Lemon Avenue / SR-60 Interchange

updated January 20, 2017


Beginning January 23, 2017 - One northbound lane on Lemon at Golden Springs will be closed starting Monday, January 23 for street widening & center median removal

November 28, 2016 - Crews begin brush clearance in preparation of the freeway ramps. Portions of the freeway sound wall within the work area will be temporarily removed during construction. Access to local businesses and residences will be maintained. Construction Update #2

Note: Current temporary traffic lane closures will remain throughout the duration of the project (12 months)

November 2, 2016 - Beginning on November 14, 2016 and continuing for approximately 12 months, traffic lanes will be temporarily and intermittently closed along portions of Lemon Avenue and Golden Springs Drive for street widening, removal of center medians and storm drain improvements.  Construction Alert: Street Widening and Storm Drain Installation


The cities of Diamond Bar and Industry, in cooperation with the Alameda Corridor East (ACE) Construction Authority and the California Department of Transportation District 7 (Caltrans) and the Federal Highway Administration (FHWA), will be constructing a new interchange on State Route 60 (SR-60) at Lemon Avenue.  The project will improve traffic operations by providing direct access to SR-60 from the surrounding areas.

Begin Project Construction November 2016
Complete Project Construction  Summer 2018



State Route 60 / Lemon Avenue Interchange Initial Study / Environmental Assessment Executive Summary (PARTIAL DOCUMENT, SEE BELOW FOR MORE INFORMATION).

COMPLETE DOCUMENTATION AVAILABLE VIA THE CAL TRANS WEBSITE. For more information, visit www.dot.ca.gov/dist07/resources/envdocs/.

Project Description:  Partial Interchange.  The project will construct a partial (three-legged) interchange, a WB on-ramp, and EB on-and off-ramps from Lemon Avenue.  It will also permanently remove the existing EB off- and on-ramps at Brea Canyon Road.  An auxiliary lane from the proposed EB on-ramp to the connector to SB SR-57 will also be constructed. 

The existing soundwall along EB SR-60 west of Lemon Avenue will be removed and a new soundwall will be installed along the edge of pavement of the EB off- and on-ramps.

A new traffic signal will be constructed along Lemon Avenue at the new EB ramps. Traffic signal modifications will also be made at the Golden Springs Drive/Lemon Avenue intersection and at the Golden Springs Drive/Existing EB ramp intersection near the Market World shopping center. 

The construction of the new ramps at Lemon Avenue will also eliminate the Truck Route designation along Golden Springs Drive between Brea Canyon Road and Lemon Avenue.

Rendering below depicts project details (Show is the selected Alternative 3 of the four alternatives proposed).


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