toggle menu AASHTO R-18 Accredited Interstate Testing Services in St. Louis, MO Interstate Testing Services in St. Louis, MO is a premier independent testing facility that offers highway construction materials testing, hot mix asphalt performance testing, and mix design services as well as analysis of asphalt binders, concrete and aggregates for producers, refineries and asphalt plants throughout Missouri and surrounding states. Go To Physical Lab Go To Binder Lab Go To Field Testing Accredited We are an AASHTO re:source participating laboratory with R-18 accreditation. We employ experienced quality control technicians highly trained in the industry’s most advanced technology and equipment. Experienced With experience totaling over 100 years, our skilled technicians combine forward thinking with the latest technologies to create the most economical mix designs and optimize product quality throughout production. Reliable & Efficient Our DOT-certified technicians know that time is critical in this ultra-competitive construction industry. Let Interstate Testing Services help you design the most economical mix to win jobs or have one of our skilled technicians optimize the quality of your product during production. We have the capabilities to send technicians to job sites and facilities to perform asphalt, concrete, aggregate, and nuclear density testing services and deliver results with accurate efficiency. © Interstate Testing Services 2021 Web Design by MayeCreate Design We use cookies on our website to enhance your user experience and to analyze site usage so we can further improve our website and marketing. By clicking "Ok" you agree to our use of cookies. To learn more about how we use cookies, view our Privacy Policy. Ok

toggle menu Contact Let us help with your next project. Contact West Plains Bridge & Grading. Our experienced team of project managers and superintendents are ready to help you. Office Get Directions 1594 Imperial Center West Plains, Missouri 65775 Phone:(417) 256-6554 Fax:(417) 256-1034 Email: wpbginfo@westplainsbridge.com Careers: wpbgcareers@westplainsbridge.com West Plains Bridge & Grading Contact Us Submit Proudly Serving Missouri, Arkansas, Oklahoma, Illinois, and Tennessee 1594 Imperial Center, West Plains, MO 65775 | (417) 256-6554 © 2021 West Plains Bridge & Grading | Web Design by MayeCreate Design We use cookies on our website to enhance your user experience and to analyze site usage so we can further improve our website and marketing. By clicking "Ok" you agree to our use of cookies. To learn more about how we use cookies, view our Privacy Policy. Ok