City of Knoxville

Best Management Practices (BMP) Manual

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Compare each cited field to the official PDF before relying on it. What this means

Combined KnoxvilleBMP.pdf (Jan 2018). First-flush criteria from ordinance citations in manual; peak-rate return periods not fully tabulated in extracted text. Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: document_metadata.adoption_or_effective_date, design_criteria.design_storm_return_periods_years, design_criteria.required_hydrologic_hydraulic_software, document_metadata.state_code

Other manuals in Tennessee: City of Chattanooga, City of Clarksville, City of Franklin, City of Memphis and Shelby County, City of Murfreesboro, Metropolitan Nashville and Davidson County, Tennessee, Tennessee Department of Environment and Conservation

Document Metadata

Jurisdiction level

City

“City of Knoxville”
Cover

State

Not found in document

No evidence cited

Version / edition

January 2018

“January 2018”
Title page

Adoption / effective date

Not found in document

No evidence cited

Last revised date

2018-01-01

“January 2018”
Title page

Relationship to state manual

independent

“Knoxville Stormwater and Street Ordinance (Chapter 22.5)”
Introduction

Design Criteria

Design storm return periods (years)

Not found in document

No evidence cited

Water quality volume method

First flush volume = 0.5 inch of direct runoff over the entire contributing drainage area (min 4,500 cf), released over a minimum of 24 hours (Knoxville Stormwater and Street Ordinance Ch. 22.5). Structural ST BMPs include dry/wet detention, infiltration, wetlands, filter strips/swales, water quality inlets, oil/water separators.

“first flush volume is defined as one-half inch of direct runoff over the entire contributing drainage area”
Chapter 4

Peak flow calculation method(s)

Detention computations (ST-10), HEC-1 / HEC-HMS examples (ST-12), Ordinance-defined detention storms (Ch. 22.5)

“ST-10 Detention Computations; ST-12 Detention Example for HEC-1 and HEC-HMS”
ST section TOC

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Dry detention basin, Wet detention basin, Infiltration systems, Constructed wetlands, Filter strips and swales, Water quality / media filtration inlets, Oil / water separator, Underground detention (special permission), Erosion and sediment control BMPs

“ST-01 Dry Detention Basin; ST-02 Wet Detention Basin; ST-03 Infiltration Systems”
ST section