Lexington-Fayette Urban County Government
Stormwater Manual
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LFUCG Stormwater Manual 2026 effective May 1, 2026. Pipeline excerpt repair removed 4 unlocated citation(s).
Fields not found in document: design_criteria.required_hydrologic_hydraulic_software, document_metadata.state_code, document_metadata.version_or_edition, document_metadata.adoption_or_effective_date, document_metadata.last_revised_date
Other manuals in Kentucky: City of Frankfort, Kentucky, Kentucky, Louisville and Jefferson County Metropolitan Sewer District
Document Metadata
Jurisdiction level
City
“Lexington-Fayette”
Manual
State
Not found in document
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
“LFUCG Stormwater Manual”
Title
Design Criteria
Design storm return periods (years)
10-year, 100-year
“10-year, 100-year”
Quantity criteria
Water quality volume method
New development: Water Quality Volume — all runoff from impervious areas must pass through a stormwater control sized for the 90th percentile storm of 1.2 inches. Runoff Reduction — green infrastructure shall retain on-site a portion of runoff from impervious areas. Streambank protection: 24-hour detention of runoff volume for the 10-year 6-hour storm. Redevelopment criteria in Section 1.8 (20% reduction / treatment of baseline impervious).
“stormwater control sized for the 90th percentile storm of 1.2 inches”
Section 1.7.3
Peak flow calculation method(s)
Post-construction water quantity and quality criteria (Table 1-2), Detention for 10-year and 100-year development levels as specified, 100-year floodplain construction criteria
“24-hour detention of the runoff volume for the 10-year 6-hour storm”
Section 1.7
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
Green infrastructure practices, Extended detention basins, Underground detention, Post-construction BMPs (Chapter 10), Sediment ponds
“GREEN INFRASTRUCTURE PRACTICES / extended detention basins”
Table 1-7 / Chapter 10