:Base scour7 :Title MSHA Scour7 Program 1 About ABSCOUR=IDH_4005 1 How to Use Help=IDH_4008 1 Introduction 1 Abutment Scour Introduction=IDH_4010 1 Pier Local Scour Introduction=IDH_3200 1 Contraction Scour 1 Laursen's Contraction Scour Equation=IDH_4020 1 Upstream Approach Section=IDH_4030 1 Bridge (Contracted) Section=IDH_4040 1 Short Abutment Setback=IDH_4050 1 Long Abutment Setback=IDH_4060 1 Medium Abutment Setback=IDH_4062 1 Determination of Sediment Transport Parameter=IDH_4070 1 Adjustment of Overbank Flow Depth=IDH_4075 1 Adjustment for Pressure Flow=IDH_4065 1 Adjustment for Short Setback Abutment=IDH_4135 1 Abutment Scour 2 Adjustment Factor for Velocity=IDH_4080 2 Adjustment Factor for Spiral Flow at Abutment Toe=IDH_4090 2 Local Abutment Scour Equation - Vertical Wall Abutment=IDH_4100 2 Computation of Scour Depth for Open Channel Flow=IDH_4110 2 Computation of Scour Depth for Pressure Flow=IDH_4120 2 Adjustment for Short Setback Abutment=IDH_4135 2 Modification for Wingwall and Spillthrough Abutment=IDH_4125 2 Adjustment Factor for Embankment Angle=IDH_4095 1 Abutment Scour Equation for Approach Section Covered with Vegetation or Armored 2 Contraction Scour=IDH_4130 2 Abutment Scour=IDH_4140 1 Abutment Scour Computation Procedures 2 Step 1. Water Surface Profile=IDH_4150 2 Step 2. Development of Model Cross-Section=IDH_4160 2 Step 3. Hydraulic Data for Approach Section=IDH_4170 2 Step 4. Hydrulic Data for Bridge Section=IDH_4180 2 Step 5. Soil Data at Bridge Section=IDH_4190 2 Step 6. Bridge Geometry=IDH_4200 1 Pier Local Scour 2 HEC-18 Method=IDH_3210 2 Salim-Jones Method for Pile Group with Submerged Pile Cap=IDH_3220 2 Johnson's Method For Wide Pier in Shallow Water=IDH_3230 1 Plot Scour Cross-Section and Actual Cross-Section 2 Import Cross Section Data From HECRAS Project=IDH_4230 2 Draw Cross-Section and Scour Profile=IDH_4235 2 Guidance for Plot Scour Cross-Section=IDH_4210 1 References 2 References=IDH_4220