News Details

I 15 / Base Line Interchange Construction Project

Stay Informed

The City of Rancho Cucamonga, in partnership with Caltrans, the City of Fontana and the San Bernardino Associated Governments (SANBAG) will construct improvements to the Interstate 15 (I-15) / Base Line Road Interchange to alleviate congestion, improve safety and improve mobility throughout the project corridor. 

Stay informed with construction updates via the SANBAG project website at and follow @SANBAGnews on Twitter or #BetterBaseLine.   



( Building A Better Base Line Fact Sheet )