Flatiron Said Disputed Concrete Mix Cost Millions on Large Caltrans Project Settlement was reached last year with a ready-mix supplier on Fix 50 project For awhile in 2023, part of the California Dept. of Transportation's (Caltrans) Fix 50 HOV lane and resurfacing project in Sacramento itself needed to be fixed. Flatiron Dragados West, the design-build contractor for the $511-million project, whic...