Granite Construction Company
Everett,
Washington
View Accreditation Certificate
Steve
Krogh
2111 Ross Ave
Everett
,
Washington
98201
Phone: (425) 249-6673
Fax:
steve.krogh@gcinc.com
http://www.graniteconstruction.com
Quality Management System - accredited since 11/3/2010
R18, D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 11/3/2010
R30, R35, R47, R97, T30, T166, T209, T269, T275, T305, T308, T312, T329, T355, D979, D2041, D2726, D2950, D3203, D3549, D4867, D5444, D6307, D6390, D6925, D6931
Soil - accredited since 11/6/2015
R58, T89, T90, T99, T180, T265, D421, D698, D1557, D2216, D4318
Aggregate - accredited since 11/3/2010
R76, R90, T11, T19, T27, T37, T84, T85, T100 (Mineral Filler), T112, T176, T255, T304, T335, C29, C117, C127, C128, C136, C142, C566, C702, C1252, D75, D546, D2419, D4791, D5821
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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