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Maryland DOT State Highway Administration Approves Keystone® KeySystem™ II Retaining Wall System

Parul Dubey on May 17, 2018 - in News, Structural components

MINNEAPOLIS (May 17, 2018) The Maryland State Highway Administration (MSHA) recently issued approval of the Keystone® KeySystem II™ retaining wall system, using Keystone Compac® II or III and TenCate Miragrid® reinforcement for use on state highway projects for walls up to 50 feet high.


KeySystem™ II is designed to the highest standards and unique requirements of the transportation sector. The system consists of Keystone Compac® II or III units and TenCate Miragrid® geogrids by TenCate Geosynthetics. As the leading commercial retaining wall product on the market, Keystone Compac® features an open core design and the pin connection system. The Keystone Compac® is lighter weight than other structural blocks and has a shortened tail design that makes it easier to handle. KeySystem™ II is approved for use by 27 state highway administrations. 


For more information on KeySystem™ II and other Keystone® structural products, visit the PRODUCTS tab and/or the RESOURCES tab at www.keystonewalls.com, or call (952) 897-1040. Structural applications supported by Keystone® products include government, commercial, industrial, recreational, public works, and residential projects.

Keystone Retaining Wall Systems®

The first segmental retaining wall company in the United States, Keystone Retaining Wall Systems® provides the preferred product solutions for the residential, commercial, institutional, retail and government markets. Keystone Retaining Wall Systems® develops, markets and licenses concrete hardscape products to manufacturers across the globe. Keystone is a division of The QUIKRETE® Companies, which manufactures and distributes products from more than 200 facilities in the U.S., Canada, Puerto Rico and South America. Keystone Retaining Wall Systems® is committed to helping engineers, architects, specifiers, contractors and homeowners bring projects to life. For more information on Keystone Retaining Wall Systems®, visit www.keystonewalls.com.  

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