15/91 Connector Project Facts


The Riverside County Transportation Commission (RCTC) is preparing to build the 15/91 Express Lanes Connector, which will link the future southbound 15 Express Lanes to the westbound 91 Express Lanes and link the eastbound 91 Express Lanes to the future northbound 15 Express Lanes. The 15/91 Express Lanes connector is designed to provide a seamless transition between these Riverside County tolling systems for reliable, convenient travel for vehicles and express buses.

This connector is part of RCTC’s Interstate 15 Express Lanes Project, which is currently under construction. However, the projects have separate funding sources, and the new 15 Express Lanes will be open before the connector is completed. The $180 million connector is funded by Senate Bill (SB) 132. SB 132 provided $427 million for five projects known as the Riverside County Transportation Efficiency Corridor, including the 15/91 Express Lanes Connector. For more information, visit www.rctc.org/rctec.


  • Allow seamless transition for motorists between the existing 91 Express Lanes and the future 15 Express Lanes
  • Reduce congestion and improve traffic operations
  • Improve access for drivers to continue travel on the express lanes network without exiting and merging into the general-purpose lanes
  • Enhance traffic flow
  • Increase travel time reliability


RCTC is proceeding with a design-build process to expedite delivery of this project and minimize construction impacts.

Connector Open to Motorists: 2022

15-91 Connector Project Fact Sheet 15-91 Connector Project Fact Sheet – Spanish