Sweeping provides two primary benefits...the most obvious is the collection and removal of paper, leaves, and other visible debris that collects in the gutters. This debris can block storm water drains, causing localized flooding during heavy rains and pollutes our local waterways.
An equally important, but less visible benefit is the removal of metal particles and other hazardous water products left behind by passing vehicles. Although virtually invisible, these particles can be extremely harmful to fish and other wildlife. Sweeping also serves as one of our Best Management Practices (BMP) to control and improve water quality.
Sweeping takes place every other week, the day after trash collection (except designated holidays) from either 7:30 a.m. to 1 p.m. or 11:30 a.m. to 5 p.m. Signage is posted at the entrance to each neighborhood indicating exact day and time. View the 2018 street sweeping schedule (PDF).
Street parking is restricted during your neighborhood's designated sweeping day and time. Vehicles impeding the sweeper will receive a citation for each infraction. Payments, inquiries, lost tickets, information, or to request dismissal can be made online.
Citation Reviews may be completed using the Citation Dismissal Form (PDF) by mail:
City of Diamond Bar
Citation Processing Center
P.O. Box 10479
Newport Beach, CA 92658-0479
Additional Questions regarding parking citation processing can be sent to the Parking Administration office at 800-989-2058.