This subassembly inserts a retaining wall structure with one tapered side and a key at the bottom based on Caltrans Standard Plan 2010, B3-1 and B3-2 (Type 1).
The Standard Plan maybe found here: http://www.dot.ca.gov/hq/esc/oe/project_plans/highway_plans/stdplans_US-customary-units_10/viewable_pdf/b03-01.pdf
Back Facing - Without Barrier
Back Facing - With Barrier
Face Facing - Without Barrier
Face Facing - With Barrier
The attachment point is at the top of the retaining wall when Back Facing and on the face of the retaining wall when face facing.
Note: All dimensions are in feet unless otherwise noted.
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Parameter
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Description
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Type
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Default
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Side
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Specifies to insert the subassembly either on the right or the
left side of the attachment point.
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Left / Right
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Right
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Wall Link Codes
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Link codes to use for the wall portion of the subassembly.
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String
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Wall
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Wall Point Codes
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Point codes to use for the wall portion of the subassembly.
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String
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Wall
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Footing Point Codes
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Point codes to use for the footing portion of the subassembly.
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String
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Footing
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Footing Link Codes
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Link codes to use for the footing portion of the subassembly.
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String
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Footing
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Use B11-55
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Specifies whether or not to use a barrier at the top of the
subassembly based on Caltrans Standard Plan B11-55.
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Yes/No
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Yes
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Footing Cover
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The distance above the footing for the attachment point for
another subassembly.
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Double
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1.5 ft
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Attachment Point
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Determines whether the footing is forward facing or backwards
facing.
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Back/Face
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Back
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This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing. For more information, see in the AutoCAD Civil 3D User’s Guide Help.
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Parameter
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Description
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Status
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Wall Height
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Is used to find the footing dimensions to use in the subassembly
based on the table in the Standard Plan. The profile elevation needs to
correspond to the required wall height. For instance to get the 4 foot wall
footing dimensions and batter, the profile elevation would be 4’. The
following object types can be used as targets for specifying this elevation:
profiles, 3D polylines, feature lines, or survey figures.
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Optional
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Top of Footing
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Is used to specify the top of footing elevation for the
subassembly. The following object types can be used as targets for specifying
this elevation: profiles, 3D polylines, feature lines, or survey figures.
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Optional
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Top of Wall
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Is used to specify the top of wall when the subassembly is set
to the Face Attachment Point.
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Optional
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Elev at Face
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Is used to provide a way to control the point P20’s elevation in
relation to the Top of Footing. Is used only for when the subassembly is set
to the Back Attachment Point.
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Optional
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None.
This subassembly can be inserted on either the left or the right sides. The attachment point is assumed to be where the finish grade intersects the inside face. The wall height is determined from the attachment point to the Top of Footing elevation in the profile.
In layout mode, the subassembly draws the retaining wall shape as specified by a 4’ high retaining wall.
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