Retaining Wall Selection for Detailed Decision Makers
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Please log into the webinar 15 – 30 minutes before start time.
Tuesday, June 7, 2022
10:00 am – 12:30 pm CDT
Bill Simpson, P.E.
Common types of retaining walls commonly used in today’s construction
Best applications of a cast-in-place concrete retaining wall
Alternatives to cast-in-place retaining wall construction
Advantages to using gravity retaining walls
Different types of gravity retaining walls
Basic concepts of MSE systems
When to specify an MSE wall or MSE slope
Site layout concerns to consider when locating a retaining wall
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2.5 HSW CE Hours
2.5 AIA LU|HSW
2.5 HSW CE Hours
2.5 LA CES HSW PDHs
International Code Council:
.25 CEUs (Sitework)
2.5 ASFPM CECs
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See each course listing for the type and amount of each continuing education credit available. Individual courses for engineers and architects are not subject to pre-approval. HalfMoon Education does not apply for landscape courses in NY or land surveyor courses in NJ or TN, unless expressly stated.
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Completion certificates will be awarded to participants who complete this event, respond to prompts, and earn a passing score (80%) on the quiz that follows the presentation (multiple attempts allowed).
Bill Simpson P.E.
Geotechnical Structure Design Specialist at Gradelta Engineering.
Mr. Simpson founded Gradelta Engineering in 2020 with the intent to help clients better understand the combination of geotechnical and structural engineering that he has worked with for the past 20 years. He earned his B.S.C.E. and M.S.C.E. degrees from Georgia Institute of Technology. He currently provides engineering services to contractors and fellow engineers for earth structure pricing, along with the plans and calculations needed for construction. He frequently consults with clients regarding the optimal structure type and location on the construction site to minimize risk and maximize useable space. He also works in the education sector providing not just seminars such as this one, but also acting as a subject matter expert creating study guide and test prep content for the NCEES Professional Civil Engineer exam. Mr. Simpson has also worked with lawyers and insurance companies during forensic investigation and lawsuits surrounding retaining walls and slope failures. His hope is that through the instructional services that he currently provides, slopes will remain stable and retaining wall failure will be eliminated.
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HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES (email@example.com or (800) AIA 3837, Option 3).
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AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
Course Title: Retaining Wall Selection for Detailed Decision Makers
Delivery Method: Live Online
Course Description: This course closely examines different types of retaining walls, their advantages and disadvantages, and when and how to utilize them and their alternatives.
Learning Objective 1:
Learners will be able to describe and discuss the common types of retaining walls used in today’s construction.
Learning Objective 2:
Learners will be able to identify the best applications of a cast-in-place concrete retaining wall, and alternatives to cast-in-place.
Learning Objective 3:
Learners will be able to analyze the different types of gravity retaining walls and their advantages.
Learning Objective 4:
Learners will be able to understand the basic concepts of mechanically stabilized earth (MSE) systems and when to specify an MSE wall or slope.
Learning Objective 5:
Learners will be able to consider site layout concerns when locating a retaining wall.
LUs: 2.5 LU Type: LU|HSWs.
Prerequisites: Experience in site design
Advance Preparation: None
Program Level: Intermediate
Course Expiration Date:
Complaint Resolution Policy:
Complaints regarding this course can be emailed to firstname.lastname@example.org or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.