Sand and Gravel Companies Honored With MSHA Safety Awards MSHA recognizes Central Sand and Gravel and Lyman-Richey Sand & Gravel operations for their safety record. Read More Awards, Lyman-Richey Corporation, Lyman-Richey Sand & Grave, News, Safety, Central Sand and GravelBrady JonesSeptember 7, 2017Awards, Lyman-Richey Corporation, Lyman-Richey Sand & Gravel, Central Sand and Gravel, Safety, National Safety Council, MSHA, Department of Labor