Yeh and Associates, Inc.
Grand Junction,
Colorado
View Accreditation Certificate
Marisa
Connors
588 N. Commercial Dr.
Grand Junction
,
Colorado
81505
Phone: (970) 412-9936
Fax:
mconnors@yeh-eng.com
http://www.yeh-eng.com
Quality Management System - accredited since 9/4/2015
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 9/4/2015
R47, R68, R97, T30, T166, T209, T245, T269, T308, T312, T329, T355, CP-L 5115, D979, D2041, D2726, D2950, D3203, D3549, D3665, D5444, D6307, D6925, D6926, D6927
Soil - accredited since 9/4/2015
R58, T88, T89, T90, T99, T180, T191, T265, T310, D421, D422, D698, D1140, D1556, D1557, D2216, D2487, D2488, D4318, D4546, D4718, D6938
Aggregate - accredited since 9/4/2015
R76, R90, T11, T19, T27, T84, T85, T176, T255, T335, C29, C117, C127, C128, C136, C566, C702, D75, D2419, D5821
Concrete - accredited since 12/4/2015
M201, R60, R100 (Beams), R100 (Cylinders), T22, T97, T119, T121, T152, T196, T231 (6000 psi and below), T309, C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C173, C231, C511, C617 (6000 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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