Hydrology

Full 3D road and lot design feeds directly into flow calculations and drainage design. Plus, Carlson Software is excited to release the first Carlson Hydrology product that is tightly intergrated with HydroCAD.

This collaboration brings together the extraordinary ease of use that Carlson is known for, its 20+ years of experience mastering the civil/survey CAD environment, with the 20+ years of experience of HydroCAD in the unique, rapidly changing and highly regulated stormwatere modeling profession.

The Carlson 2010 line of software comes with 64-bit capabilities, is Windows 7 compatible, and works on AutoCAD 2010.

From Carlson Software, you get complex calculations of surface flows integrated with the DTMs:

• Tap extensive libraries on rainfall, inlets, manholes, outlets
• Calculate inlet intercepted and bypass flows, gutter spread and depth, pipe flow depth and velocity, and hydraulic and energy grade lines
• Get warnings for collisions, excessive pipe lengths, insufficient cover, lack of slope, excessive flow rates, and more
• Track runoff and analyze watershed — choose entire area or the watershed above a point such as a catch basin
• Design ponds, culverts, channels and outlets
• Draft sewer pipe dynamically in plans, profiles and 3D

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 site

Next, 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. All of the tedious data extraction is done instantly, saving you hours of work.

Key Features

General

• Built on AutoCAD: Runs in AutoCAD versions 2010 to 2000 as well as AutoCAD Map, Land Desktop and Civil3D and on IntelliCAD 6.6.
• Project Setup: Flexible data storage methods
• Drawing Cleanup: Fix common drafting errors
• Drafting Enchancements: Handy tools for working in AutoCAD such as Join Nearest, Shrinkwrap Entities, Polyline Utilities, Drawing Inspector, Layer Inspector and Twist Screen
• Data Compatibility: Supports industry standard LandXML and scores of specific data conversions

Surfaces

• Build Surfaces: By triangulation or rectangular grids
• Contouring: One step triangulate and contour from 3D entities as well as contouring from surface files
• Slope Analysis: Label and report surface slopes at selected points and slope zone analysis

Watersheds

• Watershed Analysis: Watershed delineation, ponding analysis, and real-time inspector for flows and drainage areas
• Runoff Tracking: Draws 3D flow lines that follow the surface model
• Peak Flow: Calculate peak flow by various methods from runoff parameters of storm event, drainage area, time of concentration and runoff coefficients
• Hydrographs: Route hydrographs from multiple watersheds through ponds and channels using TR-20

Hydraulic Structures

• Pond Sizing and Design: Detention pond sizing, bench and valley pond design, stage-storage calculation and graphs
• Spillway, Weir, Orifice, Culvert, Channel Design: Routines to design the dimensions and flows for structures plus reports and drafting for them
• Multiple Outlet Design: Combines orifices, weirs, drop pipes, culverts and user-defined outlets to design the overall stage-discharge
• Stage-Storage and Stage-Discharge: Routines to input, edit, report and draw

Sewer Networks

• Define Inlets, Structures, Pipes, Storm Events: Setup libraries with parameters for these network components
• Layout Structures and Pipes: Place structures and set pipe connections
• DTM-Based Runoff: Calculates drainage area, time of concentration and weighted runoff coefficent from inlet location on surface model. DTM also used to figure minimum cover for pipes
• Analyze Flow: Calculate inlet intercepted and bypass flows, gutter spread and depth, pipe flow depth and velocity, and hydraulic and energy grade lines
• Size Pipes and Set Inverts: Apply flow analysis to have program set pipe size and/or invert elevations
• Collison Conflicts Check: Reports any collisions between networks within specified tolerance
• Draw Sewer Network: Draw structures and pipes in plan view, in 3D using 3D Faces and in profiles