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ASCE Standard 62-63-64: Standard Guidelines for the Design, Installation, and Operation and Maintenance of Stormwater Impoundments, 2017
- CONTENTS
- STANDARD GUIDELINES FOR THE DESIGN OF STORMWATER IMPOUNDMENTS, ANSI/ASCE/EWRI 62-16 [Go to Page]
- CONTENTS [Go to Page]
- CHAPTER 1: SCOPE [Go to Page]
- 1.1 Applicable Standards
- 1.2 Scope of Chapters
- CHAPTER 2: DEFINITIONS [Go to Page]
- 2.1 General
- 2.2 Key Terms
- CHAPTER 3: OBJECTIVES OF STORMWATER IMPOUNDMENTS [Go to Page]
- 3.1 Flood Attenuation
- 3.2 Aesthetics
- 3.3 Multiuse Facilities
- 3.4 Water Quality
- 3.5 Underground Recharge
- CHAPTER 4: TYPES OF STORMWATER IMPOUNDMENTS [Go to Page]
- 4.1 Detention Facilities [Go to Page]
- 4.1.1 Surface Detention
- 4.1.2 Underground Detention
- 4.2 Retention Facilities
- 4.3 Combined Detention and Infiltration Facilities
- 4.4 Wetlands
- 4.5 Streets
- 4.6 Pipes or Conduits
- 4.7 Ditches, Swales, and Filter Strips
- 4.8 Pump-Evacuated Impoundments
- CHAPTER 5: REGULATIONS AND PERMITS [Go to Page]
- 5.1 Project-Permitting Strategies
- 5.2 Permitting and Regulatory Agency Requirements [Go to Page]
- 5.2.1 Local Government [Go to Page]
- 5.2.1.1 Water Quality Improvement Standards
- 5.2.1.2 Land Use Considerations
- 5.2.1.3 Hydromodification
- 5.2.1.4 Low-Impact Development (LID)
- 5.2.1.5 Floodplain Management Considerations/FEMA
- 5.2.2 State Government [Go to Page]
- 5.2.2.1 Environmental Impact Analysis
- 5.2.2.2 Dam Safety
- 5.2.2.3 Water Rights
- 5.2.2.4 Air Quality
- 5.2.3 U.S. Federal Government [Go to Page]
- 5.2.3.1 National Pollution Discharge Elimination System (NPDE)
- 5.2.3.2 Section 303 of the U.S. Clean Water Act
- 5.2.3.3 Section 401 of the U.S. Clean Water Act
- 5.2.3.4 Section 404 of the U.S. Clean Water Act
- 5.2.3.5 Section 10, U.S. Rivers and Harbors Act of 1899
- 5.2.3.6 National Historic Preservation Act (36 CFR, Part 800).
- 5.2.3.7 Project-Permitting Coordinator
- CHAPTER 6: DESIGN REQUIREMENTS [Go to Page]
- 6.1 Basic Requirements [Go to Page]
- 6.1.1 Land Use
- 6.1.2 Zoning Regulations
- 6.1.3 Other Governmental Regulations
- 6.1.4 Topography
- 6.1.5 Geography
- 6.1.6 Water Table
- 6.1.7 Geology
- 6.1.8 Water Source
- 6.1.9 Soils Information [Go to Page]
- 6.1.9.1 Soil Classification
- 6.1.9.2 Strata and Layers
- 6.1.9.3 Permeability and Drainability
- 6.1.9.4 Soil-Water Chemistry
- 6.1.9.5 Temperature
- 6.1.9.6 Vegetation
- 6.1.9.7 Embankment Construction
- 6.1.10 Environmental Factors [Go to Page]
- 6.1.10.1 Water Quality
- 6.1.10.2 Flooding
- 6.1.10.3 Wetlands
- 6.1.10.4 Principal or Primary Aquifers
- 6.1.11 Physical Constraints
- CHAPTER 7: SAFETY [Go to Page]
- 7.1 Structural Issues
- 7.2 Mosquito Control
- 7.3 Physical Security
- CHAPTER 8: INFLOW HYDROLOGY [Go to Page]
- 8.1 General Information
- 8.2 Data Required [Go to Page]
- 8.2.1 Rainfall
- 8.2.2 Factors Affecting Runoff [Go to Page]
- 8.2.2.1 Runoff Coefficient
- 8.2.2.2 Runoff Curve Number
- 8.2.2.3 Time of Concentration/Travel Time
- 8.2.3 Unit Hydrograph [Go to Page]
- 8.2.3.1 NRCS Unit Hydrograph
