Since 2002, CMC Traffic Control Specialists dba CMC Construction is a local, small San Francisco Bay area public works contractor, engineering firm, & supply shop.   With registered civil and traffic engineers, ATSSA-certified traffic supervisors and flagmen, and a class A and C-31 California contractor’s license, we are prepared to design, implement, and supply any of your temporary traffic control needs in Northern California.  We can get started on traffic control plans for your project today.  In addition to traffic control and engineering, we sell and rent traffic control supplies and equipment and fabricate roadway signs in our traffic sign shop.