CalTrans, the California Department of Transportation, and the Federal Department of Transportation have each approved SlipStone®™ walls
in meeting all DOT standards, thus securing SlipStone®™ barriers and walls continued appearance not only along California highways,
but also across the nation.
SlipStone®™ decorative barriers and walls are already installed throughout California, Ohio, Georgia, Minnesota,
Canada, and France; applications include road median barriers, roadside retaining walls/barriers, park walls,
and man-made lake perimeter walls. SlipStone's®™ work can be viewed along scenic California State Highway 101 in Fortuna
(where roughly three miles of SlipStone®™ imprinted medians were installed in 2007) as well as San Louis Obispo, a project that is
proudly featured on the
CalTrans Highway Barrier Aesthetics site. Currently, SlipStone®™ is in development of a project along
Interstate-5 in northern Los Angeles calling for four miles of textured wall featuring different types of patterns and effects.
Available technical reports & write-ups:
Aesthetics
Safety
Project Write-Ups