Bay Cities Paving & Grading, Inc., a Northern California General Engineering Contractor established in 1946 maintains a reput ... ation of constructing award winning projects in both the private and public sector. As a top Heavy Civil firm based out of Concord, CA we employ over 300 employees on our projects throughout the greater Bay Area. While providing construction management services we also specialize in paving, grading, underground utility installation, demolition and precast concrete slab install. read more