Evaluating and Rehabilitating Foundations and Retaining Walls: Science, Materials, and Techniques
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Webinar instructions will be emailed before the date of the webinar.
Please log into the webinar 15 – 30 minutes before start time.
Wednesday, May 31, 2023
8:30 am – 4:00 pm CDT (including a 60-min. break)
How Soil Behavior Affects Structural Performance
- Cohesionless soils
- Cohesive soils
- Unsuitable and problematic soils
Behavior of Retaining Walls
- Wall types and behavior
- Design considerations and lateral earth pressures
- Water management and drainage systems
- Common problems and failures
Tools of the Trade – Investigation Methods
- Subsurface explorations
- Non-destructive test methods for various materials
Shallow Foundations and Slabs-On-Grade
- Design considerations
- Typical construction
- Common problems and failures
Foundation and Retaining Wall Repairs
- Underpinning options
- Slab repair options
- Wall repair options
- Means and methods
- Failure examples with case studies
How Construction Affects Adjacent Buildings and How to Minimize Damage
- Lateral movement and settlement
- Preconstruction surveys/condition assessments
Each webinar session earns continuing education credit and can be registered for individually. 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.
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6.0 HSW CE Hours
6.0 LU | HSW
6.0 HSW PDHs
6.0 HSW PDHs
International Code Council:
.6 CEUs (Building)
Continuing Education Credit Information
This webinar is open to the public and is designed to qualify for 6.0 PDHs for professional engineers, 6.0 HSW continuing education hours for licensed architects, and 6.0 HSW continuing education hours for 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 6.0 HSW LUs (Sponsor No. J885). Only full participation is reportable to the AIA/CES.
The Landscape Architecture Continuing Education System has approved this course for 6.0 HSW PDHs. Only full participation is reportable to the LA CES.
The International Code Council has approved this event for .6 CEUs in the specialty area of Building (Preferred Provider No. 1232).
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).
The preceding credit information only applies to the live presentation. This course in an on-demand format may not be eligible for the same credits as the live presentation; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate. The following pre-approvals may be available for the on-demand format upon request:
6.0 HSW LUs (AIA)
6.0 HSW PDHs (LA CES)
Justin A. Dominguez, P.E.Senior Project Manager at Simpson Gumpertz & Heger Inc.
Mr. Dominguez joined SGH in 2023. He has over 15 yrs of experience in the exploration, design, and construction of shallow and deep foundations, excavation support systems, levees, floodwalls, marine terminals, piers, bulkheads, seawalls, and dams for a variety of clients including private developers, engineering firms, state and local government agencies, and energy utilities. His extensive geotechnical laboratory testing background supplements his project experience. He is a registered professional engineer in Massachusetts and Maine. He can be reached at firstname.lastname@example.org.
Jake E. Hughes, Ph.D., P.E.Consulting Engineer at Simpson Gumpertz & Heger Inc.
Mr. Hughes joined SGH in 2017. He has diverse experience in structural and geotechnical engineering, including the design, investigation, and repair of various types of structures. Mr. Hughes has participated in third-party reviews and failure investigations of retaining walls, structural evaluation and repairs of transportation infrastructure, and various new building design projects. Mr. Hughes is a registered professional engineer in Massachusetts. He can be reached at email@example.com.
Steven Keppel, P.E.Senior Consulting Engineer at Simpson Gumpertz & Heger Inc.
Mr. Keppel joined SGH in 2006. He has diverse experience in civil, geotechnical, and structural engineering, including investigating, designing, and rehabilitating a variety of structures. Mr. Keppel has participated in several investigations to determine causes of building settlement and retaining wall failures, and has experience with structural and geotechnical monitoring and instrumentation. Mr. Keppel is a registered professional engineer in Massachusetts. He can be reached at firstname.lastname@example.org.
Adam F. Murphy, P.E.Consulting Engineer at Simpson Gumpertz & Heger Inc.
Mr. Murphy joined SGH in 2018. He has experience in geotechnical engineering, including investigating, designing, and overseeing the construction of various earth structures. Mr. Murphy has participated in several investigations to determine the causes of groundwater seepage, excavation failure, and building settlement and has assessed the stability of slopes, excavations, and dams. Mr. Murphy also has experience with monitoring instrumentation and visual inspections for earthen embankment dams. Mr. Murphy is a registered professional engineer in Massachusetts. He can be reached at email@example.com.
Bryan P. Strohman, P.E., G.E. (CA), P.Eng (SK)Associate Principal at Simpson Gumpertz & Heger Inc.
Mr. Strohman joined SGH in 2006. He has over 15 years of diverse experience in geotechnical, civil, and structural engineering, including investigating, designing, and/or rehabilitating a variety of structures, including mechanically-stabilized earth walls, slopes, foundations, piles, excavation support systems, retaining walls, and underground structures. Mr. Strohman has performed numerous investigations to determine causes of building settlement, retaining wall failures, and slope failures. He has assisted in the resolution of several construction-related disputes by presentation of expert opinions in depositions, mediations, arbitrations, and at trial. He is a registered professional engineer in more than thirty states. He can be reached at firstname.lastname@example.org.
Giuliana A. Zelada-Tumialan, P.E.Associate Principal at Simpson Gumpertz & Heger Inc.
Ms. Zelada-Tumialan joined SGH in 2003. Her area of expertise is in geotechnical engineering. She provides planning, design, and construction support services in the areas of shallow and deep foundation systems, earth-retention systems, and groundwater monitoring for residential, commercial, and industrial buildings, power stations, and substations. Ms. Zelada-Tumialan has also participated in multiple investigations to determine causes of building settlement, retaining wall failures, and slope failures, and she has provided litigation support for various projects. She is a registered professional engineer in Massachusetts and several other states. She can be reached at email@example.com.
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: Evaluating and Rehabilitating Foundations and Retaining Walls: Science, Materials, and Techniques
Delivery Method: Live Online
Course Description: This six-hour course examines how soil behavior affects structural performance, common problems with shallow foundations, slabs-on-grade, and retaining walls, investigation methods to diagnosis problems and causes, the impact of nearby construction on existing foundations, and repair techniques for the type and cause of damage to various types of foundations and retaining walls.
Learning Objective 1:
Learners will be able to explain how soil conditions can affect structural performance and how subsurface explorations methods and non-destructive test methods can diagnose the causes of foundation damage.
Learning Objective 2:
Learners will be able to identify common shallow foundation, slabs-on-grade and retaining wall problem causes and design considerations and methods to determine causation.
Learning Objective 3:
Learners will be able to identify and describe foundation and retaining wall repair methods based on the diagnosis of the problem and its causes.
Learning Objective 4:
Learners will be able to explain how foundations can be damaged by construction activities at nearby sites and how the activity and damage can be monitored.
LUs: 6.0 LU Type: LU|HSWs.
Prerequisites: Familiarity renewable energy systems
Advance Preparation: None
Program Level: Intermediate
Course Expiration Date:
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