California Department of Transportation
 
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HPMS Data Library

California Public Road Data (PRD)

Click on the link to begin the download.

Public Road Data
2015 PDF File Excel File
2014 PDF File Excel File
2013 PDF File Excel File
2012 PDF File Excel File
2011 PDF File Excel File
2010 PDF File Excel File
2009 PDF File not available
2008 PDF File Excel File
2007 PDF File Excel File
2006 PDF File Excel File
2005 PDF File Excel File
2004 PDF File Excel File
2003 PDF File Excel File
2002 PDF File Excel File
2001 PDF File Excel File
 

 

WORKSHOPS AND CONFERENCES

Our workshops and conferences demonstrate our efforts to keep communication open and remain accessible to our partners and shareholders. We will continue to document discussions between stakeholders and share the outcomes as we move ahead and improve our processes.

 

IRI STUDY

A study comparing the methodology in a number of states as to how IRI data is gathered. A survey was taken and 39 states responded with information about the methods, locations and frequency for collecting IRI data. The results of the survey are summarized in the following Excel file.

 

Other Data and Information

 

For information on file formats and how to download them:

Simple instructions as needed.