Alt & Witzig Engineering, Inc.
Carmel,
Indiana
View Accreditation Certificate
Joshua
Tinkle
4105 West 99th Street
Carmel
,
Indiana
46032
Phone: (317) 875-7000
Fax: (317) 876-3705
jtinkle@altwitzig.com
http://www.altwitzig.com
Quality Management System - accredited since 2/24/2014
R18, C1077 (Concrete), D3666 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Concrete)
Asphalt Mixture - accredited since 2/24/2014
R47, T166 (Cores), T355, D2726 (Cores), D2950
Soil - accredited since 2/24/2014
R58, T88, T89, T90, T99, T100, T134, T180, T208, T216, T265, T267, T288, T289, T296, T297, T310, D421, D422, D558, D698, D1140, D1557, D2166, D2216, D2435, D2487, D2488, D2850, D2974, D4318, D4643, D4767, D5084, D6938, G57
Aggregate - accredited since 2/24/2014
R76, R90, T11, T21, T27, T85, T255, C40, C117, C127, C136, C566, C702, D75
Concrete - accredited since 2/24/2014
C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C173, C231, C511, C617 (10000 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 2/28/2026. Please visit https://aashtoresource.org for current accreditation status.
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