Triad Engineering, Inc.
Winchester,
Virginia
View Accreditation Certificate
Raymond
Strother
200 Aviation Drive
Winchester
,
Virginia
22602
Phone: (540) 667-9300
Fax: (540) 667-2260
rstrother@triadeng.com
http://www.triadeng.com
26-3308 : The entire accreditation has been suspended
26-5603 : Accreditation has been suspended for Aggregate standard(s) C128, C136
26-5603 : Accreditation has been suspended for Quality Management System standard(s) C1077 (Aggregate)
Quality Management System - accredited since 11/6/2017
C1077 (Concrete), D3740 (Soil), E329 (Concrete)
Soil - accredited since 1/15/2016
D421, D422, D698, D1557, D1883, D2216, D2487, D4318, D6938
Aggregate - accredited since 1/15/2016
C40, C117, C127
Concrete - accredited since 11/6/2017
C31 (Cylinders), C39, C138, C143, C172, C173, C231, C511, C617 (11000 psi and below), 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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