Steering Committee
Randy Billinger PG
Stacy G. Brocka, PE
Allender Butzke Engineers Inc.3660 109th StreetUrbandale, IA 50322
Christopher R. Clarke, PE
Oklahoma Department of TransportationMaterials Division / Geotechnical Branch5201 NE 122nd St., Bldg 4011Edmond, OK 73013
Elisabeth DeCourseySEDC Treasurer
PresidentKansas City Testing & Engineering, LLC1141 Southwest Blvd.Kansas City, KS 66103
Andrew Fiske, PE
State Geotechnical EngineerWashington State DOT1655 2nd Ave SWTumwater, WA 98512
Nikolas Glennie, PE
Geotechnical EngineerNebraska Department of TransportationMaterials and Research Division1500 Nebraska ParkwayLincoln, NE 68502
Kevin Griese
South Dakota Department of TransportationGeotechnical Engineering Activity700 East Broadway AvenuePierre, SD 57501
Rich Hahler
Coranco Great Plains Inc.Box 23Wahoo, NE 686066
Kyle Halverson, PGSEDC Secretary
Professional Geologist IIKansas Department of TransportationBureau of Structures and Geotechnical ServicesTopeka, KS
Marty Howton
Drill CrewColorado department of Transportation18500 E ColfaxAurora, CO 80022
Scott Jensen
South Dakota Geological SurveyAkeley Science CenterUniversity of South Dakota414 East Clark StreetVermillion, SD 57069
Brad Jouppi
Central Mine Equipment4215 Rider Trail NorthEarth City, MO 63045-1106
Corby W. Key, PE
Arrowhead Engineering Co, LLC300 108Th Ave SENorman, OK 73026
Kyle J. Leistikow
Bureau of Structures and Geotechnical ServicesDistrict Four-Geology Office411 West 14th StreetChanute, KS 66720-0498
Matt MarxsenSEDC Executive Director
Field Service CoordinatorConservation and Survey Division(Nebraska Geological Survey)School of Natural Resources621 Hardin HallLincoln, NE 68583-0996
Dave Mather
Terracon15080 A CircleOmaha, NE 68144
Jonathan Neace
Supervisor | Field Investigation UnitMontana Department of Transportation2701 Prospect Ave.Helena, MT. 59620
Blake Nelson
1400 Gervais AvenueMaplewood, MN 55109
Vincent (Butch) Reidenbach, Ph.D., PE
Geotechnical Engineering Consultant,Agricultural Engineering Consultant,Oil Field Services Consultant15601 Claremont BlvdEdmond, OK 73013
Colter Schwagler
Geotechnical Section Team Lead North Dakota Department of Transportation
David Thomas
Soils & Geotechnical ProgramColorado Department of Transportation4670 Holly Street, Unit ADenver, CO 80216
TBD
Wyoming Department of Transportation5300 Bishop Blvd.Cheyenne, WY 82009
Brad Wadlow
Core Drill Supervisor, MODOT1617 Missouri Blvd.Jefferson City, MO 65109