CalAPA assists interested parties in learning more about asphalt pavements. This is the location to learn more about asphalt pavements, new technologies, new processes and innovative ways that asphalt pavements are being used. Use the navigation bar to the left to go to specific topic pages.
Caltrans, through partnering with Industry, has released the complete rewrite of the Standard Specifications Section 39 (for HMA). This first major rewrite in over 25 years includes significant changes to how the mix designs are completed, how the material is tested by bothe Contractors and agencies, and how pavements are constructed. In 2008 and 2009, additional revisions to Section 39 were undertaken. Please visit the special "Section 39" page for the latest information accessible via the navigation bar to the left.