Thank you for visiting Internal Design of MSE Walls and Geosynthetics. You may register for this part of the series on this page. In order to register for the complete series click on the link below. You may also call us and we can register you for an individual webinar or the series.

Internal Design of MSE Walls and Geosynthetics (this page)


Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before start time.

Wednesday, October 27, 2021
10:00 am – 1:15 pm CDT (incl. a 15-min break)


Presented by:
Bill Simpson P.E.

• Materials used in construction of an MSE wall
• What constitutes “the wall” when discussing an MSE wall
• Properties of common geosynthetics
• How an MSE wall differs from other wall types
• Discussion of different blocks, reinforcement, and their interaction
• Design code requirements for an MSE wall
• How an MSE wall interacts with other site features such as building and utilities
• Equations, calculations, and examples of internal stability of an MSE wall
• Case histories of MSE wall failures highlighting what NOT to do


 Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection:
 Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


Professional Engineers:
3.0 PDHs

3.0 HSW CE Hours

AIA:    (AIA credits only available for attending live Webinar)
3.0 LU|HSW

Landscape Architects:
3.0 HSW CE Hours

LA CES:    (AIA credits only available for attending live Webinar)
3.0 HSW PDHs

Floodplain Managers:

International Code Council:
.3 CEUs (Sitework)


Continuing Education Credit Information
These webinars each offer 2.0/3.0 PDHs to professional engineers and 2.0/3.0 HSW
continuing education hours to architects in all states. These webinars offer 2.0/3.0
HSW continuing education hours to landscape architects licensed in all states,
except Florida, New Jersey, or North Carolina.

HalfMoon Education is an approved continuing education sponsor for engineers in
Florida (Provider No. 0004647), Indiana (License No. CE21700059), Maryland, New
Jersey (Approval No. 24GP00000700), North Carolina (S-0130), and North Dakota.
HalfMoon Education is deemed an approved continuing education sponsor for
New York engineers, architects, and landscape architects via its registration with
the American Institute of Architects Continuing Education System (Regulations
of the Commissioner §68.14(i)(2), §69.6(i)(2), and §79-1.5(i)(2)). Courses approved
by the AIA/CES qualify for Florida and New Jersey architects. Other states do not
preapprove continuing education providers or courses.

These courses have been approved by the American Institute of Architects
Continuing Education System for 2.0/3.0 LU|HSW (Sponsor No. J885) and the
Landscape Architect Continuing Education System for 2.0/3/0 HSW PDHs. Only full
participation is reportable to the AIA/CES and LA CES.

The Association of State Floodplain Managers has approved these courses for
2.0/3.0 CECs.

These courses are approved by the International Code Council for .2/.3 CEUs in the
specialty area of Sitework (Preferred Provider No. 1232).

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.

AIA Info

AIA Provider Statement:

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 ( or (800) AIA 3837, Option 3).

This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

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: Internal Design of MSE Walls and Geosynthetics

Delivery Method: Live Online

Course Description: This three hour course will cover the design of and materials used in the construction of mechanically stabilized earth (MSE) retaining walls. It will examine geosynthetics, wall properties, code requirements, equations and calculations, and case histories of MSE failures that highlight what NOT to do.

Learning Objectives:

Learning Objective 1:
Learners will be able identify and describe the materials that are used in the construction of a MSE wall, which include geosynthetics.

Learning Objective 2:
Learners will be able to compare geosynthetics that are used in MSE walls by cost, strength and applications.

Learning Objective 3:
Learners will be able to describe how MSE walls interact with other site features such as buildings and utilities, and they will be able to discuss the effects of water on the design and stability of the wall.

Learning Objective 4:
Learners will be able to work with calculations for internal stability of a MSE wall and be able to reference and understand code requirements for MSE walls.

LUs: 3.0                                                                                              LU Type: LU|HSWs.

Prerequisites: Experience with site development and design.

Advance Preparation: None

Program Level: Intermediate

Course Expiration Date: 08/13/2024

Complaint Resolution Policy:

Complaints regarding this course can be emailed to 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

Streamable MP4/PDF Price: $160.00