Chapter 4: Hydrology Section 1: Hydrology’s Role in Hydraulic DesignIn the context of hydraulic design, hydrologicanalysis provides estimates ofas a result of precipitation.

• Water Quality Diagrams

Carlson Hydrology is a comprehensive, yet easy-to-master civil engineering software solution providing automation you can use to meet your hydrology needs. Full 3D road and lot design feed directly into flow calculations and drainage design.Includes access to lookup rainfall amounts in NOAA Atlas 14, watershed commands operated by grid files for watershed perimeters and runoff tracking, plus the option to draw out sewer lines just as a polyline before converting them in the sewer model.The Utility Network has also been expanded to allow more shapes and utility types – gas, water, communication, storm. The Sewer Network commands allow users to label the drainage areas for each inlet and there are added controls for pipe label styles, the software supports negative step-up, and its reports now include multiple invert-ins.Carlson Hydrology works on top of AutoCAD® 2018 and comes with IntelliCAD®8.3 built-in, and AutoCAD versions 2010 and up are also supported.Enhanced collaboration options are highlights of the Carlson Civil and Carlson Hydrology. The Settings Server enables CAD managers to easily distribute uniform command settings and files to Carlson users throughout their company.

Water Quality Diagrams

Drop Pipe Spillway Design. Added support for rectangular risersAdvanced Weir Design. Added dynamic graphic preview of weir dimensionsInput-Edit Stage-Storage/Discharge. Added option for Report Formatter for custom reports and Excel outputSewer Network Libraries.

Added ability for user-defined custom fields to add to pipe, structure and inlet libraries. These custom fields are used in Report Sewer Network.Sewer Network Symbols. Added optional 3D symbol for structures for drawing model in 3DDraw Sewer Network Plan View. Added option to label only structures with assigned ID’s intended for clearing up utility network plansDraw Sewer Network Profile. Added method to link edits to profile back to sewer network model.

Added option to label inlet typeCollision Conflicts Check. Added method to check 3D polylines with assigned pipe data. Added amount of overlap for any conflicts to the report.

Added checking of pipes within same network. The Carlson line of software comes with 64-bit capabilities, is Windows 7 compatible, and works on AutoCAD® and IntelliCAD. Here’s how it all works with HydroCAD:. Start with a drawing, preferably georeferenced.

Define the Hydrologic Soil Group areas and identify them with plain CAD text, A, B, C, or D. Define Ground Covers areas as closed polylines on user-defined layers. Define and label watersheds and longest flow paths for Tc calculations.

Specify the surface TIN model for the siteNext, start Carlson’s new HydroNET® Explorer and pick Update All for automatic extraction of precise subcatchment sub-area data. Carlson does all the work to combine and analyze all of the project specific data in your drawing and Export to HydroCAD exactly what it needs to perform the stormwater modeling.