Terracon Consultants, Inc.
Bismarck,
North Dakota
View Accreditation Certificate
Patrick
Coyne
1502 Grumman Lane
Suite 4
Bismarck
,
North Dakota
58504
Phone: (701) 258-2833
Fax: (701) 258-2857
patrick.coyne@terracon.com
http://terracon.com
Quality Management System - accredited since 8/1/2000
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil)
Asphalt Mixture - accredited since 8/1/2000
T30, T166, T209, T269, T308, T312, T324, T355, D2041, D2726, D2950, D3203, D5444, D6307, D6925
Soil - accredited since 11/16/2017
R58, T88, T89, T90, T99, T100, T134, T180, T265, T310, D421, D422, D558, D698, D1140, D1557, D2216, D4318, D4718, D6938
Aggregate - accredited since 11/1/2000
R76, T11, T19, T21, T27, T84, T85, T96, T112, T113, T176, T255, T304, T335, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D2419, D5821
Concrete - accredited since 12/3/2012
M201, R60, R100 (Beams), R100 (Cylinders), T22, T97, T119, T121, T152, T309, C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C231, C511, C1064, C1231 (7000 psi and below)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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