“Modern Sewer Design” is the result of a - Jensen Bridge & Supply

ContentsPreface....................................................................................................................iiiivChapter 1Chapter 2Chapter 3STEEL SEWER PRODUCTSIntroduction ........................................................................................1Corrugated Steel Pipe and Structural Plate Data ..............................1Corrugated Steel Pipe ........................................................................1Structural Plate Pipe ..........................................................................1Perforated Pipe ................................................................................12Arch Channels ..................................................................................22CSP Coupling Systems ....................................................................24CSP Field Joints ..............................................................................24CSP Fittings and Sewer Appurtenances ..........................................27Fittings..............................................................................................27Saddle Branch ..................................................................................34Transitions ........................................................................................35Manholes and Catch Basins ............................................................36Manholes and Catch Basin Tops ......................................................37Manhole Reinforcing........................................................................38Manhole Slip Joints..........................................................................38Manhole Ladder................................................................................39Manhole Steps ..................................................................................40CSP Slotted Drain Inlets ..................................................................41CSP Concrete-Lined Pipe ................................................................41Spiral Rib Steel Pipe ........................................................................42Double Wall (Steel Lined)................................................................42Pipe Materials, Protective Coatings, Linings and Pavings ..............43Sheets and Coils ..............................................................................43Pipe ..................................................................................................43STORM DRAINAGE PLANNINGIntroduction ......................................................................................47Conceptual Design............................................................................49The Minor System............................................................................49The Major System ............................................................................49Methods to Reduce Quantity ofRunoff and Minimize Pollution........................................................50Surface Infiltration............................................................................51Effects on Water Quality ..................................................................53Foundation Drains ............................................................................53Environmental Considerations of Runoff Waters ............................55Ground Water Quality Process ........................................................58Ground Water Monitoring ................................................................61HYDROLOGYIntroduction ......................................................................................63Estimation of Rainfall ......................................................................64Rainfall Intensity- Duration Frequency Curves ..............................65Rainfall Hyetographs........................................................................65Synthetic Rainfall Hyetographs........................................................67Uniform Rainfall ..............................................................................67The Chicago Hyetograph..................................................................68The Huff Rainfall Distribution Curves ............................................69SCS Storm Distributions ..................................................................70Estimation of Effective Rainfall ......................................................71The Runoff Coefficient C (Rational Method) ..................................72The Soil Conservation Service Method ..........................................73The Horton Infiltration Equation......................................................75Comparison of SCS and Horton Methods........................................78Establishing the Time of Concentration ..........................................79Factors Affecting Time of Concentration ........................................81