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CR 2499: Stepping into Variable 
Height Retaining Walls
Eric Cylwik
Senior Virtual Construction Engineer @ Sundt Construction, Inc.
 Introduction
 Sundt’s Background
 Why Retaining and MSE Walls in Civil 3D?
 Excel for Profile Creation
 MSE Wall using Stock Subassemblies
 Custom Subassembly Creation
 Model Uses
 Recap and Looking Forward
Stepping into the non-variable Agenda
At the end of this class, you will be able to:
 Use Excel Macros to Streamline Data-heavy profile creation
 Create a MSE Wall assembly using standard Civil 3D Subassemblies
 Use a Custom Subassembly Created in Subassembly Composer to 
Create a 3D Solid Retaining Wall
 Visualize, Coordinate, Quantify, and Export survey surfaces and line work 
for a MSE wall
Key learning objectives
Sundt’s
Background
Sky Harbor Video
Sundt’s VDC Progression
Danger of Copy and Paste
Sundt’s VDC Progression
 2006 – SIMCON Department & Clash Detection
 2008 Light Rail -- Northwest Extension (Utility Modeling)
NW Ext. Video
Sundt’s VDC Progression
 SIMCON Department & Clash Detection
 Light rail -- Northwest Extension (Utility Modeling)
 CM/GC, CM@R, and Design Build Presentations
Sundt’s VDC Progression
 SIMCON Department & Clash Detection
 Light rail -- Northwest Extension (Utility Modeling)
 CM/GC, CM@R, and Design Build Presentations
Sundt’s VDC Progression
 SIMCON Department & Clash Detection
 Light rail -- Northwest Extension (Utility Modeling)
 CM/GC, CM@R, and Design Build Presentations
Sundt’s VDC Progression
Sundt’s VDC Progression
Sundt’s VDC Progression
Why
Retaining Walls in Civil 3D?
 Accurate Geometry
 Shovel-Ready
 On-the-fly Changes
 Accurate QTO
 Context Aware
 Model to Survey & AMG
MSE/Retaining Walls in Civil 3D
MSE/Retaining Walls in Civil 3D
MSE/Retaining Walls in Civil 3D
Excel
for Profile Creation
 Ability to use Formulas
 Can check “source” data
 Very easy to update
 Less error-prone entry
 Ability to use Macros
Excel for Profile Creation
Excel A
Excel B
Excel C
Excel D
Excel E
Excel F
 A – 4
 B – 4
 C – 3
 D – 5
 E – 4
 F – (Last Two?)
Profile Import Video
MSE
Wall using Stock Subassemblies
 Create Assembly
 Add Coping Cap (MultiLink)
 Add Vertical Link
 Add Link Width and Slope (To Pass Parameter)
 Add MSE Panels (Shape Trapezoidal)
 Add Footing (MultiLink)
 Create Corridor, Add Targets
 Pass MSE Panel Height from
LW&S TO Shape Trapezoidal
MSE Using Stock Subassemblies
MSE A
MSE B
MSE C
MSE D
MSE E
MSE F
MSE G
MSE H
MSE I
MSE J
MSE K
MSE L
MSE M
MSE N
MSE O
MSE P
MSE Q
Custom
Subassembly Creation
 Compare Targets and Parameters
 One variable controls many Outcomes
 Math Functions
 Complex Geometry
Custom Subassembly Creation
SAC A
SAC B
SAC Video C
SAC C
SAC Video D
SAC D
SAC Video E
SAC E
SAC Video F
SAC F
SAC Video G
SAC G
SAC Video H
SAC H
SAC Video I
SAC I
SAC Video J
SAC J
SAC K
SAC Video K
Uses
for MSE & RW Models
Use Video A
Use Video B
Use Video C
Use Video D
Use Video E
Review
& Looking Forward
Review & Looking Forward
 Excel Profile Entry
 Flexible, formula-driven, already in use!
 MSE Wall from Stock Subassemblies
 MultiLink for constant shapes
 ShapeTrapezoidal for variable shapes
 1:1 slope in LinkWidthAndSlope converts absolute to relative
Review & Looking Forward
 Custom Retaining Wall
 Truly parametric shapes
 Custom codes, link, shapes
 RW/MSE Wall VDC Uses:
 3D Visualization
 Quantity Take Off
 Mobile Device Review
 Automated Machine 
Guidance
 Risk Analysis
 Constructability Reviews
 Project Sequencing
 Sight Distance Analysis
You can now:
 Can Use an Excel macro to create profile “steps” (provided on website)
 Know which stock subassemblies to use for a MSE Wall Assembly
 Know how to create a custom subassembly in SAC to create a 3D solid 
Retaining Wall model
 Visualize, Coordinate, Quantify, and Export survey surfaces and line work 
for a MSE wall
Key learning objectives
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