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Planning & Development - Storm Water & Infrastructure

Hamilton County Planning & Development

Storm Water Drainage System (SDS) Rules And Regulations

Governing The

Design, Construction, Operation, Maintenance,

And Use In The

County Of Hamilton Storm Drainage System

Effective January 17, 2007

By The Board Of Hamilton County Commissioners

  Click here for a summary of the changes to our Regulations

Table Of Contents

  EXHIBITS       PLATES      NOTES      DOWNLOAD

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ARTICLE I Definitions
ARTICLE II Control of Storm Sewers
ARTICLE III General Policy
ARTICLE IV Improvement Plans
ST 401 General
ST 402 Preparation of Subdivision Improvement Plans
ST 403 Flood Plain Limits in the Special Flood Hazard Areas
ST 404 Grading of Sites and Improvements
ST 405 Detention and/or Retention Basins
ST 406 Easements, Plats and Right-of-Entry Agreements
ST 407 Relation of Development to Existing Watercourse and Drainage Channels
ST 408 Relation of Development Between Existing Watercourses and Proposed Roadways
ST 409 Storm Sewer Profiles
ST 410 Datum for Elevations
ST 411 Grading Permit
ST 412 Grading Plan
ST 413 Cut and Fill Slopes
ST 414 Temporary Erosion and Sediment Control
ST 415 Compaction of Fills
ST 416 Mud and Debris
ST 417 Restrictions on Filling in Flood Plain Areas Within the Special Flood Hazard Areas
ST 418 Flood Damage Prevention Regulations
ST 419 "As-Built" Floor Elevations Within Flood Hazard Area

ARTICLE V Maintenance of the County Storm Sewer System

ARTICLE VI Unpolluted Waste Water

ARTICLE VII  Basic Design Criteria for Storm Sewers , Appurtenant Structures, Detention and Retention Basins
ST 701 Degree of Protection
ST 702 Determination of Quantity of Runoff
ST 703 Pipe Capacity and Design
ST 704 Minimum Pipe Size
ST 705 Minimum and Maximum Velocities
ST 706 Gradients of Pipe
ST 707 Hydraulic Gradients
ST 708 Manholes
ST 709 Private Storm Drain Connections to Publicly Maintained Storm Sewer Systems
ST 710 Catch Basins, Inlets and Outlets
ST 711 Detention Basin Design Criteria
ST 712 Retention Basin Design Criteria
ST 713 Specifications for Construction and Material

ARTICLE VIII Basic Design Criteria for Storm Water Open Channels, Culverts, and Bridges
ST 801 General
ST 802 Degree of Protection
ST 803 Determination of Quantity of Runoff
ST 804 Open Channel Capacity and Other Controls
ST 805 Ditch Design Criteria
ST 806 Open Channel Alterations or Relocation
ST 807 Swales, Ditches, Gutters (Paved and Unpaved)
ST 808 Emergency Overflow Ditches Required at Low Point Cul-de-sacs, Low Sag Areas
ST 809 Culvert Design Criteria and Controls
ST 810 Inlet Controls Placed in Open Channels
ST 811 Outlet Controls in Open Channels
ST 812 Large Culverts and Bridges
ST 813 Bridge Openings in Consoer-Townsend Streams
ST 814 Specifications for Construction and Material

ARTICLE IX Basic Design Criteria for Storm Water Pump Stations Located Outside of Special Flood Hazard Areas
ST 901 Drawings
ST 902 Design Criteria

ARTICLE X Storm Sewer Placement
ST 1000 Storm Sewer Placement
ST 1001 "As-Built" For Storm System

ARTICLE XI Improvement Plan Review Procedures
ST 1101 General
ST 1102 Concept Review
ST 1103 Concurrent Concept and Detailed Construction Drawing Review
ST 1104 Detailed Construction Drawing Review
ST 1105 Review/Initial Site Inspection Fees
ST 1106 Review Expiration Date

ARTICLE XII Inspection of Construction
ST 1201 Inspection of Construction
ST 1202 Construction Inspection Fees

ARTICLE XIII Board of Storm Drainage Variance and Appeals
ST 1301 Members of the Board
ST 1302 Appointments
ST 1303 County Employees to Assist the Board

ARTICLE XIV Powers of the Board
ST 1401 Variances and Appeals
ST 1402 Determination of the Board

