ConnDOT: Drainage Manual Chapters 11 & 12

Drainage Manual Chapters 11 & 12

 
 
Chapter 11 
Storm Drainage Systems Overview, Introduction, Inadequate Drainage, System Planning, Costs
Symbols And Definitions
Concept Definitions
System Planning Introduction, General Design Approach, Required Data, Preliminary Sketch, Special Considerations, ConnDEP Requirements, Documentation
Hydrology Introduction, Rational Method, Runoff Coefficient, Rainfall Intensity, Time of Concentration, Detention Storage
Pavement Drainage Introduction, Longitudinal Slope, Cross Slope,  Roadside and Median Channels,  Bridge Decks, Hydroplaning, Underdrains
Design Frequency and Spread
Inlets General, Standard ConnDOT Inlets, Standard ConnDOT Grates, Inlets on Grade, Inlets at Low Points, Curbing, Inlet Locations
Gutter Flow Calculations Introduction, Manning's n for Pavements, Uniform Cross Slope Procedure,  Composite Gutter Sections Procedure,  V Type Gutter Sections Procedure, Grate Inlets in a Sag, Slotted Inlets on Grade, Slotted Inlets in a Sag,   Inlet Spacing Computations (Gutter Flow Analysis),  Low Point Analysis Computations
Manholes Location, Spacing, Standard ConnDOT Manholes (Standard Sheet M507-A),  Sizing 
Storm Drains Introduction,  General Guidelines,  Outlets,  Bridge Deck Outlets,  Storm Drainage System Design Procedures,  Check Storm for Sag Point,  Hydraulic Capacity
Hydraulic Grade Line


  Introduction,  Tailwater, Exit Loss,  Bend Loss,  Pipe Friction Losses,  Structure Losses, Hydraulic Grade Line Design Procedure
Outlet Protection Assessment of Erosion Potential, Types of Outlet Protection, Design Criteria, Tailwater Depth, Apron Dimensions, Preformed Scour Hole, Design Procedure for Riprap Outlet Protection
References
Outlet Protection Form
Typical Grading for Type "C-L" Catch Basins Located in a Swale 
Water Quality Flow (WQF) and Flow Diversion Guidance
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Chapter 12
Pump Stations Overview, Introduction, Design Considerations
Symbols And Definitions
Design Considerations Location, Hydrology, Collection Systems, Station Types, Pump Types, Submergence, Water-Level Sensors, Power, Discharge System, Flap Gates And Valving, Trash Racks And Grit Chambers, Ventilation, Roof Hatches And Monorails, Equipment Certification And Testing, Monitoring, Hazardous Spills
Additional Considerations Construction, Maintenance, Retrofitting Stations, Safety, Environmental
Recommend Design Criteria Objective, Station Type And Depth, Power, Discharge Head And System Curve, Main Pumps, Standby/Spare Pumps, Storage, Sump Pumps, Wet Well Design, Stormwater Pump Station Storage
Design Procedure Introduction, Pump Station Design
Documentation
Philosophy
References


Content Last Modified on 9/5/2007 11:41:30 AM