Weekend closure of MacArthur Boulevard on-ramp to northbound SR-73 

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The California Department of Transportation (Caltrans) is continuing work on northbound (NB) State Route 73 (SR-73). This work will require a weekend closure of the on-ramp from NB MacArthur Boulevard to NB SR-73 for a construction project (detour provided below). The closures will begin at midnight (12 a.m.) on Saturday, December 3 until 5 a.m., Monday, December 5.

Planned Detour: 

  • Continue on MacArthur Boulevard
  • LEFT onto Jamboree Road
  • RIGHT onto Bristol Street
  • LEFT on SR-73 on-ramp

Please obey all posted signs and traffic instructions for the safety of Caltrans crews and travelers.

Caltrans appreciates the public’s patience while we perform this work. Electronic changeable messages signs will notify drivers of the closure. The work schedule is subject to change due to traffic incidents, weather, availability of equipment and/or materials, and/or construction-related issues. 

For more information and updates, you may contact the District 12 Public Information Office at (657) 328-6000 or on social media via Twitter, Facebook and Instagram. 

For those with sensory disabilities requiring alternate formats (i.e. Braille, large print, sign language interpreter, etc.) and those needing information in a language other than English, please contact Nathan Abler at (657) 650-5146 or TTY 711.