DDMSW 5.6.0 Tutorial Documents & Related Project Files

For the most recent version release of the software (DDMSW 5.6.0, Release Date: September 18, 2018), twenty-three tutorial materials are available, which is five more tutorial documents than the previous version (DDMSW 5.3.0, Release Date: July 6, 2016) of the software. Brief overview and descriptions of these tutorial materials are provided below. Individual access of these tutorials and their related project files can be made on individual tutorial pages.

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Developing a New HEC-1 Model

This tutorial includes important guides in the use of DDMSW such as accessing helpful documents from the Help menu, setting and updating project defaults, setting the paths for saving model input and output files, and how model data is created and established. Model development involves the establishment of the following datasets, which are entered manually: (a) rainfall; (b) soils; (c) land use; (d) sub-basins; (e) routing reaches; (f) diversions; (g) storage facilities, and (h) flow data. The procedure also includes the development of the model network that defines the relationship of the different hydrologic elements (sub-basins, routing reaches, diversions, storage facilities, and direct flow data) in the model. DDMSW builds the HEC-1 models for the six standard return periods in the program (2-year, 5-year, 10-year, 25-year, 50-year, and 100-year) and generates the flow hydrographs and peak flows associated with those return periods.
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Developing a New HEC-1 Model Using GIS Shapefiles

This tutorial illustrates the development of a HEC-1 model using shapefile datasets from GIS. The datasets include, rainfall, sub-basins, soils, land use, flow paths (L, Lca, or Tc), and routes. The procedure includes a guide in customizing the data fields for each dataset such as names, data types, and data lengths. DDMSW evaluates and compiles the model parameters from these shapefile datasets and create a HEC-1 model based on the model network created by the user. DDMSW creates six (6) models for six standard return intervals hardcoded in the program, namely, 2-year, 5-year 10-year, 25-year, 50-year and 100-year storm events.
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Developing a New Project Using Rational Method

This tutorial was developed to guide users in developing a hydrology model using the Rational Method. By following the procedure outlined in this document, one should become familiar with the approach with the ultimate objective of implementing the procedure to developing a much larger hydrology model using the DDMSW program.
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Updating NSTPS Values for Channel Routing

This tutorial is developed to guide users in evaluating the NSTPS parameter (HEC-1 RS card’s first field) for channel flow routing in HEC-1 using DDMSW. The input data file is an existing HEC-1 input file where normal-depth storage routing methodology is used. The implemented tool within the DDMSW program creates an updated HEC-1 input file that includes a refined set of NSTPS values updated from two successive model runs.
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Importing HEC-1 Stand-Alone Input File

This tutorial outlines the approach for importing an existing HEC-1 model input file with the goal to employ the reporting and graphing feature capabilities of the DDMSW program. The HEC-1 model parameters in the resulting DDMSW project cannot be updated because the supporting land use, soils, sub-basin and network datasets are not included during the import. The resulting model can only be run for one storm event - the one that was used in the original HEC-1 input file. For DDMSW 5.6.0, Tutorial #23 (“Import HEC-1 Model and Update Losses”) has been developed to provide a procedural guide on updating model loss parameters when supporting project datasets in the form of shapefiles are available.
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Customizing HEC-RAS Table for DDMSW

This tutorial outlines the procedure in customizing a HEC-RAS output table identifying which hydraulic parameters should be included in the table and defining their respective column order. HEC-RAS can save the custom format defined by the user so that it serves as a template that can be accessed and used for future projects. The imported data can be used for river mechanics analysis that includes scour analysis, sediment yield, riprap sizing, and launch-able riprap.
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Developing a HEC-1 Model With Custom Storm Event

This tutorial outlines the method for creating a project with Custom Storm Events. The procedure for creating a Custom Storm Event project is the same as developing a HEC-1 project using the S-Graph. The only difference is that the rainfall uses a custom distribution and the rainfall event is not necessarily associated with any return event. The procedure allows the user to enter the Rainfall Distribution to use in the analysis as well as the total storm depth. The procedure applies only to the S-Graph and not to the Clark UH method.
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Developing HEC-1 Routing Data Using GIS

This tutorial outlines the method of creating the routes dataset (i.e., Routing.shp) within GIS to assemble the data for the three (3) routing methods used by HEC-1, namely, Normal Depth, Muskingum-Cunge, and Kinematic Wave. This approach is to replace the manual data entries.
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Project to Evaluate Impact of Land Use Changes

