SCOTT R. DIXON, P.E., C.G.
Geotechnical Engineer
PROFESSIONAL REGISTRATIONS:
-Maine Registered Professional Engineer
-Maine Certified Geologist
PROFESSIONAL MEMBERSHIPS:
-American Society of Civil Engineers
-Association of Engineering Geologists
EDUCATION:
-Bowdoin College, B.A., 1987 (Geology and Biology)
-The University of Missouri-Rolla, B.S., 1992 (Geological Engineering, Magna Cum Laude)
-The University of Missouri-Rolla, M.S., 1993 (Geological Engineering)
GENERAL BACKGROUND:
Mr. Dixon is a Senior Geotechnical Engineer supporting RWG&A's Chief and Principal Engineers on geotechnical projects as well as RWG&A's Geohydrologic staff on environmental and groundwater related projects. He develops and coordinates field exploration programs, performs engineering analyses, prepares technical reports, and participates in design development meetings.
Mr. Dixon has nineteen years of wide-ranging experience on geotechnical, environmental, construction, geologic/geohydrologic, and rock engineering projects throughout Maine and the northeastern U.S. Primary geotechnical skills include site characterization, evaluating consolidation settlement and preload surcharge of compressible soils, slope stability assessment, and providing recommendations for communication tower foundations.
Environmental experience includes performing Phase I and II Environmental Site Assessments of commercial and timber properties, implementing and evaluating impacted groundwater and soil sampling and monitoring programs, and overseeing and documenting site clean-up activities for regulatory agency review. Construction experience includes oversight of fill placement, slope stability improvement measures, pre-blast survey and controlled blast monitoring, crack monitoring, and construction trouble-shooting including foundation and roadway subgrade improvement.
Geological experience includes comprehensive engineering geologic characterization using test borings, test pits, and geophysical methods for engineering analysis of civil works projects including multi-story buildings, energy facilities, dams, and communication tower sites. Conducted geologic/geohydrologic investigations for soil and quarry rock borrow sources and new water supply wells, and analyzed pump test data to determine aquifer characteristics and recommend production pumping parameters.
Primary rock engineering skills include rock mass characterization by rock core samples, site reconnaissance, and bedrock mapping for application to rock cut design; design and monitoring of rock slope stability measures including rock reinforcement, selected scaling, and reinforced shotcrete; and, designing rock fall zone protection measures such as catchment ditch and fencing.
REPRESENTATIVE EXPERIENCE:
-Retail Development, Augusta, Maine - Compiled information from over 200 subsurface explorations and mapping of bedrock structural features in existing quarries on a 45-acre site to provide geotechnical recommendations for site design and construction, including 1,900 feet of rock cuts up to 60 feet in height, and fills ranging from 10 to 60 feet thick over and adjacent to compressible, landslide susceptible marine soils. Designed surcharges for preconstruction settlement and evaluated settlement data for surcharge removal. Improvements for rock cut stability included an intermediate bench at critical weathered zone, design and oversight of reinforced shotcrete, and design of long and short rock bolts to reinforce potentially unstable areas.
-Retail Development, Waterbury, Connecticut - Mapped bedrock structural features on a 20-acre site to provide design recommendations for 1,000 feet of new rock cuts up to 50 feet in height. Visually assessed conditions along 600 feet of an existing rock cut and identified overhanging rock features which were removed by mechanical scaling to improve long-term stability and safety of the cut. Evaluated published data and computer-simulated rock fall analysis to provide fall zone fence design recommendations to compensate for an under-sized fall zone adjacent to a trafficked area.
-Retail Development, Portland, Maine - Compiled information from over 120 subsurface explorations on a 17-acre site to provide design recommendations in mixed shallow bedrock/thick clay/organic soil/miscellaneous fill foundation conditions. Evaluated feasibility of shallow, intermediate, and deep foundation alternatives using improvements such as overexcavation, lightweight fill, reinforced bearing pads, preconsolidation with surcharge and wick drains, crawl spaces replacing fill loads, and driven H-piles in corrosive environment.
ALSO OF NOTE:
-OSHA 40 hour Training in Health and Safety for Hazardous Waste Operations
-OSHA 8 hour Annual Hazardous Waste Operations Safety Refresher Training
-Completed Troxler Electronic Laboratories, Inc., Radiation Safety Training Course
-Sigma Gamma Epsilon Earth Science Honor Society
-Emory University Geology Field Camp, northwestern Georgia
