City of Aurora
Storm Drainage Design and Technical Criteria
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Compare each cited field to the official PDF before relying on it. What this means
Aurora SDDTC Jan 2026; return periods inferred from typical MHFD/Aurora practice — confirm exact list from hydrology chapter.
Fields not found in document: design_criteria.required_hydrologic_hydraulic_software
Other manuals in Colorado: City of Boulder, City of Colorado Springs, City of Fort Collins, Colorado, Urban Drainage and Flood Control District (Denver Metro)
Document Metadata
Jurisdiction level
City
“City of Aurora”
Purpose
State
Colorado
“Aurora City Code Section 138-363”
Purpose
Version / edition
January 2026
“January 2026”
Cover / footer
Adoption / effective date
2026-01
“January 2026”
Cover
Last revised date
2026-01
“January 2026”
Cover
Relationship to state manual
independent
“Mile High Flood District's (MHFD) Urban Storm Drainage Criteria Manual”
Purpose
Design Criteria
Design storm return periods (years)
2-year, 5-year, 10-year, 25-year, 100-year
“detention / storm frequencies”
Design criteria chapters
Water quality volume method
Detention and water quality policies (Section 3.13). Incorporates Mile High Flood District (MHFD) Urban Storm Drainage Criteria Manual for criteria not in this Manual. Water quality SCMs and MEP facility certification requirements.
“When Detention and/or Water Quality is Required”
Section 3.13.1
Peak flow calculation method(s)
Rational Method runoff coefficients (Section 5.3.2), Detention sizing and variance criteria (Section 3.13), Hierarchy: Aurora Manual first, then MHFD Volumes 1–3
“Runoff Coefficients for Rational Method”
Section 5.3.2
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
Detention ponds, Water quality stormwater control measures (SCMs), MHFD-referenced treatment BMPs
“Water Quality SCMs”
Section 2.7 / 3.13