This tutorial provides a procedure with a working example to evaluate the impact of changes made on land use data on the hydrology. Two models are developed in this tutorial. The first model is developed using GIS datasets, while the second model is developed manually.
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Total Scour Analysis for Bank Protection

This tutorial provides a step-by-step procedure in evaluating the total scour depth for toe-down protection of bank structures. The procedure involves the consideration of six (6) scour components, namely, long-term scour, general scour, bend scour, bed-form, low-flow, and local scour. The procedure also demonstrates the use of appropriate safety factors.
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Total Scour Analysis for Bridge Piers

This tutorial provides a step-by-step procedure in determining the total scour depth for bridge piers. The procedure involves the consideration of six (6) scour components, namely, long-term scour, general scour, bend scour, bed-form, low-flow, and local scour. The procedure also demonstrates the use of appropriate safety factors.
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Sediment Yield Analysis

This tutorial outlines the procedure in evaluating the sediment yield for estimating sediment volume that impacts the design capacity of storage basins and for determining the frequency of basin maintenance for restoring storage capacity to its design level.
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Riprap Sizing Analysis

This tutorial provides different procedures in evaluating riprap sizes for channel bank and bed protection applications. Eight design engineering applications for riprap sizing are included in the program.
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Lateral Erosion Analysis

This tutorial provides a step-by-step procedure in defining and evaluating the extent of the lateral erosion corridor (or erosion-setback) from existing defined floodways. The delineation of the lateral erosion corridor is for protecting properties and the public from potential flood encroachments caused by lateral bank erosion.
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Launch-Able Riprap Design Analysis

This tutorial provides a step-by-step procedure for evaluating a launch-able riprap design for toe-protection of armored river banks or banks of waterways. The program has the capability to import scour values and riprap size analysis results to be used for the design analysis.
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HGL Evaluation of Storm Drainage System

This tutorial provides a step-by-step procedure for developing and solving a storm drainage system using STORMPRO within DDMSW. The problem that is modeled in this tutorial, Design Example 4.6, is taken from the District's Hydraulics Manual (2013).
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Street Drainage System Hydraulic Analysis

This tutorial was developed to showcase the capability of the Street Drainage Hydraulics module within DDMSW. Important elements of the tutorial include: (a) hydrologic model development for Rational Method from GIS shapefiles; (b) model network development for the Rational Method; (c) hydraulic analysis of catch basin inlets using the street drainage network model; and (d) hydraulic grade line (HGL) evaluation of the conveyance facilities using STORMPRO backwater model.
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STORMPRO Backwater Modeling

This tutorial provides a working example in the use of the STORMPRO Backwater Model, which evaluates the hydraulic grade line (HGL) of a simple drainage system using the evaluated peak flows from the Rational Method. This tutorial takes off where Tutorial # 3 ("Developing a New Project Using Rational Method") was concluded.
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HEC-18 Abutment Scour

This tutorial (developed for DDMSW 5.6.0) provides a step-by-step procedure on how abutment scour depth is calculated based on the 2012 FHWA publication of HEC-18. The method employs a criterion in distinguishing a live-bed condition from a clear-water condition, and thus employing the appropriate approach to evaluate the scour depth.
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HEC-18 Guide Bank Scour

This tutorial (developed for DDMSW 5.6.0) provides a step-by-step procedure on how guide bank scour depth is calculated based on the 2012 FHWA publication of HEC-18. The method offers two options in evaluating the depth of scour: live-bed condition or clear water condition. By providing the input data required, the program automatically selects which appropriate method is used.
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HEC-18 Pressure Flow Scour

This tutorial (developed for DDMSW 5.6.0) provides a step-by-step procedure on how scour depth from pressure flow is calculated based on the 2012 FHWA publication of HEC-18. The evaluation of pressure flow scour for bridge under inundation condition is based on two stream scenarios: live-bed condition or clear-water condition.
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HEC-18 Pier Influence Zone Scour Depth Calculation

This tutorial (developed for DDMSW 5.6.0) provides a step-by-step procedure on how scour depth is calculated in the pier-influence zone based on the 2012 FHWA publication of HEC-18. Pier-influence zone is defined as the top width of a pier’s local scour hole involving cohensionless bed materials.
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Import HEC-1 Model and Updated Losses

This tutorial (developed for DDMSW 5.6.0) provides a step-by-step procedure in updating infiltration loss parameters for an imported HEC-1 model file by using shapefiles. The tutorial comes with a working example comprising of a HEC-1 model file and relevant shapefiles.
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