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 solution is to provide new auxiliary and through lanes, and bypass connectors that provide cost-effective results in relieving congestion, improving air quality, and decreasing the number of accidents for this 2-mile segment.
The current plan to divide the total project into three phases with three contract packages allows the project to be built in a sequence that best utilizes available funds from the City of Industry and Los Angeles County Metro.
Construct the westbound Grand Avenue on-ramp and the westbound auxiliary lane on SR-60, and construct interim operation improvements at the Grand Avenue Interchange. This phase is fully funded and will be completed in November 2013. Construction to relocate Utilities & Storm Drain started in November 2011.
This phase of the project will improve operations of the Grand Avenue and Golden Springs intersection. The project will add a southbound through lane, and two northbound through lanes on Grand Avenue between the freeway and Golden Springs. On Golden Springs in the eastbound direction, a second left turn lane is added along with a dedicated right turn. This phase is fully funded and will be completed in July 2014.
The remaining improvements of the 57/60 Confluence project will be constructed as Phase III, which include new construction of a longer, wider, taller Grand Avenue bridge over SR-60, the eastbound bypass off-ramp at the west junction and eastbound bypass connector at the east junction; construction of the westbound auxiliary lane from the southbound SR-57 dropped lane and westbound off-ramp, and to reconstruct the westbound loop on-ramp at Grand Avenue. If all goes according to plan, construction of this phase could be completed by late-2017.
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The map above shows improvements proposed for the Alternative #3A plan. Use your mouse to interact with the map to view details of the proposed plan.
Rollover the plan detail icon (a circle icon with a number inside) to view effected freeway lanes and roads.
Click a plan detail icon to zoom into the affected area and view details about the proposed changes.
Pan around the map by holding down on your mouse button while dragging your mouse around the map.
Zooming into and out of the map can be performed by scrolling the mouse wheel on your mouse.
Use the navigation controls in the bottom right control panel of the map to zoom in, zoom out, and pan around the map by clicking the directional buttons.
The north arrow icon in the top right of the map shows the north orientation of the map.
VISSM – Visual Simulation of Proposed Improvements.