InSite SiteWork - Quick Stack™ Subgrades

Add Paving and Building Footprints, etc.

Adjust for Subgrade.  Use the Quick-Stack™ Subgrades feature to trace site features like parking lots, building pads, topsoil replacement areas, etc.  Since the proposed grades are entered at finish, we use a Depth type subgrade for areas like parking lots to remove an even layer from the proposed surface. 

A Replacement Topsoil subgrade is similar to a depth type, except the volume of replacement topsoil is automatically calculated.  Use an Elevation type subgrade for building pads.

Quick Stack™ Subgrades.  Estimators who have switched from other programs are often amazed how much faster a take-off can be done with InSite SiteWork.  One reason is because of our Quick Stack Subgrade feature.  Follow along and watch how easy it is to enter this complex site (These are lower resolution images, the final image can be made larger).

Add the Topsoil Respread Requirement.  First, copy the site boundary.  On this site, it is the topsoil replacement footprint.  It could also be traced.  Notice that we are not worrying about the footprint of the buildings or parking lot.  These are handled automatically later.

Copy the Bounday for Topsoil Respread

Topsoil respreadFor Subgrade Type, we entered 3.Repl Top (Replacement Topsoil) with a value of .33 (4 inches).  Cut and Fill will be calculated to a depth 4 inches below the proposed grade, and the Topsoil replacement volume will automatically be calculated.

Enter the Paving Footprint by tracing its perimeter. 

Copy the Bounday for Topsoil Respread

Enter the Paving DetailsThis is entered as Subgrade Type of Depth.  The Subgrade Value is entered as 1.5 feet (the total thickness of the paving materials).  We entered the Descriptions and Thickness for each Subgrade Material (Asphalt and Sub-Base).

The Topsoil respread area (Subgrade 1) is reduced by the paving footprint.

 

Enter the Buildings and other features. Finally we'll enter each building pad, topsoil island, sidewalk, etc.  Trace the perimeter and choose the Subgrade type from the Subgrade menu.

 Add the Buildings

Enter the Building DetailsEnter the elevation of the structure.

InSite will ignore the proposed surface in this footprint, and calculate a flat pad to this elevation.  You can optionally enter any subgrade materials. 

Continue to add the Islands, sidewalks and other site features to complete the take-off. 

A few More Things about Subgrades. 

  1. The Topsoil Replacement traced first now includes only the green areas.  The buildings and paving are automatically subtracted from this footprint.  No Double Tracing Required!
  2. Revisions are easy! Since the proposed grades are independent of the subgrade areas, if the grades change, just change the grades.  If the subgrade footprints change, just draw the new subgrade.
  3. There is a No-Work Subgrade that can be used for Existing Structures, a grove of trees, etc. Just trace the perimeter, choose No-Work as the Subgrade Type, and the traced area is excluded from all earthwork calculations.
  4. The Quick-Stack feature of InSite SiteWork works the same in CAD import. We have now entered most of the site information. Now let's check the results!

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