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City of Tulsa Stormwater Management Criteria Manual

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City of Tulsa Stormwater Management Criteria Manual SSTORMWATERTORMWATER MMANAGEMENTANAGEMENT CCRITERIARITERIA MMANUALANUAL March 2017 Prepared by: City of Tulsa - Engineering Services Department 2317 South Jackson Avenue Tulsa, OK 74107 Table of Contents Chapter 100 EXECUTIVE SUMMARY .............................................................. 100 101 INTRODUCTION .................................................................................................... 100 101.0 Manual Contents .................................................................... 100 102 ADMINISTRATIVE PROVISIONS ....................................................................... 101 102.1 General Provisions ................................................................. 101 102.2 Stormwater Policy and Standards ......................................... 101 102.3 Drainage Planning Submittal Requirements .......................... 102 102.3.1 Drainage and Detention Report Requirements ...................... 102 103 TECHNICAL PROVISIONS .................................................................................. 102 103.1 Hydrology Analysis .......................................................................... 102 103.2 Hydraulic Analysis ........................................................................... 102 103.3 Street Drainage, Storm Sewer Inlets and Pipe Design ..................... 103 103.4 Detention Ponds ............................................................................... 103 104 OTHER REQUIREMENTS .................................................................................... 104 104.1 Construction- Stormwater Pollution Prevention Plan ................................ 104 104.2 Maintenance and Design ....................................................... 104 Chapter 200 GENERAL PROVISIONS ............................................................. 200 201 APPLICATION ........................................................................................................ 200 202 PURPOSE AND INTENT ....................................................................................... 200 203 ENACTMENT AUTHORITY ................................................................................. 200 204 AMENDMENT AND REVISIONS ........................................................................ 200 205 ENFORCEMENT RESPONSIBILITY ................................................................... 200 206 INTERPRETATION ................................................................................................ 201 Minimum Standards ................................................................................................. 201 Other Regulations ................................................................................................. 201 Other Agreements ................................................................................................. 201 207 VARIANCES ........................................................................................................... 201 Variance Procedure ................................................................................................. 202 Technical Variance Procedure.................................................................................. 202 208 APPEALS ................................................................................................................. 202 209 REVIEW AND APPROVAL .................................................................................. 202 Chapter 300 STORMWATER POLICY AND STANDARDS ............................. 300 301 GOALS .................................................................................................................... 300 302 PRINCIPLES ............................................................................................................ 300 Stormwater Management Criteria Manual i March 2017 Table of Contents 302.1 Urban Sub-System.................................................................. 300 302.2 Multi-Purpose Resource ......................................................... 301 302.3 Jurisdictional Boundaries ....................................................... 301 302.4 Preventive Measures .............................................................. 302 303 WATERSHED DEVELOPMENT ORDINANCE ................................................. 302 303.1 Purpose ................................................................................... 302 303.2 Drainage Policies .................................................................... 302 304 REGIONAL AND LOCAL PLANNING ............................................................... 303 304.1 Stormwater Management Master Drainage Plans ................. 303 304.2 Maintenance Access ............................................................... 304 304.3 Water Quality Control ............................................................ 305 304.4 Watershed Transfer of Storm Runoff .................................... 306 304.5 Acceptance of Existing Stormwater Drainage Systems ........................... 307 305 TECHNICAL STANDARDS AND CRITERIA .................................................... 308 305.1 Drainage Design and Technical Criteria ................................ 308 305.2 Drainage Construction Plans .................................................. 308 305.3 Storm Runoff Determination ................................................. 308 305.4 Drainage Facility Performance .............................................. 309 305.5 Roadway Drainage Systems ................................................... 311 306 DRAINAGE IMPROVEMENT RESPONSIBILITY ............................................. 311 306.1 Developer Responsibility ....................................................... 311 306.2 Property Owner Responsibility .............................................. 312 306.3 City of Tulsa Responsibility ................................................... 312 306.4 Engineer Responsibility ......................................................... 312 307 DEVELOPMENT POLICY ..................................................................................... 313 307.1 Downstream Effects ............................................................... 313 307.2 Downstream Drainage System Capacity ............................... 313 307.3 Fee-In-Lieu of Detention ........................................................ 313 307.4 Site Drainage Plans ................................................................ 313 308 LOT DRAINAGE .................................................................................................... 313 308.1 Lot Drainage for New Developments .................................... 314 308.2 Lot Drainage in Existing Subdivisions ................................... 315 Chapter 400 FLOODPLAIN MANAGEMENT POLICY AND STANDARDS .................. 400 401 GOALS .................................................................................................................... 400 402 BACKGROUND ...................................................................................................... 400 403 FLOODPLAIN MAP AMENDMENTS AND REVISIONS ................................. 402 404 PERMITTING .......................................................................................................... 407 Chapter 500 DRAINAGE AND DETENTION REPORT REQUIREMENTS ...... 500 501 INTRODUCTION .................................................................................................... 500 Stormwater Management Criteria Manual ii March 2017 Table of Contents 502 FULL DRAINAGE & DETENTION REPORT REQUIREMENTS ..................... 500 502.1 Summary Statement ............................................................... 500 502.2 Cover Letter ............................................................................ 500 502.3 Report Contents ...................................................................... 501 502.4 Required Report Exhibits ....................................................... 504 503 SINGLE LOT DRAINAGE RESIDENTIAL REQUIREMENTS ......................... 505 503.1 General Requirements ............................................................. 506 503.2 Cover Letter ............................................................................ 506 503.3 On-Site Drainage Plan ............................................................ 507 Chapter 600 RAINFALL AND RUNOFF ............................................................ 600 601 INTRODUCTION .................................................................................................... 600 602 HEC-HMS COMPUTER MODEL ........................................................................ 600 602.1 Introduction ............................................................................ 600 602.2 Stream Network Modeling ..................................................... 600 603 DESIGN STORM ..................................................................................................... 601 603.1 Rainfall Depth-Duration Relationship – National Oceanic and Atmospheric Administration (NOAA) ............................................... 601 603.2 Storm Area ............................................................................. 602 603.3 Storm Duration ....................................................................... 602 603.4 Balanced Rainfall Distribution ............................................... 602 603.5 Computational Time Interval ................................................
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