His experience includes assessment of stability, liquefaction potential, and stress-strain behavior of concrete and earth dams, and design of retrofits for dams and embankments; development of geotechnical monitoring strategies; analysis of geotechnical field data; engineering recommendations for closure systems, and foundations and retaining structures; engineering analysis for landfill designs and stormwater management systems; preparation of construction bid documents, including technical specifications, engineering drawings, and construction plans; analysis of waste properties; and the evaluation of settlement of residues.
Lucas’ experience includes the analysis, monitoring, and assessment of geotechnical data associated with design, monitoring, and construction on dredge disposal and mine sites. He is also experienced in quality assurance procedures for geosynthetics and soils. His portfolio of clients includes public and private entities.
Notably, Lucas was the technical lead for geotechnical monitoring and stability analysis during the construction of the Delaware Solid Waste Authority's Cherry Island Landfill in Wilmington, Delaware, a 1.5-mile long, 60-foot high mechanically stabilized earth berm built over soft dredge materials. For the Tennessee Valley Authority (TVA) Blue Ridge Hydroelectric Plant in Fannin County, Georgia, Lucas and a team of Geosyntec engineers assessed the seismic stability of the Blue Ridge Dam, one of the tallest embankment dams in the Southeastern United States. The project includes an extensive field investigation, laboratory testing program, and analytical and numerical modeling evaluation. Other dam-related projects include stability assessments for John Sevier Dam, Wilbur Dam, Croton Dam, Beaver Creek Dam, and Clear Creek Dam.
To advance the state of the practice, Lucas is a frequent contributor to journal publications. Currently he is an adjunct professor at The Johns Hopkins University in Baltimore, Maryland, where he teaches soil mechanics and foundations engineering.