Abstract:
Landslide remediation technologies and techniques utilized to repair recent landslides in PennDOT District 11-0 (Allegheny, Beaver, and Lawrence Counties) have applied an assortment of innovative geotechnical solutions to stabilize problematic slopes. Alternatives analyses performed during the Preliminary Design phase must account for a variety of factors to determine feasible, appropriate, and cost-effective landslide remediation treatment options. Many of these constraints are not necessarily related to geology or geotechnical issues. An effective and lasting landslide remediation treatment design must address all project-specific limiting factors. Limiting factors encountered on recent District 11-0 landslides include: proximity of the site to nearby streams, rivers, or other environmentally sensitive areas; encroachment onto private property or other facilities outside of Department right-of-way; existing utilities servicing critical facilities; roadway drainage facilities;