This project will build a new bypass ramp to Grand Ave from Eastbound SR-60, reconfiguring the south half of the Grand Avenue interchange from a diamond to a par-clo configuration including replacing the overcrossing, and an eastbound C-D road from the Grand Ave interchange to east of Diamond Bar Boulevard along SR-60. MA Engineering is leading the roadway and traffic design of local streets in order to mitigate the impacts to local streets due to the proposed freeway widening. Design includes roadway improvements, signing and striping and signal improvements.