 WATSONVILLE, Calif.--BUSINESS WIRE--- GVA BuildBetterTogether--Granite NYSE:GVA announced it has been awarded eight 2021 Awards of Excellence from the National Stone, Sand Gravel Association NSSGA. NSSGA is the leading association for aggregate producers and the equipment manufacturers and service providers who support the industry. Its members produce more than 90 of the crushed stone and 70 of the sand and gravel used in the United States each year. The Awards of Excellence program recognizes NSSGA membe 