TRACY J. LYMAN, P.G., P.E.  [Profile]

Senior Consultant

Mr. Lyman has over 35 years of experience in geological and geotechnical engineering specializing in rock and soil engineering and hydrogeology. He has applied this expertise to a variety of tunneling, water and wastewater infrastructure, trenchless technology, highway and bridge, mass transit, water development, hydroelectric, power, mining, and industrial waste management and remediation projects throughout the United States and abroad.

RAYMOND W. HENN, Ph.D., P.G.  [Profile]

Senior Consultant

Mr. Henn has more than 38 years of heavy and underground construction experience with a concentration in shafts and tunneling, water and wastewater, transportation and hydroelectric projects.

STEVEN C. KUEHR, P.E.  [Profile]

Senior Associate

Mr. Kuehr has over 29 years of progressive experience in geotechnical engineering as it relates to water supply, sewerage, water resources, commercial, industrial, highway, bridge and land development projects. He has technical expertise in foundation engineering, slope stability, expansive soils, ground modification, retaining walls, landslide evaluation and repair, embankment dam design and groundwater collection trenches and cutoffs constructed by the slurry trench method.

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