City of Fort Worth

Stormwater Criteria Manual

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Fort Worth July 2024 SCM; WQ Option 2 is iSWM-aligned but City notes WQ not currently required by CFW itself. Pipeline excerpt repair removed 2 unlocated citation(s).

Fields not found in document: design_criteria.required_hydrologic_hydraulic_software, document_metadata.version_or_edition, document_metadata.last_revised_date

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 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, Texas Commission on Environmental Quality

Document Metadata

Jurisdiction level

City

“Adoption of Manual by City of Fort Worth”
Adoption

State

Texas

“TPDES Stormwater permit”
Design options table

Version / edition

Not found in document

No evidence cited

Adoption / effective date

2024-07-15

“This Stormwater Criteria Manual ("Manual") is adopted and becomes effective on July 15, 2024.”
Adoption

Last revised date

Not found in document

No evidence cited

Relationship to state manual

independent

“The North Central Texas Council of Government ("NCTCOG") iSWM Technical Manuals are adopted and incorporated herein by reference.”
Adoption

Design Criteria

Design storm return periods (years)

1-year, 5-year, 100-year

“No increase greater than 0.1 feet in 1-, 5-, and 100-year flood elevations”
Flood criteria

Water quality volume method

Water Quality Protection Volume (WQV) Option 2: treat TSS for runoff from rainfalls up to 1.5 inches (85th percentile storm). Note: water quality protection is not currently required by the City but may be required by TRWD or other agencies. Manual incorporates NCTCOG iSWM Technical Manuals by reference.

“Treat the Water Quality Protection Volume (WQV) by reducing total suspended solids from the Development site for runoff resulting from rainfalls of up to 1.5 inches (85th percentile storm)”
Design Options / Water Quality

Peak flow calculation method(s)

Streambank Protection: on-site controlled release of 1-year, 24-hour storm over 24 hours (SPV) or downstream mitigation options, Flood Mitigation: detention to completely mitigate increase in peak discharge; Adverse Impact Assessment / Zone of Influence, Regulatory design storm: 1% annual chance (100-year) on ultimate development, NCTCOG iSWM Technical Manual hydrologic methods by reference

“Provide on-site controlled release of the 1- year, 24-hour storm event over a period of 24 hours (Streambank Protection Volume, SPV)”
Streambank Protection Option 3

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Dry detention pond, Underground detention, Integrated site design practices, iSWM structural controls (by reference to NCTCOG Technical Manuals)

“Dry Detention Pond / Underground Detention”
Tables 3.22-3.23