Hill & Smith Inc.
Hill & Smith Inc. is an industry leading manufacturer of a wide range of transportation safety products. Through the manufacturing of our premier MASH-compliant impact attenuator, the Smart Cushion®, our extensively tested & MASH-compliant portable steel barrier, Zoneguard®, and our Work Area Protection product lines of Smart Work Zone Systems, message and arrow boards and traffic controls, Hill & Smith Inc. is dedicated to advancing Work Zone Safety, ITS, & Roadside Safety nationwide.
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Hill & Smith Zoneguard Brochure January 06, 2017
Hill & Smith Zoneguard FHWA Letter – B176 – NCHRP-350 January 06, 2017
Hill & Smith Zoneguard FHWA Letter – B176A – MASH January 06, 2017