Stormwater Atlas

City of McKinney

Engineering Design Manual

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Document Metadata

Jurisdiction level
City

City of McKinney

Title

State
Not found in document

No evidence cited

Version / edition
Engineering Design Manual (Rev. — DocumentCenter 16490)

Engineering Design Manual

Title

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

City Engineering Design Manual / iSWM Technical Manuals

References

Design Criteria

Design storm return periods (years)
5-year, 100-year

fully developed 5-year and 100-year flows

Section 4

Water quality volume method
Section 4 Stormwater Design Requirements cover detention basins and fully developed 100-year criteria. Section 8 Environmental Design Requirements include Post Construction Stormwater Quality Plan permanent controls and reference iSWM Technical Manual structural control screening.

Post Construction Stormwater Quality Plan - Permanent Controls / iSWM Technical Manual

Section 8.4

Peak flow calculation method(s)
Fully developed 100-year design storm / water surface elevation, 5-year and 100-year open-channel flows, Modified Rational Method detention pond design, iSWM Technical Manuals referenced for BMPs

Modified Rational Method Detention Pond Design

Section 4.10 / figures

Hydrologic/hydraulic software
Not found in document

No evidence cited

Approved BMP categories
Detention / retention facilities, iSWM structural controls / BMPs, Post-construction stormwater quality permanent controls

Refer to the Rights-of-Way Management Ordinance (Section 90) and Rights-of-Way Construction and Permitting Procedures Manual available online at mckinneytexas.org. Contact the Public Works Department regarding ROW permits at row@mckinneytexas.org or (972)547-1033. ER

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