 The widening project began construction on April 14 , 1989 , with the first project adding two lanes between San Marcos Boulevard and I @-@ 15 . Additional funding was secured with a local sales tax increase in 1987 , providing $ 80 million ( about $ 195 million in 2015 dollars ) , and an additional $ 7 @.@ 8 million ( about $ 19 million in 2015 dollars ) from the California Transportation Commission . By March 1991 , another part of the project from College Boulevard to Melrose Drive began the bidding process . The next year , the project began to wind down , with bidding on the final part of the work between Nordahl Road and I @-@ 15 . The widening was complete by the beginning of 1994 . 
