57/60 CONFLUENCE PROJECT

The 57/60 Confluence has been funded with a combination of Local, State, and Federal sources. Major construction of the SR 57/60 Confluence Chokepoint Relief Project began in July 2023 and is ongoing. The project is scheduled for completion in July 2028. 

​

The construction includes:

​

• New eastbound SR-60 Grand Avenue bypass bridge

       exclusively for eastbound SR-60 commuters exiting
       Grand Avenue.

​

• New Grand Avenue bridge with reconfigured on- and

       off-ramps.

​

• New eastbound SR-60 bypass bridge over Diamond

       Bar Boulevard is to be used as a bypass for eastbound
       SR-60 commuters.

​

• New eastbound SR-60 bypass bridge over

       Prospectors Road is to be used as a new lane on
       eastbound SR-60.

​

​

​

​