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INSTRUCTORS: 
Stacey E. Dorn, P.E.
Mark R. Goudschaal, P.E.
Kevin J. Rust. P.E.
Judd J. King, G.E., P.E.
Douglas R. Jenevein, P.E.

Course Length: 1 hour

Purpose and Background

These presentations were recorded at the 2024 Geo-Structures Conference.

Asset Management Utilizing Landslide Best Practices (19 minutes)

This presentation explains how geotechnical engineers manage slope inventories using a systematic approach to assess landslide risks and consequences. It highlights the development and implementation of regional models for evaluating slope stability and risk factors, emphasizing the importance of local geology, such as the Pittsburgh red beds, in shaping these models. The speaker explains a hazard rating system that combines risk, consequence, and threat tolerance to prioritize mitigation efforts effectively. The discussion also touches on the critical role of data management systems in standardizing observations, tracking mitigation efforts, and ensuring cost-effective long-term strategies. This method offers tailored solutions to owners while optimizing resource allocation.

Gallatin U.S.42 Slide Repair History and Construction Challenges (26 minutes)

This presentation covers the decades-long battle with landslide issues along a 1.2-mile stretch of U.S. 42 in Gallatin County, Kentucky. The speakers outline the historical context, challenges with unstable riverbanks, and extensive geotechnical investigations that shaped the final design. Through innovative construction techniques, such as tieback walls, soldier beams, and dynamic sequencing, the team successfully stabilized the area despite unforeseen challenges like ground movements and unexpected obstacles like old asphalt layers. The discussion highlights how collaboration, adaptive problem-solving, and rigorous monitoring ensured the road's long-term stability, improved safety, and a resilient new roadway design.

Stabilization of the Fremont Hall Landslide (19 minutes)

This case study examines the stabilization of a massive landslide that impacted Fremont Hall at Cal Poly, San Luis Obispo, following severe storms. The presentation highlights the unique geological challenges, including the Franciscan Melange formation, and the complications introduced by historical grading practices. Using advanced subsurface investigations and innovative techniques like tie-back anchored galleries, the team achieved stabilization while minimizing disruption to campus life. The speakers discuss drainage systems, monitoring protocols, and design-build collaboration that restored safety and usability for the dormitory and surrounding areas. This project exemplifies resilience in geotechnical engineering through tailored and sustainable solutions.

Benefits and Learning Outcomes

Upon completion of these sessions, you will be able to:

• Identify the key components of a slope management system used in landslide risk assessment and mitigation.
• Discuss the U.S. 42 landslide site geological challenges and implementation of tieback walls and soldier beams to stabilize the slope.
• List the design-build process and the stabilization methods implemented to secure the site.
• Describe the construction challenges and the strategies used to overcome for landslide site projects.

Assessment of Learning Outcomes

Learning outcomes are assessed and achieved through passing a 10 multiple choice question post-test with at least a 70%.

Who Should Attend?

• Environmental Engineers
• Geotechnical Engineers
• Structural Engineers
• Construction Engineers
• Project Managers
• General Contractors

How to Earn your PDHs and Receive Your Certificate of Completion

This course is worth 0.1CEU/1 PDH. To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 365 days of the course purchase.

How do I convert CEUs to PDHs?

1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]