Shamrock Materials supplies concrete and paving materials to North Bay contractors. The deal includes concrete, rock, sand and gravel facilities in Sonoma, Napa and Marin counties. Shamrock also has ready-mix plants in San Rafael, Petaluma, Santa Rosa, Cloverdale and Napa; building-materials sites in Cotati and San Rafael; sand and gravel outlet in Cloverdale; a materials depot on Landing Way along the Petaluma River.
The Shamrock deal, signed March 20, was one of three acquisitions in California and Tennessee that Vulcan closed in the first quarter of this year for $185.1 million. Vulcan has operations in Pleasanton, Half Moon Bay, South Bay and the Sacramento area.