CITY UTILITIES DESIGN STANDARDS MANUAL
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1 CITY UTILITIES DESIGN STANDARDS MANUAL () September 2017
2 Page Chapter 1 Acronyms and Definitions 1.01 Purpose Acronyms Definitions 3 Chapter 2 Introduction 2.01 Purpose Applicability Variance from Standards Organization of Standards Materials Specifications 2 Chapter 3 Drawings and Submittals 3.01 Purpose Management Requirements 1 1. Minimum Plant Sheet Elements 1 2. Management Report 2 3. Operations and Maintenance Manual (O&M) Erosion Control Submittal Requirements 3 1. Construction Plan Elements 3 2. Construction Components 4 Chapter 4 Special Discharges 4.01 Purpose Policies 1 1. Sump pumps 1 2. Geothermal 1 3. Curb outlets 1 4. Environmental Catch Basins 1 5. Dumpster Leaks 2 6. Infiltration Practices 2 7. Below Grade Discharges 2 September 13,
3 4.03 Floodplain Ordinance City of Fort Wayne Ordinance 2 Chapter 5 Hydrology 5.01 Purpose Rainfall 1 1. Rainfall Distributions 3 2. Design Storm Frequencies Runoff 4 1. Time of Concentration Calculation 4 2. Peak Flow Calculations 4 3. Hydrograph Generation Methods Offsite Hydrologic Analysis 7 Chapter 6 Storm Sewers 6.01 Purpose Design Storms 1 1. Minor Event Design Storm 1 2. Major Event Design Storm Alignment Criteria 2 1. Placement in Existing Rights-of-Way and Easement 2 2. Minimum Distance from Water Lines 3 3. Minimum Distance from Additional Utilities Hydraulic Design 3 1. Flow Equations and Storm Sewer Sizing 4 2. Hydraulic Grade Line 4 3. Headlosses 5 4. Velocity 5 5. Slopes Construction Materials Pipe Size Manholes 6 1. Manholes 6 2. Spacing 6 September 13,
4 3. Manhole Diameter 6 4. Transition Alignment 7 5. Transitions in Grade 7 6. Transition in Pipe Diameter 7 7. Bench 8 8. Adjustment Rings Outlets 8 1. Erosion Protection at Outlets Non-Gravity Flow Systems Checklists and Design Aids 9 Chapter 7 Inlets 7.01 Purpose Standard Inlets Inlet Placement Inlet Hydraulic Capacity 3 1. Introduction 3 2. Sump Condition 4 3. Continuous Grade Condition Gutter Flow 8 1. Introduction 8 2. Allowable Use of Streets for Flows 8 3. Gutter Flow Capacity 9 Chapter 8 Culverts 8.01 Purpose General Design 1 1. Federal Highway Administration 1 2. Indiana Department of Transportation Hydraulic Design 1 1. Design Program 1 2. Backwater 1 3. Overland Flow Routes 2 4. Minimum Diameter 2 September 13,
5 5. Flow Velocity Design Storm (see Section 3, Hydrology) 1. Public Culverts 2 2. Private Culverts Sump Culverts Structural Design 3 1. Loading 3 2. Installation Depth 3 3. Bedding and Backfill 3 4. Floatation and Anchoring Culvert Length Determination Inlet and Outlet Configuration 3 1. Roadside Safety 4 2. Trash Racks 4 3. Erosion Control Environmental Considerations Permitting 4 1. Public Agencies Culvert Materials 5 Chapter 9 Open Channels 9.01 Purpose 1 1. Natural Channels 1 2. Constructed Channels Channel Geometrics 1 1. V Shaped Channels 1 2. Swales 1 3. Trapezoidal Channels 2 4. Composite Channel Channel Side Slopes Channel Slope Channel Linings 3 1. Grass Lined Channels 3 September 13,
