Best (and Worst) Practices for Retaining Wall Success and Interactive Workshop Wrap-Up
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Please log into the webinar 15 – 30 minutes before start time.
Thursday, November 17, 2022
10:00 am – 1:15 pm CDT (incl. 15-min. break)
Bill Simpson, P.E.
Preventing problems or wall failures through improved site layout
Preventing problems or failures through proper wall design techniques
Commonly overlooked design code requirements related to retaining wall layout and design
Roles and responsibilities of the design and construction team to ensure structure success
Typical causes of problems or structure failure
Recognizing and preventing a problem during construction
How water (both surface and below ground) affects an earth structure
What measures to take during construction to ensure long term earth structure success
Case histories and examples of failed structures
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3.0 HSW CE Hours
3.0 AIA LU|HSW
3.0 HSW CE Hours
3.0 LA CES HSW PDHs
3.0 ASFPM CECs
International Code Council:
.3 CEUs (Sitework)
Continuing Education Credit Information
This webinar is open to the public and is designed to offer 3.0 PDHs to professional engineers, 3.0 HSW continuing education hours to licensed architects, and 3.0 HSW continuing education hours to landscape architects in all states that allow this learning method. Please refer to specific state rules to determine eligibility.
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) and North Carolina (S-0130). HalfMoon Education is deemed an approved continuing education sponsor for New York engineers and architects via its registration with the American Institute of Architects Continuing Education System (Regulations of the Commissioner §68.14(i)(2) and §69.6(i)(2)). Other states do not preapprove continuing education providers or courses.
The American Institute of Architects Continuing Education System has approved this course for 3.0 LU|HSWs (Sponsor No. J885). Only full participation is reportable to the AIA/CES.
The Landscape Architecture Continuing Education System has approved this course for 3.0 HSW PDHs. Only full participation is reportable to the LA CES.
The International Code Council has approved this event for .3 CEUs in the specialty area of Sitework (Preferred Provider No. 1232).
This webinar has been approved by the Association of State Floodplain Managers for 3.0 CECs for floodplain managers.
Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (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 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 (firstname.lastname@example.org 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: Best (and Worst) Practices for Retaining Wall Success and Interactive Workshop Wrap-Up
Delivery Method: Live Online
Course Description: This course will examine various best (AND worst) practices that can lead to retaining wall success or failure. Topics covered include site layout, design techniques, commonly overlooked code requirements, typical causes of failure, and how to recognize problems during construction.
Learning Objective 1:
Learners will be able to explain how proper site layout can prevent structural problems or wall failures.
Learning Objective 2:
Learners will be able to identify and comply with commonly overlooked code requirements related to retaining wall layout and design.
Learning Objective 3:
Learners will be able to recognize and prevent common problems during wall construction.
Learning Objective 4:
Learners will be able to explain how water above and below the ground affects earth structures.
LUs: 3.0 LU Type: LU|HSWs.
Prerequisites: Experience with earthwork and site development
Advance Preparation: None
Program Level: Intermediate
Course Expiration Date: 08/13/2024
Complaint Resolution Policy:
Complaints regarding this course can be emailed to email@example.com 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.