Texas
TxDOT Hydraulic Design Manual
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Heuristic agency extract from prepared text. TxDOT Hydraulic Design Manual (revised Sept 2019) Pipeline excerpt repair removed 1 unlocated citation(s).
Fields not found in document: design_criteria.water_quality_volume_method, document_metadata.jurisdiction_name
Other manuals in Texas: City of Amarillo, City of Arlington, City of Austin, City of Beaumont / Jefferson County Drainage District No. 6, City of Brownsville, City of College Station, City of Corpus Christi, City of Denton, City of El Paso, City of Fort Worth, City of Frisco, City of Garland, City of Grand Prairie, City of Houston, City of Killeen, City of Laredo, City of Lubbock, City of McAllen, City of McKinney, City of Mesquite, City of Pasadena, City of Pearland, City of Plano, City of Round Rock, City of San Antonio, City of Waco, Dallas / North Central Texas (iSWM), Harris County, Tarrant County, Texas Commission on Environmental Quality
Document Metadata
Jurisdiction level
State
No evidence cited
State
Texas
No evidence cited
Version / edition
Not found in document
No evidence cited
Adoption / effective date
Not found in document
No evidence cited
Last revised date
Not found in document
No evidence cited
Relationship to state manual
independent
No evidence cited
Design Criteria
Design storm return periods (years)
2-year, 5-year, 10-year, 25-year, 50-year, 100-year, 500-year
“0% 0.50 2-year 20% 0.20 5-year 10% 0.10 10-year 4% 0.04 25-year 2% 0.02 50-year 1% 0.01 100-year While AEP, expressed as a perc”
Water quality volume method
Not found in document
No evidence cited
Peak flow calculation method(s)
Rational Method, NRCS / SCS Curve Number (TR-55), TR-20, HEC-RAS
“. . . . . . . . . . . 4-45 Section 12: Rational Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .”
Hydrologic/hydraulic software
HEC-RAS
No evidence cited
Approved BMP categories
Detention Basin, Retention Basin
“Detention Basin, Retention Basin”