City of Lawrence
Stormwater Management Criteria
CityKansashighNoCitations verified
Other manuals in Kansas: City of Overland Park, City of Topeka, City of Wichita and Sedgwick County, Kansas
Document Metadata
Jurisdiction level
City
No evidence cited
State
Kansas
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Version / edition
February 2025
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Adoption / effective date
2025-02
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Last revised date
2025-02
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Relationship to state manual
independent
No evidence cited
Design Criteria
Design storm return periods (years)
1-year, 2-year, 5-year, 10-year, 25-year, 50-year, 100-year
No evidence cited
Water quality volume method
Post-construction BMPs per City's adopted Mid-America Regional Council (MARC) and APWA Manual of Best Management Practices for Stormwater Quality (Sept. 2003 and updates) / Value Rating method. Quantity: detention when required by drainage study; Lake Alvamar watershed example release caps 2-yr 2.4 cfs/acre, 10-yr 3.2 cfs/acre, 100-yr 4.5 cfs/acre. Enclosed minor systems sized for 10-year; major/overflow checked for 100-year.
“City's adopted BMP manual. [Mid-America Regional Council and APWA Manual of Best Management Practices for Stormwater Quality - Sept. 2003 and subsequent updates]”
Post-construction BMP section
Peak flow calculation method(s)
Rational Method (≤300 acres / small detention), Hydrograph methods for larger basins / detention, Allowable release rates (Section 9.3), MARC/APWA BMP Manual for post-construction quality
“2 yr storm 2.4 cfs/acre 10 yr storm 3.2 cfs/acre 100 yr storm 4.5 cfs/acre”
Section 9.3 / Lake Alvamar criteria
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
MARC/APWA structural and non-structural BMPs, Detention facilities (dry/wet), Storm sewer / open channel conveyance, Parking excess BMPs per MARC manual
No evidence cited