- 8.2.3.2 Clark Unit Hydrograph
- 8.3 Hydrologic Procedures for Computing Inflow Hydrographs [Go to Page]
- 8.3.1 Rational Method
- 8.3.2 NRCS CN Method
- 8.3.3 Clark Unit Hydrograph Method
- 8.3.4 Hydrologic Simulation Program-Fortran
- 8.3.5 Stormwater Management Model
- CHAPTER 9: HYDRAULIC DESIGN [Go to Page]
- 9.1 Hydraulic Principles [Go to Page]
- 9.1.1 Flow Classification
- 9.1.2 Energy Principle
- 9.1.3 Momentum Principle
- 9.2 Elements of Hydraulic Analysis [Go to Page]
- 9.2.1 Normal Depth Analysis
- 9.2.2 Hydraulic Jump
- 9.2.3 Hydraulic Head Losses Due to Friction
- 9.2.4 Form Losses
- 9.3 Hydraulic Structures [Go to Page]
- 9.3.1 Culvert Spillways [Go to Page]
- 9.3.1.1 Opening Size Determination
- 9.3.1.2 Special Considerations
- 9.3.2 Lined Outlet Channel
- 9.3.3 Straight Drop Spillway
- 9.3.4 Weir Spillway [Go to Page]
- 9.3.4.1 Broad-Crested and Ogee Crest Weir
- 9.3.4.2 Sharp-Crested Weir
- 9.3.5 Conduit or Tunnel Spillways
- 9.3.6 Flip or Roller Bucket Spillways
- 9.3.7 Impact Stilling Basin
- 9.3.8 Hydraulic Jump Stilling Basins
- 9.3.9 Baffled Chute Spillway
- 9.3.10 Energy Dissipation Headwalls
- 9.3.11 Impoundment Berms and Embankments
- 9.3.12 Emergency Spillway Flows over Impoundment Berms and Embankments [Go to Page]
- 9.3.12.1 Articulated Concrete Block (ACB) Mattress
- 9.3.12.2 Rock Riprap-Lined Embankment
- 9.3.12.3 Open Channel Flow Spillway
- 9.4 Hydraulic Analysis Procedures
- 9.5 Computer Models
- CHAPTER 10: ROUTING [Go to Page]
- 10.1 Conservation of Mass
- 10.2 Difference Formulation
- 10.3 Inflow
- 10.4 Storage-Elevation Relationship
- 10.5 Outflow-Elevation Relationship
- 10.6 Analytical and Generalized Numerical Solutions
- 10.7 Relation to Other Event-Based Methods
- 10.8 Storage and Outflow Characteristics and Data Arrays
- 10.9 Practical Applications [Go to Page]
- 10.9.1 Successive Trapezoidal Hydrographs
- 10.9.2 Locus-of-Maxima Method
- 10.9.3 SCS/NRDC Method
- 10.10 More Sophisticated Methods
- 10.11 Field Monitoring and the Use of Models
- CHAPTER 11: WATER QUALITY [Go to Page]
- 11.1 Stormwater Pollutants [Go to Page]
- 11.1.1 Nutrients
- 11.1.2 Sediment
- 11.1.3 Pathogens
- 11.1.4 Oxygen-Demanding Organic Materials
- 11.1.5 Petroleum Hydrocarbons
- 11.1.6 Metals
- 11.1.7 Organic Compounds
- 11.1.8 Deicing Chemicals and Other Cold-Weather Sources
- 11.1.9 Trash and Debris
- 11.1.10 Other Issues
- 11.2 Water Quality Considerations in Urban Impoundment Design [Go to Page]
- 11.2.1 Configuration of Stormwater Impoundments
- 11.2.2 Water Quality Volume
- 11.3 Stormwater Control Measures (Best Management Practices) [Go to Page]
- 11.3.1 Infiltration Systems
- 11.3.2 Detention Systems
- 11.3.3 Retention Systems
- 11.3.4 Wetlands
- 11.3.5 Filtration Systems
- 11.3.6 Vegetated Systems (Biofilters)
- 11.3.7 Impoundment Aeration
- 11.3.8 Dosing
- 11.3.9 Skimming
- 11.3.10 Floating Vegetated Islands
- 11.3.11 Nonstructural BMPs
- 11.4 SUSTAIN Model
- CHAPTER 12: REFERENCES
- STANDARD GUIDELINES FOR THE INSTALLATION OF STORMWATER IMPOUNDMENTS, ANSI/ASCE/EWRI 63-16 [Go to Page]
- CONTENTS [Go to Page]
- CHAPTER 1: SCOPE
