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Whether modeling Culverts, Channels, Inlets or Weirs you will need at some  point to know the flow rate.  Hydraflow Express has options on the Hydrology section to help develop run off  Hydragraphs and it uses a variety of methods.  It supports the Rational method, Modified Rational method and the SCS method.  You might hear the term volume flow rate and think it sounds boring, but volume flow rate keeps you alive. I'll tell you how in a second, but first we should define volume flow rate. Let's look at these a little further,  to start off with we'll use the Rational  method and let's look at an example.  For the Area I'm going to use .4 acres, for the Runoff Coefficient I'll use .8.  For the Tc Method I'll select User, but we do have a number of other methods here as well.  For the time I'll set that to two minutes,  the Storm Distribution and Duration are the -0- options, which means I don't need  input anything here so I'll skip those,  and I'll accept the value of one, and the ...

Open Civil 3D - From  Analyze Tab, select the Design Panel Pulldown........   In Hydraflow Express the first task we'll take a look at is working with Culverts  and this is an easy-to-use yet sophisticated Culvert Modeler.     It also assumes that you have a good understanding of fundamental hydraulic  principles and the variety of flow conditions for Culverts.  Let's work through an example. Starting with data to input..... Now here we have the Input column and this  is where we'll input all of our values; and we can see if I pick the different  fields, at the bottom of the dialog box you get a description of the values that  Hydraflow is looking for you to enter. So I'll start at the top and for the  Invert Elevation I'll start by entering 100.  For the Length I'll enter 30, for the Slope .5 (for half a percent slope),  then you'll notice that the Upstream Invert  Elevation is automatically calculated for you.  I'll move on and enter the Rise and I'll start with 18 inches, and this is for an  18 inch diameter pipe. ...

Driving in 3 Easy steps....... Step 1 - Choose your vehicle Click AutoDrive Arc and the vehicle libraries are automatically opened. Choose your vehicle from one of the vehicle libraries In addition to worldwide design vehicles, you’ll find “European Vehicles”, “North American Vehicles” and “Specialist Vehicles”;  Click Proceed.   Step 2 - Position your vehicle You will be asked whether you want to set the current vehicle as your default vehicle for all future paths. Select either Yes or No. The Drawing Settings window will appear; here you can change your path settings and units to match the drawing. If these are ok, click Yes to continue. Position the front of the vehicle where you want it and left click to accept, then you can set the orientation of the vehicle to point in the direction that you need. The Position Vehicle Window will appear with more options if needed, simply click Proceed to start driving.   Step 3 - Drive your vehicle As you move the mouse around, the vehicle path is calculated based upon the vehicles dimensions and geometry. If a maneuver can’t be performed, AVT wont let you complete that ...

I'm rehashing this one because a user asked me if it was possible to create a profile from a feature line.   I must give credit where credit is due. My good friend, Phillip Lynch, showed me this cool feature. Scenario: so you’ve been given a set of points in line and have been asked to generate a profile from those points only. You don’t have an existing surface, nor do you need one. All you need is the profile of just the points. Problem: you cannot create a profile without first sampling an existing ground surface. Problem solved. . . First, generate a feature line from those points. This can be done with a 3DPOLY that you connect from node to node and then converting the 3DPOLY to a feature line or by manually drawing a feature line from node to node. The node object snap must be used to absorb the point elevation: Then select the feature line to active the context sensitive ribbon. In the ribbon you’ll find the quick profile tool: In the “Create Quick Profiles” dialog box set your styles as ...

Autodesk Labs have a new product to assist with coordinating Revit with Civil 3D.  This new add-in tool will allow the coordinates inside of Civil 3D be saved out as an external file, that can be imported into Revit to acquire the Shared Coordinates.  This process appears to work without having to import the actual Civil file.  A quicker, simpler way to make sure you Revit model has the correct coordinates.The add-in app is written for release 2012, but I copied it to my 2013 version and it appears to work correctly.Check it out!

First of all, I had an client who wanted to get some Survey data, DTM models and Cross-Section data from CaiCE into Civil 3D......Nooooo Problem!  Solution - CAiCE Translator Extension for AutoCAD Civil 3D 2012.  The CAiCE Translator Extension for AutoCAD Civil 3D 2012 is an application that converts data from CAiCE projects into Civil 3D. Project data including survey data, points and chains, horizontal and vertical alignments, surfaces and cross sections can be selected and imported into the current Civil 3D drawing file. The extension does not require CAiCE to be installed!Under the Toolbox...... Survey Points and Data DTM Options.......WOW! Presto! Look in your Toolspace................http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=17461535&linkID=9240698Kenneth L. Driscol

Daylight Rounding; try it, you might like it! Old school engineers and drafters still live in a world when a set of plans is a work of art and should reflect the real world. However, in the modern computing world, when finite math reaches a number, the computing stops. A great example of this is how the contours look when you are creating a corridor surface.Contours are a major player in the older practice of hand drafting. Contours are flowing objects with few hard edges and angles in the real world. Yet when we calculate a TIN intersection, the contour will just stop and make an abrupt turn where that intersection is computed without any thought to what the end result will look like. I hear this question a lot from users: “How do I make my contours “tie in” with corridor surfaces?” By “tie-in,” they mean make the swooping arcs and look like they eventually will in real life. If you follow the link below, you’ll see an example of what old school engineers don’t want to see, ...

