Public Works

The Public Works Department provides information on general engineering matters relating to City streets, public right-of-ways, City’s capital projects, utilities, traffic related issues, and more. The Department is responsible for the day-to-day maintenance of all publicly owned properties, including streets, curbs, gutters, sidewalks, traffic signals, signs, streetlights, sewers/storm drains and landscaping.

Contact Information
909.839.7040
publicworks@diamondbarca.gov

 

SR-60 Freeway Interchange Project
new interchange to be built at Lemon Avenue – More »
Construction Impact Notice
Diamond Bar Boulevard and Brea Canyon Road: Nov. 12-14, Nov. 18-21– More »