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' ROGER A. ARCHABAL, P.E. <br />Senior Associate <br />J <br />h <br />EDUCATION <br />Project Management <br />Field Investigation Programs <br />Geotechnical Engineering <br />University of New Orleans, Master of Science in Civil Engineering ( Geotechnical) <br />Arizona State University, Bachelor of Science n Civil Engineering <br />' YEARS OF PROFESSIONAL EXPERIENCE 22 <br />PROFESSIONAL REGISTRATION AND CERTIFICATION <br />Registered Professional Engineer <br />Active: Florida, Louisiana, and Nevada <br />Inactive: Arizona, Maryland <br />SUMMARY OF QUALIFICATIONS <br />Mr. Archabal has over twenty years of geotechnical engineering experience and has practiced in <br />numerous and varied geological regions in the United States and abroad. This includes the states <br />bordering the Gulf of Mexico, the and region states of Arizona and Nevada and the Northeastern and <br />Southeastern region states. His international geotechnical experience includes major port facilities in the <br />Republic of Panama, Chile and Guatemala and roadway/bridge projects in the Virgin Islands. Mr. <br />Archabal is experienced in all aspects of geotechnical engineering, especially difficult foundations in <br />coastal environments. He has performed hundreds of geotechnical explorations of varied size and scope <br />including single story to high rise buildings for residential and commercial developments, earth <br />structures, retaining walls, marinas, port facilities, large diameter storage tanks, underground utilities, <br />transmission towers, roadways, airports and bridges. <br />Mr. Archabal has managed numerous projects covering a wide variety of deep foundation systems <br />including driven piles, drilled piers, augercast piles and pressure injected footings. He has designed and <br />executed dozens of pile load tests for ultimate loads of up to 400 tons. The treatise of his master's degree <br />thesis dealt with the estimation of pile load capacities based on soil properties and load tests. <br />Mr. Archabal has extensive experience with coastal geotechnical engineering structures including earthen <br />levees (embankments), piers, relieving platforms, breakwaters, retaining walls and cofferdams. Typical <br />coastal engineering explorations have covered issues including earth slope stability, foundation support, <br />geosynthetic slope and base reinforcement, preloading to reduce settlements and improve stability. His <br />retaining wall experience includes cantilevered and tie back walls as well as concrete gravity walls. He <br />has also performed geotechnical failure investigations for both earth structures and retaining walls. <br />Mr. Archabal has experience in and environments of the Southwestern United States, particularly the river <br />' alluvial basin environments. He has analyzed and designed high capacity shallow foundations (mats and <br />footings) as well as drilled shafts in this region. He has performed studies on collapsible silts and <br />expansive clays. <br />' Mr. Archabal has extensive experience in soil improvement. This includes fill preloading, vertical "wick" <br />drain systems and time -rate settlement analysis to minimize post - construction settlements, chemical <br />stabilization to improve the supportive capacity of pavement structures, and geosynthetic reinforcement <br />for improved load carrying characteristics. <br />� I <br />L-;7 LANGAN <br />NEEFin•G d [NV.•.90NinfMnt SEgVlGES <br />