Retaining Wall Design and Slope Stabilization Techniques
DISCLAIMER
Before purchasing, review the rules of your licensing or certifying entity. It is your responsibility to confirm this course meets your CE requirements. See the credit tab on the course page for details.
What’s Included: Full webinar recording, written course materials, expert instruction, a mandatory quiz, and a certificate upon completion.
Deliverability Timeline: All courses are generally available within 1-2 weeks after the live presentation.
CE Credits: AIA and/or LA/CES accreditation is available by request for courses recorded prior to March 11, 2026. All courses after that date include those accreditations by default, if applicable. With these accreditations, our courses qualify for credit in nearly all states for engineers, surveyors, architects, and landscape architects.
Learn more about the on-demand format in our FAQ or contact us at (715) 835-5900 or customerservice@halfmoonseminars.org
Agenda
Registration: 8:00 – 8:30 am
Morning Session: 8:30 am – 12:15 pm
Lunch (On your own): 12:15 – 1:15 pm
Afternoon Session: 1:15 – 5:00 pm
Types of Retaining Walls
Traditional cantilevered retaining walls
• Reinforced concrete walls
• Reinforced concrete masonry walls
Soldier pile and lagging walls
Traditional timber walls
Traditional gravity walls
Reinforced soil retaining walls
Anchored retaining walls (tie-backs, soil nailing, etc.)
Temporary retaining walls
Over-steepened reinforced slopes
Gabion walls Crib walls
Private-sector vs. highway retaining wall systems
Retaining Wall Design
Soil design parameters
Lateral earth pressure
External stability
• Sliding
• Overturning
• Bearing capacity
• Settlement
• Scour
Internal stability Global stability
Special considerations for tiered retaining walls
Backfill Groundwater
Service life Design software
Slope Stabilization
Science of slope stability
Surficial vs. deep-seated slope stability
Long term vs. short term stability
Slope stabilization techniques
• Regrading
• Excavation and replacement
• Slope reinforcement/pinning
• Ground improvement
• Toe retaining walls
Retaining Wall and Slope Stabilization Case Histories
Various commercial, residential projects
Various highway and institutional projects
Credits
Architects &
Landscape Architects
7.0 HSW Contact Hours/CEUs
7.0 AIA HSW Learning Units
7.0 LA/CES HSW PDHs
Professional Engineers
7.0 PDHs
Geologists
Non-Credit CE
Floodplain Managers
7.0 ASFPM CECs
Continuing Education Credit Information
This seminar is open to the public and offers 7.0 HSW continuing education hours to architects and landscape architects and 7.0 PDHs for engineers in most states, including Missouri and Illinois. Educators and courses are not subject to preapproval in these states.
HalfMoon Education is deemed an approved continuing education sponsor for architects and landscape architects in New York. HalfMoon education is an approved continuing education sponsor for engineers in Florida, Maryland, New Jersey, New York (NYSED Sponsor No. 35), North Carolina, and North Carolina.
This seminar is approved by the American Institute of Architects for 7.0 HSW Learning Units (Sponsor No. J885) and the Landscape Architecture Continuing Education System for 7.0 HSW PDHs.
The Association of State Floodplain Managers has approved this course for 7.0 CECs.
This seminar offers a non-mandatory continuing education opportunity to geologists.
Attendance will be monitored and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.
Speakers
Terry Mccleary
McCleary Engineering
McCleary Engineering specializes in geotechnical investigations and recommendations for foundation design, retaining walls, slope stability, embankments, pavement design and rehabilitation, subgrade treatments and other engineering services such as drainage studies. McCleary Engineering is Illinois Department of Transportation (IDOT) prequalified in general geotechnical services, subsurface explorations, structure geotechnical reports and construction inspection categories.
Mr. McCleary has nearly 19 years of construction and geotechnical engineering experience with IDOT. Six years were spent on the front lines of contract administration in construction as a resident engineer on bridge and roadway projects which included construction layout, material inspection and construction practice inspection. For the last 13 years at IDOT, Mr. McCleary was the District #3 geotechnical engineer, working with hands-on subsurface investigations; analysis, design, and inspection of geotechnical engineering projects; and on-the-spot problem solving. He has served on numerous statewide committees involving abutment design, piling, aggregate subgrade, subgrade stability, pavement under drains and pavement rehabilitation. He served on a nationwide Federal Highway Administration (FHWA) pooled fund study on deep soil mixing technology. In 2009, Mr. McCleary left IDOT to work full time at his company, McCleary Engineering. Mr. McCleary is a licensed professional engineer in the states of Illinois, Indiana, Iowa, Georgia, Montana, Michigan, Ohio, Oklahoma and Wisconsin. He is a member of the American Society of Civil Engineers, the National Society of Professional Engineers, the Deep Foundations Institute, the Pile Driving Contractors Association and the Illinois Association of Highway Engineers. He is currently serving on the NCHRP Committee for the research of bridge scour on gravel bed rivers.