In 2005 Los Angeles County Metro initiated the 57/60 Feasibility Study, which explored a wide range of potential improvements to the 57/60 Interchange, including “New Connections,” “Symmetric Widening,” and “Double-Deck” concepts. At its conclusion, the Feasibility Report concluded that of the three final conceptual improvements, all three were feasible for traffic operations; the New Connections concept provides improved operations through the main interchange area at the lowest overall cost and the highest cost benefit ratio. The New Connections concept formulated by Metro includes most of the improvements proposed for the 57/60 Confluence Project.
The current plan is to divide the total project into three phases with multiple contract packages. By phasing the project, the project will be built in a sequence that best utilizes available funds from the City of Industry, and the Los Angeles Metropolitan Transportation Authority. The project phasing also follows a logical sequence that will facilitate construction activities in subsequent phases.
Construct the westbound Grand Avenue on-ramp and the westbound auxiliary lane on SR-60. Construct interim operation improvements at the Grand Avenue Interchange. Currently Under Construction
Construct improvements on the arterial highways, including Grand Avenue south of the SR-60 Interchange, Approximately 0.4 miles of Golden Springs drive, and rebuild the intersection of Grand Avenue and Golden Springs Drive. Currently Under Construction
Construction of a westbound off-ramp and an auxiliary lane to Grand Avenue. Currently Under Construction
Construct Grand Avenue Bridge over SR-60, eastbound bypass off-ramp, and bypass connector. The $205M for construction is included in Measure M with a construction start date of 2025. A $35M FASTLANE grant will accelerate the start date to 2019-2020.