- CHAPTER 2: DEFINITIONS [Go to Page]
- 2.1 General
- 2.2 Terms
- CHAPTER 3: CONTRACT DOCUMENTS [Go to Page]
- 3.1 General
- 3.2 Plans
- 3.3 Specifications
- 3.4 Other
- CHAPTER 4: BEST MANAGEMENT PRACTICES
- CHAPTER 5: SITE INVESTIGATION [Go to Page]
- 5.1 General
- 5.2 Surface Features
- 5.3 Subsurface Features [Go to Page]
- 5.3.1 Underground Utilities
- 5.3.2 Geologic Conditions
- CHAPTER 6: INSTALLATION [Go to Page]
- 6.1 General
- 6.2 Safety
- 6.3 Soil Erosion and Sediment Control
- 6.4 Site Preparation
- 6.5 Materials Receiving, Handling, and Storage
- 6.6 Line and Grade
- 6.7 Excavation and Earthmoving [Go to Page]
- 6.7.1 Excavation Limits
- 6.7.2 Earthmoving Limits
- 6.7.3 Handling of Excavated Material Including Excavation and Earthmoving Materials
- 6.7.4 Shoring and Sheathing
- 6.7.5 Trench Boxes [Go to Page]
- 6.7.5.1 Subtrench Construction
- 6.7.5.2 Regular Trench Construction
- 6.7.6 Dewatering
- 6.8 Bedding Preparation
- 6.9 Placement of Underground Utilities and Associated Appurtenances [Go to Page]
- 6.9.1 Pipe
- 6.10 Backfill
- 6.11 Site Restoration
- CHAPTER 7: FENCING
- CHAPTER 8: INSPECTION [Go to Page]
- 8.1 General
- 8.2 Inspection of Materials [Go to Page]
- 8.2.1 Prefabricated and/or Premanufactured Components
- 8.2.2 Bedding, Backfill, and Envelope Materials
- 8.2.3 Storage of Materials
- 8.3 Inspection of Equipment
- 8.4 Inspection of Construction [Go to Page]
- 8.4.1 Construction Layout
- 8.4.2 Excavating, Dewatering, and Earthmoving Operations
- 8.4.3 Installation
- 8.4.4 Backfilling
- 8.4.5 Televising
- 8.4.6 Geotechnical Testing
- 8.4.7 Nongeotechnical Testing
- 8.4.8 Safety
- 8.4.9 Suitability and Conformance
- 8.5 Acceptance of Construction
- 8.6 Recording Observations
- 8.7 Record Drawings
- CHAPTER 9: APPLICABLE DOCUMENTS/REFERENCES
- APPENDIX 1: STORMWATER IMPOUNDMENTS INSPECTOR’S CHECKLISTS
- STANDARD GUIDELINES FOR THE OPERATION AND MAINTENANCE OF STORMWATER IMPOUNDMENTS, ANSI/ASCE/EWRI 64-16 [Go to Page]
- CONTENTS [Go to Page]
- CHAPTER 1: SCOPE
- CHAPTER 2: DEFINITIONS [Go to Page]
- 2.1 General
- 2.2 Terms
- CHAPTER 3: OPERATION AND MAINTENANCE PLAN [Go to Page]
- 3.1 General
- 3.2 Scope
- 3.3 Responsibilities
- 3.4 Design Criteria
- 3.5 Normal Operating Procedures
- 3.6 Abnormal Operating Procedures [Go to Page]
- 3.6.1 Line Blockage
- 3.6.2 Component Failure
- 3.6.3 Acts of God
- 3.7 Maintenance Procedures [Go to Page]
- 3.7.1 Corrective Maintenance
- 3.7.2 Preventive Maintenance
- 3.7.3 Checklists
- 3.7.4 Routine System Inspections
- 3.8 Safety [Go to Page]
- 3.8.1 Mechanical
- 3.8.2 Electrical
- 3.8.3 Underground Procedures
- 3.8.4 Aboveground Procedures
- 3.8.5 Other Safety Considerations
- CHAPTER 4: WATER QUALITY [Go to Page]
- 4.1 General
- 4.2 Environmental Indicators
- 4.3 Water Quality Standards
- CHAPTER 5: PERIODIC INSPECTION [Go to Page]
- 5.1 General
- 5.2 Underground Safety
- 5.3 Aboveground Safety
- 5.4 Inspection
- CHAPTER 6: MAINTENANCE [Go to Page]
- 6.1 General
- 6.2 Cleaning
- 6.3 Mechanical and Electrical
- 6.4 Repairs and Rehabilitation
- CHAPTER 7: APPLICABLE DOCUMENTS/REFERENCES
- INDEX [Go to Page]