This report analyzes habitat conditions, population status and barriers to migration for Oncorhynchus mykiss (steelhead trout) in the tributaries of the lower Santa Clara River watershed. The overall work was conducted from September 2004 through November 2005, with the field component being conducted during the summer and fall of 2004.  Earlier work (Kelley 2004) concluded that significant impacts to the steelhead trout run on the Santa Clara River had taken place, but that further studies were needed before a list of restoration priorities could be developed. This study address two of the three top recommendations from that study, provides a list of priority actions to be conducted on the Santa Clara River in order to rehabilitate the steelhead trout run in the Santa Clara River.