Closures Of Highways 57 And 60 In Diamond Bar To Begin Monday

DIAMOND BAR, CA — Contractors will conduct construction work this week on State Routes 57 and 60 as part of the State Route 57/60 Confluence Chokepoint Relief Project, prompting a series of daytime and nighttime closures in Diamond Bar, the city said on Monday.

From Oct. 5 through Oct. 9, lanes on eastbound and westbound Highway 60 between Lemon Avenue and Diamond Bar Boulevard will close nightly from 9 p.m. to 8 a.m. The northbound Highway 57 connector to eastbound Highway 60 will also close nightly from 10 p.m. to 5 a.m.

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The eastbound Highway 60 Diamond Bar Boulevard on-ramp will close overnight Oct. 5 and Oct. 8 from 7 p.m. to 6 a.m. The eastbound Highway 60 connector to northbound Highway 57 will close Oct. 9 from 10 p.m. to 5 a.m.

Additional daytime closures are scheduled throughout the week. The eastbound Highway 60 Diamond Bar Boulevard on-ramp will close from 9 a.m. to 1 p.m., while the off-ramp will close from 9 a.m. to 3 p.m., Oct. 5 through Oct. 9.

Motorists traveling through the area were advised to allow additional time and use caution in construction zones.

More information about the Confluence Chokepoint Relief Project can be found here.