The purpose of this program is to reduce congestion on roadways in San Mateo County. The program divides streets and highways projects into two categories: those that will remove bottlenecks in the most congested commute corridors and those that will improve supplemental roadway projects throughout the county. A little more than 27 percent of the total sales tax revenues, or $413 million in 2004 dollars, have been allocated to this category. It is anticipated that this will generate an additional $325 million in state and federal grants.