The following documents contain the recommended guidelines, procedures and criteria to obtain hydraulic permit approval within the Houston District. The documents were prepared to assist land development and site engineers with a general methodology for the hydrologic and hydraulic analysis required within the Houston District. The documents were prepared for typical permit projects and are not comprehensive to be applicable to all sites. If further clarification is required, please contact the Houston District Hydraulic group.

Updated EBD Spreadsheet & ATLAS 14 Related Information

Title	Downloads
Rainfall Intensity-Duration-Frequency Coefficients for Texas
EBDLKUP-2019 User Manual
Precipitation Frequency Data Server
*TxDOT EBDLKUP IDF Zones

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Drainage Design Guidelines

Title	Downloads
Drainage Design Guidelines for Typical Projects
Detention Method 1
Detention Method 2
Pump Discharge Criteria
Drainage Checklist and Summary Table