The White Oak Bayou Federal Flood Damage Reduction Project, initiated in 1998 has reached a construction milestone, allowing the update of the Flood Insurance Rate Maps (FIRMs) along a portion of the bayou.  The Harris County Flood Control District (HCFCD) prepared an updated engineering analysis to update the floodplain information shown on the Flood Insurance Rate Maps (FIRMs).  The pending update will reflect the construction of various flood risk reduction projects undertaken along White Oak Bayou.

FEMA is currently working to prepare the preliminary Flood Insurance Rate Maps (FIRMs) in the White Oak Bayou project area for release.

About the Federal Flood Damage Reduction Project: The White Oak Bayou Federal Flood Damage Reduction Project, a cooperative effort between the US Army Corp of Engineers and the Harris County Flood Control District, began constuction in 1998.  The project included construction of six stormwater detention basins (designed to detain 1.1 billon gallons of stormwater), channel improvements for approximately 15 miles of bayou (between Coal Creek and FM 1960), and construction of the Jersey Village Channel.  The Jersey Village Channel is designed to carry a significant portion of the White Oak Bayou flow around the City of Jersey Village.  Construction of these projects has been completed.

Additional flood risk reduction projects are on-going, including channel conveyance improvements along White Oak Bayou beteen Cole Creek and  tributary formally identified as HCFCD Unit E122-00-00, from the Jersey Village Channel to F.M. 1960.  Expansion of two existing stormwater detention basins is also included in the remaining projects for construction.

Upon project completion, the Flood Control District estimates that within the project area, most areas along White Oak Bayou will see water surface elevation reductions of 0.5 to 1.5 feet for the 1 percent (100-year) flooding event.

About the Watershed: The White Oak Bayou watershed stretches from central to northwest Harris County and includes the City of Jersey Village and portions of the City of Houston. Rainfall within the 111 square miles of the White Oak Bayou watershed drains to the primary waterway, White Oak Bayou (HCFCD Unit E100-00-00). The bayou flows southeast from its headwaters northwest of FM 1960 to its confluence with Buffalo Bayou (HCFCD Unit W100-00-00) downtown Houston.

Dates: Data Received from HCFCD (January 2017), Preliminary Issuance – PENDING

Documents and Data:

Additional Resources: HCFCD – Flood Eduction Mapping Tool (Interactive Map); HCFCD – White Oak Bayou Watershed; HCFCD – White Oak Bayou Federal Flood Risk Reduction Project; HCFCD – Completed Projects – White Oak Bayou; HCFCD – Inwood Forest Stormwater Detention; HCFCD – Lower White Oak Bayou Channel Restoration Study; What is Risk MAP?; FAQs - Flood Hazard Mapping