On March 6, the Phoenix College Physical Sciences department is proud to welcome guest speaker, James J. Lemmon, RG.
Jim Lemmon is a registered Geologist in Arizona and has worked in water rights, groundwater hydrology, waste management, and environmental issues for 30 years prior to joining the Arizona Department of Transportation (ADOT) in 2007. Since March 2015 he has been the Geologist in the Geotechnical Section of the Bridge Group at ADOT.
His duties include investigating landslides and rock falls; triage of failing pavement and structures where geologic conditions are suspect; and a variety of geotechnical investigations associated with bridges, culverts, embankments and cut slopes. Jim is a US Army Vietnam veteran and received his undergraduate degrees in Forestry and Geology from Colorado Mesa University in Grand Junction, Colorado and his graduate degree in Geography from ASU in Tempe, Arizona.
Here is a brief abstract on what Mr. Lemmon's speech, "My Life as an ADOT Geologist and My Journey along the Way” will be about:
The earth sciences have been a draw to me since I was a boy hunting fossils in gravels quarried from thick limestone deposits in northern Illinois. As an adolescent, I was fascinated by and explored the majestic landforms of the Rocky Mountains, and the Colorado Plateau country of Arizona, Utah, New Mexico and Colorado. I have been fortunate to have spent the majority of my adult career working in Arizona with groundwater resources, environmental regulatory programs, and geologic engineering projects.
For the last four years, I have been the Geologist in the Geotechnical Section of the Bridge Group, Arizona Department of Transportation. Flooding, landslides, rockfalls, earth fissures and groundwater conditions present geology-in-action challenges to the over 6,000 miles of our transportation system. This presentation will share some of the interesting locations, geologic conditions and engineered solutions keeping our highways open through some of Arizona’s difficult terrains.