Event Brief
Aug 26, 2026 at 10:00 AM ET
Westbound I-60 closures start in Diamond Bar
By The BriefBrief
Overnight closures of the westbound 60 Freeway in Diamond Bar will begin Saturday, with all lanes fully closed between Lemon Avenue and Diamond Bar Boulevard. The weekend shutdowns run 12:01–6 a.m. Saturdays and 12:01–8 a.m. Sundays, with additional closures scheduled on Sept. 5–6 and Sept. 12–13, 19–20, and 26–27.
WHO: San Gabriel Valley Council of Governments (SGVCOG)
WHAT: All lanes closed on westbound 60 Freeway between Lemon Avenue and Diamond Bar Boulevard during overnight periods for construction-related improvements.
WHEN: Reported Aug 26, 2026
WHERE: Diamond Bar (westbound 60 Freeway between Lemon Avenue and Diamond Bar Boulevard)
WHY: The closures are necessary to safely accommodate ongoing construction activities and advance safety and traffic-flow improvements at a heavily traveled interchange.
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