?_?o6/&;)Lz/About ABSCOURHow to Use HelpIntroductionAbutment Scour IntroductionPier Local Scour IntroductionContraction ScourLaursen's Contraction Scour EquationUpstream Approach Section Bridge (Contracted) Section Short Abutment Setback Long Abutment Setback Medium Abutment Setback Determination of Sediment Transport ParameterAdjustment of Overbank Flow DepthAdjustment for Pressure FlowAdjustment for Short Setback AbutmentAbutment ScourAdjustment Factor for VelocityAdjustment Factor for Spiral Flow at Abutment ToeLocal Abutment Scour Equation - Vertical Wall AbutmentComputation of Scour Depth for Open Channel FlowComputation of Scour Depth for Pressure FlowAdjustment for Short Setback AbutmentModification for Wingwall and Spillthrough AbutmentAdjustment Factor for Embankment AnglepMSHA Scour7 Programqscour7.HLP Adjustment Factor for VelocityAdjustment Factor for Spiral Flow at Abutment ToeLocal Abutment Scour Equation - Vertical Wall AbutmentComputation of Scour Depth for Open Channel FlowComputation of Scour Depth for Pressure FlowAdjustment for Short Setback AbutmentModification for Wingwall and Spillthrough AbutmentAdjustment Factor for Embankment AngleAbutment Scour Equation for Approach Section Covered with Vegetation or ArmoredContraction ScourAbutment ScourAbutment Scour Computation ProceduresStep 1. Water Surface ProfileStep 2. Development of Model Cross-Section Step 3. Hydraulic Data for Approach Section!Step 4. Hydrulic Data for Bridge Section"Step 5. Soil Data at Bridge Section#Step 6. Bridge Geometry$Pier Local Scour%HEC-18 Method&Salim-Jones Method for Pile Group with Submerged Pile Cap'Johnson's Method For Wide Pier in Shallow WaterpMSHA Scour7 Programqscour7.HLP0Abutment ScourAbutment Scour Computation ProceduresStep 1. Water Surface ProfileStep 2. Development of Model Cross-Section Step 3. Hydraulic Data for Approach Section!Step 4. Hydrulic Data for Bridge Section"Step 5. Soil Data at Bridge Section#Step 6. Bridge Geometry$Pier Local Scour%HEC-18 Method&Salim-Jones Method for Pile Group with Submerged Pile Cap'Johnson's Method For Wide Pier in Shallow Water(Plot Scour Cross-Section and Actual Cross-Section)Import Cross Section Data From HECRAS Project*Draw Cross-Section and Scour Profile+Guidance for Plot Scour Cross-Section,References-ReferencespMSHA Scour7 Programqscour7.HLP/&;)z4|CntJumpn|CntText|FILES )|Flags;+|KWBTREE|KWMAP|Petef.|WinPos/&;)Lz%%IDH_4005IDH_4008IDH_4010IDH_3200IDH_4020IDH_4030 IDH_4040 IDH_4050 IDH_4060 IDH_4062 IDH_4070IDH_4075IDH_4065IDH_4135IDH_4080IDH_4090IDH_4100IDH_4110IDH_4120IDH_4135IDH_4125IDH_4095IDH_4130IDH_4140IDH_4150IDH_4160 IDH_4170!IDH_4180"IDH_4190#IDH_4200%IDH_3210&IDH_3220'IDH_3230)IDH_4230*IDH_4235+IDH_4210-IDH_4220/&;)za/&;)F!/&;)L4z MSHA Scour7 Program=C:\Documents and Settings\benedict.SC\My Documents\FHWA\Phase 2\MODIFIED REPORT\Phase 2 Modifications\FILES FOR CD 6-6-06\MARYLAND\ABSCOUR\PROGRAM\scour7.HLP'DC:\Documents and Settings\benedict.SC\My Documents\FHWA\Phase 2\MODIFIED REPORT\Phase 2 Modifications\FILES FOR CD 6-6-06\MARYLAND\ABSCOUR\PROGRAM\Scour7.CNT+". Lhx""""""""""""""""""""""" CC