The Stone Strong system has been evaluated through the US Federal Highways Administration (FHWA) Highway Innovative Technology Evaluation Centre (HITEC). HITEC serves as a US based clearing house for implementing highway innovation by conducting nationally focused evaluations of new products and technologies. Evaluation was based on design, construction, performance and quality assurance information supplied by Stone Strong USA. Submitted design methods are in accordance with AASHTO (2002) for gravity retaining wall design.

HITEC evaluation is similar to NZTA or VicRoads approval. Contact us for a copy of the February 2010 HITEC Report.