ARTICLE XV Rules for the Conduct of Business
ST 1501 Adopting Rules
ST 1502 Appeals or Requests for Variance
ST 1503 Notice of Appeal or Request for a Variance

ARTICLE XVI Court of Common Pleas
ST 1601 Court of Common Pleas

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EXHIBIT NUMBER:

  1  Storm Drainage Notes  Additional Notes
  2  SDS Application Form
  3  Check List Design Aid For New Developments
  4  Charts and Computation Information Sheet
  5  Overland Flow Chart
  6  Nomograph for Solution of the Manning Formula
  7  Nomograph for Solution of the Manning Formula
  8  Storm Sewer Computation Sheet A (Example)
  8  Storm Sewer Computation Sheet A
  9  Storm Sewer Computation Sheet B
  10 Pavement Drainage Computation Sheet
  11 Catch Basin Design Sheet
  12 Private Storm Water Detention/Retention Maintenance Checklist
      13 NOT USED
      14 NOT USED
  15 Capacity of Std. CB-3A, CB-3, CB3-M, or CB-3-MH Grates in Pavement Sags
  16 Capacity of Std. CB-3A, CB-3, CB3-M, or CB-3-MH Curb Openings in Pavement Sags
  17 Capacity of Catch Basins with No Clogging
  18 Capacity of Catch Basins with No Clogging
  19 Capacity of Catch Basins with No Clogging
  20 Bulletin 45 Computation Sheet (Sheet No. 1)
  20 Bulletin 45 Computation Sheet (Sheet No. 2)
  20 Bulletin 45 Computation Sheet (Sheet No. 3)
  20 Bulletin 45 Computation Sheet (Sheet No. 4)
  21 Entrance Loss Coefficients, Outlet Control, Full or Partly Full Entrance Head Loss
  22 Headwater Depth for Concrete Pipe Culverts with Inlet Control
  23 Headwater Depth for Box Culverts with Inlet Controls
  24 Head for Concrete Pipe Culverts Flowing Full n = .012
  25 Head for Concrete Box Culverts Flowing Full n = .012
  26 Headwater Depth for Corrugated Metal Pipe Culverts w/ Inlet Control
  27 Head for Standard Corrugated Metal Pipe Culverts Flowing Full
  28 Culvert Design Form
  29 Typical Alternate Culvert Design
  30 Item 601, Rock Channel Protection at Culverts, Storm Sewer Outlets and Inlets
  31 Energy Dissipater - Stilling Basin Type
  32 Open Channel Symbols, Equations, and Geometric Formulas
  33 Detention/Retention Basin Computation Sheet (Sheet Nos. 1 thru 3)
  34 Detention Basin Controls (Sheet No. 1)
  34 Detention Basin Controls (Sheet No. 2)
  34 Detention Basin Controls (Sheet No. 3)
  34 Detention Basin Controls (Sheet No. 4)
  34 Detention Basin Controls (Sheet No. 5)
  35 Resolution Adopting Flood Damage Prevention Regulations
  36 Low Floor Elevation Certification Letter

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PLATE NUMBER:

  1 Pipe Bedding
  2 Reinforced Concrete Junction Chamber
  3 Straw Bale Dike
  4 Sloped Headwall
  5 Wing wall Headwall
  6 Requirements for Storm water Channels
  7 Storm water Channel Requirements
  8 Requirements for Storm water Channels
  9 Catch Basin-Manhole CB-3-MH
  10 Standard Drawing CB-3M, Standard Drawing CB-3D
  10 Standard Drawing CB-3M, Detailed Version
  11 Key Block, Anti-seep Collar
  12 Concrete Collars on Conduits
  13 Rainfall Intensity-Duration-Frequency Curves

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Copy and paste these notes in your AutoCAD project.

Exhibit 1 Storm Drainage Notes

Private Storm Sewer Notes to be shown on all private commercial projects.

Dedication of Permanent Private Drainage Easement for Storm Water Detention Notes.

Storm Sewer Construction within a Road Improvement Project Notes.

Public Works Notes to be shown on all Subdivision Record Plats.

Above Record Plat additional notes are indicated in BOLD text.

Additional Public Works Notes to be added to your existing Subdivision Record Plat drawing file.

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Save the Articles, Exhibits, and Plates to your computer for printing.

SDS Regulations Cover Graphic - 488KB

SDS Regulations Table of Contents - 80KB

SDS Regulations Articles - 647KB

SDS Regulations Exhibits - 7461KB

SDS Regulations Plates - 3065KB