SEDC Steering Committee

user iconRandy Billinger
Treasurer
location icon Kansas Department of Transportation
2300 Van Buren Street
Topeka, KS 66611

phone icon785-291-3037

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user iconDan Blankenau
location iconCoranco Great Plains, Inc.
Box 23
Wahoo, NE 68066

phone icon402-443-4340

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user iconStacy G. Brocka, P.E.
location iconOlsson Associates
7157 Vista Drive
West Des Moines, IA 50266

phone icon515.867.2764

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user iconChris Clarke
location iconOklahoma Department of Transportation
Materials & Research Division
Geotechnical Branch
200 Northeast 21st Street
Oklahoma City, OK 73105

phone icon405-522-4998

print icon(fax) 405-522-0552

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user iconElisabeth Decoursey
location iconKansas City Testing & Engineering, LLC
1308 Adams Street
Kansas City, KS 66103

phone icon913-321-8100

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user iconDale Glenn
location iconMissouri Dept of Transportation
1617 Missouri Blvd.
Jefferson City, MO 65109

phone icon573-526-4341

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user iconKevin Griese
location iconGeotechnical Engineering Activity
South Dakota Department of Transportation
700 East Broadway Avenue
Pierre, SD 57501

phone icon605-773-3401

print icon(fax) 605-773-5867

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user iconRichard Gotsch
location iconCentral Mine Equipment
4215 Rider Trail North
Earth City, MO 63045

phone icon314-262-7232

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user iconKyle Halverson, P.G.
Professional Geologist II
location iconKansas Department of Transportation
Bureau of Structures and Geotechnical Services
Topeka, KS

phone icon785-291-3860

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user iconJeremiah Harjo
location iconOklahoma Department of Transportation
200 NE 21st Street
Oklahoma City, OK 73105

phone icon105-522-4996

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user iconScott Helm
location iconMontanna Dept. of Transportation
Geotechnical Section
2701 Prospect Ave. PO Box 20101
Helena, MT 201001

phone icon406-444-6279

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user iconRobert Henthorne
Executive Director
location iconMid-States Materials
14400 Ferguson Road
Valley Falls, KS 66088

phone icon785-640-2477

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user iconDerric Iles
location iconSouth Dakota Geological Survey
Akeley Science Center
University of South Dakota
414 East Clark Street
Vermillion, SD 57069

phone icon605-677-5227

print icon(fax) 605-677-5895

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user iconGreg Malsam
location iconGeotechnical Engineering Activity
South Dakota Department of Transportation
700 East Broadway Avenue
Pierre, SD 57501

phone icon605-773-3401

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user iconMatt Marxsen
Secretary
location iconConservation and Survey Division (Nebraska Geological Survey)
School of Natural Resources
621 Hardin Hall
Lincoln, NE 68583-0996

phone icon402-472-6863

print icon(fax) 402-472-2946

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user iconScott Mounce
location iconAlfred Benesch & Company
825 "J" Street
Lincoln, NE 68505

phone icon402-479-2200

print icon(fax) 402-479-2276

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user iconBlake Nelson
location icon1400 Gervais Avenue
Maplewood, MN 55109

phone icon651-779-5599

print icon(fax) 651-779-5510

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user iconJared Nuhn
location iconWyoming Dept of Transportation
5300 Bishop Blvd.
Cheyenne, WY 82009

phone icon307-777-4203

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user iconVincent (Butch) Reidenbach, Ph.D., P.E.
Geotechnical Engineering Consultant,
Agricultural EngineeringConsultant,
Oil Field Services Consultant
location icon 15601 Claremont Blvd
Edmond, OK 73013

phone icon405-642-7794 (Cell)

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user iconDavid Thomas
location iconSoils & Geotechnical Program
Colorado Department of Transportation
4670 Holly Street, Unit A
Denver, CO 80216

phone icon303-398-6604

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user iconKenny Tuttle
location iconMissouri Dept of Transportation
1617 Missouri Blvd.
Jefferson City, MO 65109

phone icon573-523-4342

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user iconCraig Walker
location iconWyoming Department of Transportation
5300 Bishop Blvd.
Cheyenne, WY 82009

phone icon307-777-4203

print icon(fax) 307-777-3994

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