Reminder: Storm Detention Requirements Revised to Meet Harris County Standards

Houston Public Works has revised storm detention requirements in Chapter 9 of the 2020 Infrastructure Design Manual. Plans submitted after March 31, 2021, for initial review for projects in the public or private sector must comply with the new standards. 

These changes were driven by Harris County. In May 2020, Harris County Commissioners Court voted to restrict flood bond projects to municipalities that meet its floodplain and development rules and standards. This means detention, floodplain, and development and redevelopment standards will achieve consistent risk reduction throughout Harris County, whether projects are in a municipality or in unincorporated Harris County.

Municipalities were given until the end of 2020 to update their standards. Houston Public Works asked the Redevelopment Task Force to review and develop the required changes by the deadline. The Director announced the supplement on January 4, 2021, to keep the City in compliance and remain eligible for partnered projects from the 2018 Harris County Flood Control Bond Program.

In response to customer questions, Houston Public Works developed a guide to frequently asked questions and delayed implementation of the new storm detention requirements until March 31. 

For additional questions about the changes, please contact the Office of the City Engineer at 832.394.9164.


Last updated: March 12, 2021