6 2. Riprap or Rock Lined Channels 3 3. Concrete Lined Channels 4 4. Manufactured Linings Easements Public Safety General Design Requirements 5 1. Design Storm 5 2. Channel Lining and Stability 5 3. Channel Slope (Gradient) Hydraulic Design 5 1. Uniform Steady Flow Equations 5 2. Flow Regime Permitting 7 Chapter 10 Crossings Purpose General Design Considerations 1 1. Jurisdictional Agencies 1 2. Hydraulic Capacity 1 3. Minimum Pipe Diameter 1 4. Structural Design 1 5. Skew Angle 1 6. Culvert Length Roadway Crossing Design 2 1. Hydraulic Design Length Design 2 1. General 2 2. Regulated Drain Crossings 2 3. Length Calculations for Perpendicular Crossings of Roadways or Railroads 2 4. Length Calculations for Skewed Crossings of Roadways or Railroads Roadway Safety 3 1. Clear Zone 3 2. Guardrail and Handrail 3 September 13,
7 10.06 Construction 3 1. Traffic Control 3 2. Open Trench Installation / Jacking and Boring Permitting 3 1. Private Agencies 3 2. Public Agencies 3 Chapter 11 Management Purpose Management Plans (SMP) for New Development Management Plans (SMP) for Redevelopments Acceptable Quality Calculation Methods Reduced Runoff Method for Quality Calculations Volume Based Method Quality Calculations SCS Method for Proprietary Quality Units (SQUs) Detention Calculations 7 1. Rational Method 7 2. Hydrograph Method Acceptable Types of Storage Facilities Design Standards for Detention and Retention Basins 8 1. Grading Requirements 8 2. Use of Retaining Walls 8 3. Emergency Spillway 8 4. Freeboard 9 5. Minimum Flood Protection Grade 9 6. Pipe Outfalls into the Basin 9 7. Basin Control Structures Public Protection Guidelines Landscaping Guidelines Multi use configuration Pretreatment Forebays Biofilters 13 September 13,
8 11.12 Design Standards Unique to Wet Basins Design Considerations Operation and Maintenance Manual Considerations Design Standards Unique to Dry Basins Design Considerations Operation and Maintenance Manual Considerations Design Standards for Retention Basins Design Standards for Constructed Wetlands Design Considerations Operation and Maintenance Considerations Design Standards for Constructed Bioretention Basins Design Considerations Operation and Maintenance Considerations Design Standards for Water Quality Swales Design Considerations Operation and Maintenance Considerations Design Standards Basins Adjoining Open Channels Design Standards for Parking Lot Detention Depth Limitations Parking Lot Detention Outlet Configuration Surcharging Parking Lot Maintenance Design Standards for Underground Detention Materials Configuration Basin Control Structure Configuration Maintenance Access Porous Pavement System Requirements Components Site Requirements Storage Volume 29 September 13,
9 4. Outlet Maintenance Design Considerations for Quality Operation and Maintenance Considerations Design Standards for Rainwater Harvesting Methods Design requirements Operation and Maintenance Considerations 32 Chapter 12 Erosion Control Purpose Authority Principles Regulatory and Technical Standards Best Management Practices 2 1. A Minimum 50 foot Buffer 3 2. Site Phasing 3 3. Topsoil Stockpiling 4 4. Site Management 5 5. Temporary Construction Entrance 5 6. Street Maintenance 5 7. Concrete Washout Area 5 8. Contaminated Material Maintenance 5 9. Bank and Pipe Stabilization Detention and Post Construction Water Quality BMP Sequencing Inlet Protection Temporary Perimeter Protection Silt Fence Temporary Perimeter Protection Filter Sock Sediment Control Dewatering Bag River/Lake Shore Protection Erosion Control Blanket Straw Bales Temporary Rock Check Dams BMP Operation and Maintenance Manual 9 September 13,
10 12.06 Storm Water Pollution Prevention Plan (PP) 9 1. PP Submittals and Approvals 9 2. Amending an Existing PP PP Procedural Steps Inspections Enforcement 12 September 13,
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