AutoCAD Civil 3D enables you to explore multiple options, ultimately helping you produce an optimized design. The integration of imagery and geospatial data assists in identifying an optimal solution early in the overall process, helping to save time and money.• Import geospatial data, such as soil types, land use information, and environmental constraints to more quickly analyze and better understand the probable impacts of different alternatives.• Use imagery and terrain models from Google Earth™ mapping services and other sources to help visualize the ecosystem of a project.• Most project data—such as survey information, surfaces, profiles, horizontal alignments, andcorridor models, as well as related annotations and labels—have predictable relationships with other elements in your design. This results in the dynamic updating of model elements when related elements are changed.• AutoCAD Civil 3D includes terrain shaping tools that support large-surface models whilemaintaining dynamic relationships to source data, including contours, break lines, corridor models, and grading objects.• Use surfaces as references for creating profiles, sections, and corridors. Any changes to the source data result in automatic updates to surfaces and references, which helps you save time and reduce errors. This means that ...

Standards are the universal language of civil engineering. Almost all projects need to respect local constraints for steep slopes, pipe layout, minimum parcel size and road frontage, sight distances, road curvature, and more. Additionally, construction documents need to use the appropriate line types, line weights, and symbology to be readable for construction and accepted by regulating agencies. Designers can make changes with more confidence because AutoCAD Civil 3D 2012 software helps them to meet the design criteria mandatedby the customer and various third parties. AutoCAD Civil 3D 2012 software has built-in tools that help reference and report violations of industry requirements, like AASHTO and TAC standards.Corridor models can be built using assemblies with parametric constraints based on agency requirements.Customize tables to help you adhere to unique standards that are enforced by local agencies. Maximize parcel yield and green space using built-in tools to help meet local standards for size, frontage, and setback. Use interactive editing tools to preview changes and refine layouts without your established constraints before deciding on a final design.Autodesk Storm and Sanitary Analysis, included with Civil 3D, is based on industry-leading hydrologic models ...

Teams regularly spend time recreating various aspects of the project design in separate analysis software. Different aspects of civil designs must beanalyzed at various stages of a civil project. The designer needs a good understanding of slopes, earthwork volumes, stormwater management, and more.  Analysis results must be considered as a whole in order to make design decisions  that satisfy the project requirements. Civil 3D helps eliminate redundancy in  your workflow by analyzing the model you’ve already built. Designers can getfeedback in real time, while there is still an opportunity to refine the designand make changes.• Analyze pre- and post development hydrologic conditionsusing integrated hydraulic and hydrology tools.• Analyze your AutoCAD Civil 3D pipe network models, culverts, and channels using Autodesk® Storm and Sanitary Analysis 2012 software to help make design decisions. Automate thegeneration of robust reports for submittal to review agencies.• The mass haul and earthwork features enable contractors and engineers to more effectivelyplan the movements, amounts, and placements of material during construction. Asdesigns are changed, Civil 3D can help to quickly analyze earthwork balancepoints, determine the amount and direction of material to be ...

 This is the first post of a three post series in which I will be covering pipe networks created from GIS data. Using this feature new to 2012 you may have noticed that GIS data in the form of SHP files may not always be what you expect. Especially when you import this data and create pipe networks from it, remember - garbage in, garbage out.If the original GIS data has the correct object data associated with it, (inverts, pipe size, materials, etc.) the better end result you are going to get. Additionally, you will need to take into consideration the amount of vertices that these pipe lines have in them. If the pipes have many vertices between actual pipe start and end, Civil 3D will place a null structure at each one of these vertices. This may be acceptable if the pipe really does end there, but edits may need to be made prior to import as well as after the fact.  If the data has excessive amounts of vertices, you can easily edit these with a few different options.First, ...

AutoCAD Civil 3D 2012 Update 1 In a continuing effort to provide high quality products, Autodesk has released AutoCAD Civil 3D 2012 Service Pack 1, which fixes or addresses a variety of issues discovered by customers and by Autodesk's internal testing team. This Service Pack includes all previous hotfixes for AutoCAD Civil 3D 2012. It also includes the fixes included in AutoCAD 2012 Service Pack 1 and AutoCAD Map 3D 2012 Service Pack 1. Note: This update applies to all language versions and to versions of AutoCAD Civil 3D 2012 with previous hotfixes applied. Before applying this update, make sure that any customizations made to the user profile (such as, customizations made to the support file search paths, print file customizations, printer support file paths, redirections, custom template settings, and so on) are exported to a secure location, then imported and reapplied after the update has been successfully installed. You cannot run an automatic uninstall to remove this update. To restore your version of AutoCAD Civil 3D 2012 to its pre-update state, uninstall AutoCAD Civil 3D 2012 and ...

Move forward with no worries, DOT......The 12d Data Extension for Civil 3D 2012 enables data from 12d® Model™ software by 12d Solutions Pty Ltd to be imported and used within AutoCAD Civil 3D 2012 software.The extension provides support for 12d Model ASCII files from all knownversions of 12d Model software up to and including Version 9.0.Supported 12d Model data types include:Alignments andprofiles Super strings Drainage strings TIN’s Text strings

Playing in the Dirt.........The Volumes Dashboard Extension for AutoCAD Civil 3D 2012 software provides a streamlined interface for design and construction professionals to calculate, report and visualize surface volumes within AutoCAD Civil 3D 2012 software.Refining earthworks through iterative design is a common operation that isperformed throughout the design and construction process on infrastructureprojects. This extension can streamline and help optimize the current processin AutoCAD Civil 3D 2012; it will also provide an easy to follow workflow forcommon tasks, helping new Civil 3D users become productive, more quickly.