Retaining Walls and Lateral Earth Pressure
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Thursday, October 13, 2022
10:00 am – 12:00 pm CDT
Bill Simpson, P.E.
Defining “the wall”
Identifying forces on a retaining wall
How to account for and resist soil pressure
How water pressure impacts a retaining wall
The properties of the soil that contribute to the wall design
Equations and examples
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2.0 HSW CE Hours
2.0 AIA LU|HSW
2.0 HSW CE Hours
2.0 LA CES HSW PDHs
2.0 ASFPM CECs
International Code Council:
.2 CEUs (Sitework)
Continuing Education Credit Information
This webinar is open to the public and is designed to offer 2.0 PDHs to professional engineers, 2.0 HSW continuing education hours to licensed architects, and 2.0 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 2.0 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 2.0 HSW PDHs. Only full participation is reportable to the LA CES.
The International Code Council has approved this event for .2 CEUs in the specialty area of Sitework (Preferred Provider No. 1232).
This webinar has been approved by the Association of State Floodplain Managers for 2.0 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 (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 Walls and Lateral Earth Pressure
Delivery Method: Live Online
Course Description: This two hour course covers forces on retaining walls, how to account for and resist soil pressure, how water pressure impacts a wall, properties of soil that contribute to wall design, equations and examples of successful designs.
Learning Objective 1:
Learners will be able to identify and describe various types of retaining walls, their functions and purpose.
Learning Objective 2:
Learners will be able to identify and analyze various forces on retaining walls.
Learning Objective 3:
Learners will be able to explain how to account for and resist soil pressure on walls.
Learning Objective 4:
Learners will be able to discuss how water pressure impacts a retaining wall and how to account for it.
LUs: 2.0 LU Type: LU|HSWs.
Prerequisites: Some familiarity with earthwork and site analysis concepts
Advance Preparation: None
Program Level: Intermediate
Course Expiration Date: 08/13/2024
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.